TURKISH PHYSICAL SOCIETY 37th INTERNATIONAL PHYSICS CONGRESS

September 1-5, 2021

BODRUM /

Book of Abstracts & Book of Programme

Editors

Baki AKKUŞ, Gülfem SÜSOY DOĞAN, Değer SOFUOĞLU, Aylin ÇALIŞKAN, Duygu HALİS

I

II

Değerli Türk Fizik Derneği 37. Uluslararası Fizik Kongresi Katılımcıları,

Türk Fizik Derneği tarafından her yıl düzenlenen ve her geçen yıl artan katılımcı sayısı ile organize ettiğimiz Türk Fizik Derneği Uluslararası Fizik Kongresi’nin 37. si bu yıl 01-05 Eylül 2021 tarihleri arasında Herodot Kültür Merkezi – Konacık Bodrum’da gerçekleştirilmektedir.

Ülkemizdeki en geniş katılımlı fizik kongrelerini gerçekleştiren Türk Fizik Derneği’nin düzenlediği kongreler, fizik biliminin tüm alt dallarını kapsamaktadır. Türk Fizik Derneği 37. Uluslararası Fizik Kongresi (TFD-37); Atom ve Molekül Fiziği, Uygulamalı Fizik, Yoğun Madde Fiziği, Enerji ve Uygulamaları, Yüksek Enerji, Parçacık ve Plazma Fiziği, Malzeme Bilimi ve Uygulamaları, Matematiksel Fizik, Astrofizik ve Uygulamaları, Medikal Fizik ve Uygulamaları, Nükleer Fizik, Fizik Eğitimi ve Uygulamaları konularını içermektedir.

TFD kongreleri, fizik temel bilim dalındaki en güncel bilimsel çalışmaların, uluslararası platformda akademisyenler, bilim dünyasına yeni adım atmış genç araştırmacılar ile fizik temel bilimine yıllarını vermiş hocalarımızın buluştuğu bir ortam oluşturarak paylaşılmasını ve bilgi alışverişini sağlamayı amaçlar.

III

TFD-37 Kongremize yapılan başvurular arasından bilim kurulu üyelerimizin değerlendirmeleri sonucunda 200 den fazla sözlü bildiri, 60 adet poster bildiri kongrede sunulmak üzere kabul edilmiştir.

Türk Fizik Derneği 37. Uluslararası Fizik Kongresi’ne davet ettiğimiz konularında uzman toplam 31 Türk ve yabancı çağrılı konuşmacımıza davetimizi kabul ederek bizi onurlandırıp kongremize verdikleri katkı ve bilgi paylaşımı için teşekkür ederiz.

Değerli katkılarından dolayı kongrenin Bilim Kurulu Başkanı Prof. Dr. Serkant Ali ÇETİN’e ve bilim kurulu üyelerine, Danışma Kurulu Başkanı Prof. Dr. Fahrettin GÖKTAŞ ile danışma kurulu üyelerine ve Türk Fizik Derneği Başkanı Prof. Dr. Baki AKKUŞ’a teşekkür ederiz. Ayrıca kongremizin gerçekleşmesi için destek sağlayan kurumlara, düzenleme kurulu üyelerimize ve siz değerleri katılımcılarımıza katkılarından dolayı teşekkür ederiz.

Verimli bir kongre geçirmemiz dileğiyle...

Saygılarımla,

Öğr. Gör. Dr. Hatice YILMAZ ALAN Ankara Üniversitesi TFD–37 Düzenleme Kurulu Başkanı

IV

Dear Participants of the 37th Turkish Physical Society International Physics Congress,

The annual international physics congress of the Turkish Physical Society is being organized during this second year of the pandemic. This is perhaps one of the most extraordinary periods where almost all standards of daily life has been under a big change. It is worth mentioning that despite all the changes, the invariant concept that effects everybody has been science itself. These challenging times have given all societies worldwide the opportunity to better realize the value of science and the importance of scientific thinking. My personal will is of course to see the pandemic end as soon as possible, but at the same time, to see that the appreciation to science and scientists continue at an increasing pace. This is especially crucial for our field as a fundamental science not only because we try to resolve mysteries of nature but also because physics provides the basis to all applied and engineering sciences.

Founded in 1950, the Turkish Physical Society (TPS) represents the vast majority of Turkish academics, researchers and graduate students in physics. Among the various scientific and educational activities of TPS, the International Physics Congress series is the largest annual organization of its kind in Turkey, covering essentially most sub and allied fields of physics. The high standards of this congress could only be achieved through the vision and guidance of high quality physicists, reflecting their experience to

V

assure the correct roadmap and content of the event; hence, the composition of the Scientific Committee of TPS-37 played a crucial role. I am grateful to the members of the Scientific Committee for being part of this effort and establishing the high standards.

The plenary part of the scientific program of the congress includes more than 30 invited talks from pioneering physicists in their field of research. During the opening ceremony, we will also be holding an important panel on “Accelerator Technologies for the Mankind”. The aim of this panel is to discuss the need and the use of particle accelerators in a wide spectrum from fundamental research to applied science and to daily life as generic and advanced technologies. The congress will be hosting more than 200 oral presentations to be held in parallel sessions and about 60 posters presentations.

I would like to thank once again all invited speakers, panelists, participants and members of the Scientific Committee for making TPS-37 a big success.

Prof. Dr. Serkant Ali Çetin İstinye University TPS-37 Scientific Committee Chair

VI

Değerli Fizikçiler,

19. Yüzyılın sonlarından itibaren bilimsel keşifler akıl almaz hızda gelişim göstermektedir. Özellikle son yıllarda fizik alanında her gün belki de her saat yeni teoriler, gözlemler veya buluşlar ortaya çıkarılmaktadır. Bilimsel süreçlerdeki bu hızlı değişimleri takip etmek, daha doğrusu bu gelişmelerin bizatihi içerisinde yer almak bireysel çalışmadan ziyade kolektif çalışmayı gerektirmektedir. Bu amaçla 1950 yılında kurulan Türk Fizik Derneği düzenlediği konferanslarla yurt içinde ve dışında çalışan bilim insanlarını, özellikle fizikçileri bir araya getirerek onların fizik alanındaki en son gelişmeleri tartışmalarını sağlamak ve birlikte çalışma bilincini oluşturmak için büyük çaba sarf etmektedir.

Özellikle son yıllarda ülkelerin savunma sanayi ve sağlık başta olmak üzere bilimsel bilgiyi paylaşmada oldukça tutucu davrandıklarına hepimiz şahit olmaktayız. Millet olarak gelişmiş ülkeler arasında yer almak için kritik teknolojilere sahip olmamız gerekir. Şüphesiz bunun başlıca yolu temel bilimlere ve özellikle fiziğe önem verilmesinden geçmektedir. Maalesef son yıllarda ülkemizde lisans düzeyinde fizik eğitimi can çekişmektedir. Fizik alanındaki bu olumsuz durumun başta mühendislik olmak üzere diğer bilim alanlarına da yansıması giderek hissedilmektedir. Bu nedenle, ülkemizde fizik alanında yapılan bilimsel araştırmalar, bunların bilim insanları arasında tartışılması ve ortak çalışma ortamlarının oluşturulması oldukça önemlidir.

VII

Türk Fizik Derneği tarafından gerçekleştirilen bu kongre; fizik alanındaki son gelişmelerin tartışılmasını, bilimsel paylaşımlar ve ortak çalışmalar için iş birliği ortamı oluşturmayı hedeflemektedir. Bu nedenle, fizik kongrelerinin gerçekleştirilmesinde yoğun çaba sarf eden TFD başkanı Prof. Dr. Baki Akkuş’a, 37. Fizik Kongresinin bütün kurullarında ve Yerel Organizasyon Komitesinde yer alan hocalarımıza, ayrıca davetli konuşmacı olarak veya bildiri sunarak katılan bütün bilim insanlarımıza teşekkürlerimizi sunarız.

Prof. Dr. Fahrettin GÖKTAŞ Fırat Üniversitesi Rektörü TFD-37 Danışma Kurulu Başkanı

VIII

Değerli Fizikçiler;

Türk Fizik Derneği Uluslararası Fizik Kongresi, fizik bilimi alanındaki güncel bilimsel çalışmaları sunabilen, bu sayede yüksek katılımlı bir kongrede iş birliklerinin doğmasına sebep olan, sektörel uygulamalar ve araştırmalarla ilgili güncel bilgileri de edinebilmek gibi amaçlar doğrultusunda yerli ve yabancı tüm akademisyenleri ve lisans/lisansüstü öğrencileri bir araya getirerek bilimsel niteliği yüksek büyük bir platform sunan en önemli uluslararası etkinliklerin başında gelmektedir.

Türk Fizik Derneğimiz tarafından her yıl düzenlenen yüksek katılımcı sayısına sahip Türk Fizik Derneği Uluslararası Fizik Kongresi bilimsel toplantısının 37.’si bu yıl, devam eden korona virüs salgını nedeniyle 01- 05 Eylül 2021 tarihleri arasında Bodrum Herodot Kültür Merkezi’nde hem yüz yüze hem de online olarak ZOOM uygulaması üzerinden gerçekleştirilecektir. Umuyoruz ki korona virüs salgını yapılan aşılarla tehdit olmaktan çıkar ve önümüzdeki yıllarda Türk Fizik Derneği Kongrelerimizi yüz yüze katılımla yapabiliriz.

Her yıl Türk Fizik Derneği tarafından verilen ödüller Bodrum Herodot Kültür Merkezi’nde 1 Eylül 2021 tarihinde saat 09:00 da yapılacak olan Açılış Töreni içerisinde ödül sahiplerinin

IX

katılımıyla takdim edilecektir. Açılış töreni ve ödüllerin takdimi ZOOM üzerinden canlı olarak yayınlanacaktır.

2021 yılı Türk Fizik Derneği Ödül Sahipleri:

2021 YILI TÜRK FİZİK DERNEĞİ ONUR ÖDÜLÜ Sahipleri:

Prof. Dr. Mehmet BİBER – Ardahan Üniversitesi Fizikçi Rektörü, Prof. Dr. Rıfat ÇAPAN – Balıkesir Üniversitesi, Prof. Dr. Serap DALGIÇ – Trakya Üniversitesi, Prof. Dr. Lütfü DEMİR – Atatürk Üniversitesi, Prof. Dr. Atilla EVCİN – Afyon Kocatepe Üniversitesi, Prof. Dr. Fahrettin GÖKTAŞ – Fırat Üniversitesi Fizikçi Rektörü, Prof. Dr. Zeynep GÜREL – Marmara Üniversitesi, Prof. Dr. Abdülhalik KARABULUT – Ağrı İbrahim Çeçen Üniversitesi Fizikçi Rektörü, Prof. Dr. Ayşen ÖZEL – İstanbul Üniversitesi, Prof. Dr. Merih SERİN – Yıldız Teknik Üniversitesi, Prof. Dr. Aysel KAYIŞ TOPAKSU – Çukurova Üniversitesi.

2021 YILI TÜRK FİZİK DERNEĞİ BASIN ÖZEL ONUR ÖDÜLÜ, Sözcü Gazetesinde yazdığı köşe yazıları ile bilime yapmış olduğu katkılarından dolayı Sultan UÇAR’a verilmiştir.

2021 YILI TÜRK FİZİK DERNEĞİ SANAYİCİ VE İŞ ADAMI ÖZEL ONUR ÖDÜLÜ, GES Teknoloji CEO’su olarak

X

Türkiye’nin çeşitli illerinde kurmuş olduğu Bilim Merkezlerinin yanı sıra, şu anda CEO’luğunu yaptığı VRLab Academy ile birlikte 27 farklı ülkede 4 farklı müfredata yönelik online deney platformunu tüm Dünyadaki öğrencilere sunarak; eğitimin demokratikleşmesi adına çalışmalar yapmasından dolayı Gürcan DEMİRCİ’ye verilmiştir.

2021 YILI TÜRK FİZİK DERNEĞİ ULUSLARARASI ÖZEL ONUR ÖDÜLÜ, yurt içinden ve yurt dışından bilimsel çalışmalarıyla örnek ve öncü olup bilim insanlarını genç fizikçilerle buluşturup bilimsel canlılık yaratarak ülkemizin uluslararası bilimsel platforma yükselmesine ve teknolojinin gelişmesine önemli katkı sağlamasından dolayı Bilkent Üniversitesi Öğretim Üyesi Prof. Dr. Hilmi Volkan DEMİR’e verilmiştir.

2021 YILI TÜRK FİZİK DERNEĞİ KAMU ÖZEL ONUR ÖDÜLÜ, Çağdaş Belediyecilik anlayışına ve Bilim, Sanat, Kültür etkinliklerine sağladığı önemli katkı ve desteklerden dolayı Bodrum Belediye Başkanı Ahmet ARAS’a verilmiştir.

2021 YILI TÜRK FİZİK DERNEĞİ PROF. DR. ENGİN ARIK BİLİM İNSANI ÖDÜLÜ, Yunanistan Patras Üniversitesi’nden Prof. Dr. Konstantin ZIOUTAS’a verilmiştir.

XI

2021 YILI TÜRK FİZİK DERNEĞİ PROF. DR. ŞEVKET ERK GENÇ BİLİM İNSANI ÖDÜLÜ, Atatürk Üniversitesi’nden Doç. Dr. Esra KAVAZ’a verilmiştir.

TÜRK FİZİK DERNEĞİ 2020 ÖZGEN BERKOL DOĞAN EN İYİ DENEYSEL POSTER BİLDİRİ ÖDÜLÜ, Ankara Üniversitesinden Ender AKDOĞAN’a verilmiştir.

TÜRK FİZİK DERNEĞİ 2020 ENGİN ABAT EN İYİ KURAMSAL POSTER BİLDİRİ ÖDÜLÜ, İstanbul Üniversitesi Lisans Öğrencisi Batuhan ÇİL’e verilmiştir.

Kongrede yer alan konu başlıkları; Atom ve Molekül Fiziği; Uygulamalı Fizik; Yoğun Madde Fiziği; Enerji ve Uygulamaları; Yüksek Enerji, Parçacık ve Plazma Fiziği; Malzeme Bilimi ve Uygulamaları; Matematiksel Fizik, Astrofizik ve Uygulamaları; Medikal Fizik ve Uygulamaları, Nükleer Fizik, Fizik Eğitimi ve Uygulamaları şeklindedir.

Türk Fizik Derneği 37. Uluslararası Fizik Kongresi’nde konusunda uzman Dünya’nın değişik ülkelerinden 31 Çağrılı Konuşmacı sunum yapacaktır. Kongremize toplam 400 den fazla katılım olmuştur. Türk Fizik Derneği 37. Uluslararası Fizik Kongresi Bilim Kurulu üyelerinin değerlendirmeleri sonucunda, bu yıl 200 den fazla sözlü bildiri ve 60 adet poster bildiri kongrede sunulmak üzere kabul edilmiştir.

XII

Kongremizin hazırlık sürecindeki özverili katkıları için;

Bilim Kurulu Başkanı Prof. Dr. Serkant Ali ÇETİN’e ve Bilim Kurulu üyelerine, Danışma Kurulu Başkanı Prof. Dr. Fahrettin GÖKTAŞ’a ve Danışma Kurulu üyelerine, Düzenleme Kurulu Başkanı Öğr. Gör. Dr. Hatice YILMAZ ALAN’a, ve Düzenleme Kurulu üyelerine, Yerel Düzenleme Kurulu Başkanı Duygu HALİS’e ve Yerel Düzenleme Kurulu üyelerine

özverili katkılarından dolayı teşekkür ederim.

Her yıl olduğu gibi kongrelerimizin en çok yükünü çekenlerden ve tüm kongrelerimizin Koordinatörlüğü’nü yapan Türk Fizik Derneği Yönetim Kurulu Üyesi Doç. Dr. Gülfem SÜSOY DOĞAN’a özel teşekkürlerimi sunarım.

Her zaman yanımızda olan ve destek veren Prof. Dr. Rabia Burcu ÇAKIRLI MUTLU’ya, Doç. Dr. Lidya AMON SUSAM’a, Doç. Dr. Ertan GÜDEKLİ’ye, Doç. Dr. Değer SOFUOĞLU’na, Araş. Gör. Aylin ÇALIŞKAN’a, Çisem İlayda İNCİ’ye, BİLSEV Başkanı Ahmet RENKLİOĞLU’na, Giray GİRENGİR’e, Didar Püren ERBEK’e teşekkür ederim.

XIII

Ayrıca İstinye Üniversitesi’nin Zoom alt yapısını kullanmamıza izin veren ve destek sağlayan İstinye Üniversitesi Rektör V. Prof. Dr. Erdal KARAÖZ’e ve Zoom alt yapısı ile ilgili olan teknik ekip çalışanlarına teşekkürlerimi sunarım.

Bodrum İlçe Milli Eğitim Müdürü Aslan KORKMAZ’a, Konacık Anadolu Lisesi Müdürü Maral TAKEŞ’e ve tüm çalışma arkadaşlarına teşekkürü bir borç bilirim.

Bodrum Belediyesi Basın Yayın ve Halkla İlişkiler Müdürlüğü’ne ve Bodrum Belediyesi Kültür ve Sosyal İşler Müdürlüğü’ne değerli katkılarından dolayı teşekkür ederim.

Kongre davetimizi kabul ederek bize destek olan yerli ve yabancı tüm çağrılı konuşmacılara, bildirileri ve posterleriyle bize destek veren siz değerli araştırmacılara,

Kongremize destek veren önceki Bodrum Kaymakamı – yeni Ankara Vali Yardımcısı Sayın Bekir YILMAZ’a, yeni Bodrum Kaymakamı Sayın Bilgehan BAYAR’a ve tüm Bodrum Kaymakamlığı çalışanlarına, Bodrum Belediye Başkanı Sayın Ahmet ARAS’a ve Bodrum Belediyesi çalışanlarına, Ağrı İbrahim Çeçen Üniversitesi Rektörü Sayın Prof. Dr. Abdülhalik KARABULUT’a, Ardahan Üniversitesi Rektörü Sayın Prof. Dr. Mehmet BİBER’e, Celal Bayar Üniversitesi Rektörü Sayın Prof. Dr. Ahmet ATAÇ’a, Fırat Üniversitesi Rektörü Sayın Prof. Dr.

XIV

Fahrettin GÖKTAŞ’a, TÜBİTAK’a, TÜBA’ya ve tüm kurum, kuruluş ve firmalara çok teşekkür ediyoruz.

Saygılarımla

Prof. Dr. Baki Akkuş Türk Fizik Derneği Başkanı

XV

XVI

“Bilime, bilimsel araştırmaya önem vermeyen ve bundan dolayı ileri teknolojileri üretemeyen ülkelerin, varlıklarını sürdürebilmeleri mümkün değildir.”

Prof. Dr. Baki AKKUŞ – 2007

XVII

XVIII

Aramızdan ayrılanlar kitabına Türk Fizik Derneği web sitesi http://tfd.com.tr/ adresinden ulaşabilirsiniz.

Bu kitabın tüm yayın hakları Türk Fizik Derneği'ne aittir. Eğitim amaçlı kaynak gösterilerek alıntı yapılabilir.

XIX

XX

Türk Fizik Derneği 37. Uluslararası Fizik Konferansı (TFD-37), "TÜBİTAK-BİDEB 2223 Yurt İçi Bilimsel Etkinlikleri Destekleme Programı B-Yurt İçi Bilimsel Etkinlik Düzenleme Desteği" tarafından desteklenmiştir.

XXI

XXII

SUPPORTERS

XXIII

XXIV

Presidents

Ress. Assist. Dr. Hatice YILMAZ ALAN–President of Organizing Committee Prof. Serkant Ali ÇETİN– President of Scientific Committee Prof.Fahrettin GÖKTAŞ– President of Advisory Committee Prof. Baki AKKUŞ - President of Turkish Physical Society

XXV

Invited Speakers

Bülent AKINOĞLU - Middle East Technical University – Turkey Topic of the talk: Next generation solar cell

Johannes BARTH - University - Topic of the talk: Molecular nanosystems at interfaces

Raja CHAMAKHI- University of Tunis El Manar- Tunisia Topic of the talk: Anisotropy control in photoelectron spectra: A coherent two-pulse interference strategy

R.Burcu ÇAKIRLI MUTLU - - Turkey Topic of the talk: Empirical approach on nuclear structure: p-n interaction and n-capture cross sections

Hilmi Volkan DEMİR - - Turkey Topic of the talk: Emerging field of colloidal quantum wells optoelectronics: pushing the limits

Adrien DEVOLDER - Toronto University - Canada Topic of the talk: Coherent control of ultracold molecular dynamic: formation and scattering

Hakan ERKOL - Boğaziçi University - Turkey Topic of the talk: Multimodality imaging techniques in medical physics

XXVI

Ali ERYILMAZ - Middle East Technical University - Turkey Topic of the talk: Students’ Achievement and Misconceptions in Physics: What they really mean and what we really measure?

Katharina FRANKE - Freie Universität University - Germany Topic of the talk: Building and investigating magnetic adatom chains on superconductors atom by atom

Katherine FREESE - Texas University - USA Topic of the talk: in the universe

Ricardo GARCIA - Instituto de Ciencia de Materiales de Madrid - Topic of the talk: Frontiers of force microscopy at solid-liquid interfaces: From interfacial water to self-assembly of proteins

Peter GRAHAM - Stanford University - USA Topic of the talk: Gravitational wave detection with atomic sensors

Ömer İLDAY - Bilkent University - Turkey Topic of the talk: Why does self-organization reduce entropy? Lessons from laser-driven pattern formation

Nihan KOSKU PERKGÖZ - Eskişehir Technical University - Turkey Topic of the talk: Growth of 2 Dimensional Materials and Their Device Applications

XXVII

Burç MISIRLIOĞLU - - Turkey Topic of the talk: Ferroelectric thin film based devices and ferroelectric phase stability under elastic clamping in reduced dimensions

Sergei D. ODINTSOV - ICREA/ICE - Spain Topic of the talk: Unifying the early-time with late-time dark energy: the case of modified gravity

Şener OKTİK - Board Member of at ŞİŞECAM, - Turkey Topic of the talk: Nanotechnology and Photovoltaic Energy Conversion

Orhan ÖZTÜRK - İzmir Institute of Technology University - Turkey Topic of the talk: Magnetic layer formation on a non-magnetic stainless steel substrate by nitrogen ion implantation

Luciano REZZOLLA - Goethe University - Germany Topic of the talk: The first image of a black hole

Sezen SEKMEN - Kyungpook National University - South Korea Topic of the talk: The ultimate LHC: Physics prospects at very high luminosity

Yannis SEMERTZIDIS - Korea Advanced Inst. of Science and Technology (KAIST) - Korea Topic of the talk: The storage ring proton EDM method with the hybrid- symmetric ring at 10^{-29} e-cm

XXVIII

Ramazan Tuğrul SENGER - İzmir Institute of Technology University -Turkey Topic of the talk: Excitons in lead halide perovskites

Qaisar SHAFI - Delaware University - USA Topic of the talk: Topological structures in unified theories

Pierre SIKIVIE - Florida University - USA Topic of the talk: Axion dark matter

Christian SMORRA - Johannes Gutenberg University - Germany Topic of the talk: Testing the standard model in precision measurements comparing single trapped antiprotons and protons

Mehmet ŞAHİN - Abdullah Gül University - Turkey Topic of the talk: Development of a modified detailed balance model for quantum dot nanocrystal solar cells

Livius TRACHE - IFIN-HH - Topic of the talk: Nuclear physics for astrophysics with small and large accelerators

Hakan TÜRECİ - Princeton University - USA Topic of the talk: Machine learning with quantum dynamical systems

XXIX

Meng WANG - Institute Of Modern Physics, Chinese Academy Of Science – Topic of the talk: Precision mass measurements of short-lived nuclides at HIRFL-CSR

Alfred Jay WEYMOUTH - Regensburg University - Germany Topic of the talk: Turning force microscopy on its side and strumming a single chemical bond

Fahrettin YAKUPHANOĞLU - Fırat University - Turkey Topic of the talk: Organic radar absorbing materials for stealth technology

XXX

Advisory Committee

Fahrettin GÖKTAŞ - Rector of Fırat University - Turkey - Chair Mahmut DOĞRU - Supervisory Board Member of Higher Education Council - Turkey Muhammed Hasan ASLAN -Rector of Gebze Technical University - Turkey Ahmet ATAÇ - Rector of Manisa Celal Bayar University - Turkey Mehmet BİBER - Rector of - Turkey Abdulhalik KARABULUT - Rector of Ağrı İbrahim Çeçen University - Turkey Orhan UZUN - Rector of Bartın University - Turkey Nihat BERKER - Vice Rector of Kadir Has University - Turkey Abdurrahman ÇETİN - Vice Rector of Kilis 7 Aralık University - Turkey Oğuz DOĞAN - Vice Rector of Necmettin Erbakan University - Turkey Ali Ercan EKİNCİ - Vice Rector of Erzincan Binali Yıldırım University - Turkey Cem Cüneyt ERSANLI - Vice Rector of - Turkey Önder ŞİMŞEK - Vice Rector of Atatürk University - Turkey Barış Tamer TONGUÇ - Vice Rector of - Turkey Pervin ARIKAN - , Turkish Physical Society Board Member - Turkey Sezai ASUBAY - Dean of the Faculty of Sciences and Letters, - Turkey Emre GÜLER - Dean of the Faculty of Science, Hitit University - Turkey Tekin İZGİ - Dean of the Faculty of Sciences and Letters, İnönü University - Turkey

XXXI

İsmail KARAKUT - Dean of the Faculty of Sciences and Letters, Işık University - Turkey Oya OĞUZ - Dean of the Faculty of Sciences and Letters, Haliç University - Turkey İsmail TARHAN - Dean of the Faculty of Science, Çanakkale Onsekiz Mart University - Turkey Eyyüp TEL - Dean of the Faculty of Sciences and Letters, Osmaniye Korkut Ata University – Turkey Elşen VELİ - Dean of the Faculty of Sciences and Letters, - Turkey Abbas Kenan ÇİFTÇİ - İzmir Economy University - Turkey Bülent EKİCİ - - Turkey Ömer YAVAŞ - - Turkey

XXXII

Scientific Committe

Serkant Ali ÇETİN - İstinye University - Turkey - Chair Ethem AKTÜRK - Aydın Adnan Menderes University - Turkey Calin ALEXA - IFIN-HH - Romania Metin ARIK - Boğaziçi University - Turkey Betül ÇETİN - - Turkey Klaus BLAUM - Max Planck Institute - Germany Dennis BONATSOS - National Center for Scientific Research (NCSR) Demokritos - Surajit CHATTOPADHYAY - Amity University - Kolkata - Rui Jui CHEN - GSI - Germany Victor CIUPINA - Constanta Ovidius University - Romania Radu CONSTANTINESCU - University of Craiova - Romania Orhan ÇAKIR - Ankara University - Turkey Rifat ÇAPAN - Balıkesir University - Turkey Goran DJORDJEVIC - University of Nis - Serbia Şinasi ELLİALTIOĞLU - TED University - Turkey Kazım Yavuz EKŞİ - İstanbul Technical University - Turkey Birol ERTUĞRAL - - Turkey Franz J. GIESSIBL - Regensburg University - Germany Mihai GIRTU - Constanta Ovidius University - Romania Ali Murat GÜLER - Middle East Technical University - Turkey Oğuz GÜLSEREN - Bilkent University - Turkey Gail ter HAAR - Institute of Cancer Research- England Karl JAKOBS - Freiburg University - Germany

XXXIII

Nasser KALANTAR NAYESTENAKI - KVI - Center for Advanced Radiation Technology - Netherlands Laura M. HOUGHTON - North Carolina University - USA Joachim MNICH - CERN - Switzerland Erkcan ÖZCAN - Boğaziçi University - Turkey Wolfgang QUINT - GSI - Germany Daniel SCHULTE - CERN - Switzerland H. Eugene STANLEY - Boston University - USA Artemis SPYROU - Michigan State University - USA Saleh SULTANSOY - TOBB University of Economics and Technology - Turkey V. Nefer ŞENOĞUZ - Mimar Sinan Fine Arts University - Turkey Murat TOMAKİN - Recep Tayyip Erdoğan University - Turkey Dimitar TONEV - Institute for Nuclear Research and Nuclear Energy - Bulgaria Mehmet Burçin ÜNLÜ - Boğaziçi University - Turkey Hüseyin Ali YALIM - Afyon Kocatepe University - Turkey Nicolae Victor ZAMFIR - IFIN HH - Romania Vasileios ZARIKAS - Nazarbayev University - Kazakhstan Frank ZIMMERMANN - CERN - Switzerland Konstantin ZIOUTAS - University of Patras - Greece

XXXIV

Referee Commitee

Metin ARIK – Boğaziçi University – Turkey Dennis BONATSOS – National Center for Scientific Research Demokritos (NCSR) – Greece Şinasi ELLİALTIOĞLU – TED University – Turkey Mihai GIRTU – Constanta Ovidius University – Romania Nasser KALANTAR-NAYESTANAKI – KVI Center for Advanced Radiation Technology – The Netherlands Ekmel ÖZBAY – Bilkent University – Turkey Dimitar TONEV – Institute for Nuclear Research and Nuclear Energy – Bulgaria Cali UR – IFIN-HH – Romania

XXXV

Organizing Committee

Hatice YILMAZ ALAN - Ankara University - Turkey - Chair Gülfem SÜSOY DOĞAN – İstanbul University – Turkey – Coordinator Aytül ADIGÜZEL – İstanbul University – Turkey Canan AKSU CANBAY – Fırat University – Turkey Lidya AMON SUSAM – İstanbul University – Turkey Sema BİLGE OCAK – Gazi University – Turkey Tuba BÜYÜKDOĞAN - - Turkey R. Burcu ÇAKIRLI MUTLU – İstanbul University – Turkey Aylin ÇALIŞKAN - İstanbul University - Turkey Sadiye ÇETİNKAYA ÇOLAK – Eskişehir Osmangazi University – Turkey Çağlar ÇETİNKAYA - İstanbul University - Turkey Rena ÇİFTÇİ - - Turkey Arzu ÇİLLİ – Yıldız Technical University – Turkey Haris DAPO - Ankara University - Turkey Merve DOĞAN - Arel University - Turkey Ayşegül ERTOPRAK - İstanbul University - Turkey Ertan GÜDEKLİ – İstanbul University – Turkey Feyza GÜZELÇİMEN – İstanbul University – Turkey Cahit KARANFİL - Mugla Sıtkı Kocman University - Turkey Esra KAVAZ - Atatürk University - Turkey Bora KETENOĞLU - Ankara University – Turkey Didem KETENOĞLU - Ankara University – Turkey Barış KINACI – İstanbul University – Turkey Görkem OYLUMLUOĞLU - Mugla Sıtkı Kocman University – Turkey

XXXVI

Değer SOFUOĞLU – İstanbul University – Turkey Bükem TANÖREN - Acıbadem University - Turkey Hüseyin YILDIZ - Ankara University – Turkey Ayberk YILMAZ - İstanbul University - Turkey

XXXVII

International Organizing Committee

Gordana APOSTOLOVSKA – Saints Cyril and Methodius University of Skopje – FYROM Goutami CHATTOPADHYAY - Calcutta University - India Sevdalina STOYANOVA DIMITROVA – Bulgarian Academy of Science – Bulgaria Vesna GERSHAN – Saints Cyril and Methodius University of Skopje – FYROM Danica KRSTOVSKA – Saints Cyril and Methodius University of Skopje – FYROM Mila PANDUROVIĆ – Vinca Institute of Nuclear Sciences – Serbia Dimitrios PETRELLIS – Greece Mariana PETRIS – IFIN-HH – Romania Laura RADULESCU – IFIN-HH-Romania Ualikhanova BAYAN SAPARBEKOVNA – South Kazakhstan State Pedagogical University-Kazakhstan Vasiliki SKOUFI – National and Kapodistrian University of Athens – Greece Ivanka BOZOVIC-JELISAVCIC – Vinca Institute of Nuclear Sciences – Serbia

XXXVIII

Local Organizing Committee

Duygu HALİS - Yıldız Technical University - Turkey - Chair İbrahim AKGÖZ - İstanbul University – Turkey Ceyda AKIN - İstanbul University - Turkey B. Gazi AKSOY - İstanbul University - Turkey Onur ARMAN - İstanbul University - Turkey Orhan Barış ATEŞ - İstanbul University - Turkey Zehra BAŞAKIL - İstanbul University - Turkey Emir BAYSAZAN - İstanbul University - Turkey Ecem BOZDOĞAN - Uludağ University - Turkey Eylül Zeynep DEMİRBAŞ - İstanbul University - Turkey Aydın EROL - Yıldız Technical University - Turkey Elanur HUT - İstanbul University - Turkey Çisem İlayda İNCİ - İstanbul University - Turkey Rotinda İŞİK - İstanbul University - Turkey Timur ÖNER - İstanbul Technical University - Turkey Berkay ÖZDEŞ - İstanbul University - Turkey Yusuf M. ÖZMEN - İstanbul University - Turkey Emre TOPÇU - İstanbul Technical University - Turkey Selen Nur YILMAZ- İstanbul University - Turkey

XXXIX

Topics

01- Atomic and Molecular Physics • Atomic Physics • Molecular Physics • Laser Technology • Molecular Spectroscopy • Atomic Spectroscopy • Laser Spectroscopy • Molecular Imaging • Non-Linear Physics • Quantum Physics • Cold Atoms, Ions, Molecules and Plasma • Astrophysics (Experimental) • Polymers • Radiation Physics • Molecular • Structure and Properties of Atoms, Ions and Molecules • Etc..

XL

02- Applied Physics • Geophysics and Related Topics • Atmospheric Events and Application • Physical, Theoretical and • Electrical and Electronics Technology • Environmental Engineering and Technologies • Computer Sciences in Physics • Computer Simulation Studies in Physics • Application of Machine and Deep Learning to Physical Sciences • Optical Physics • Polymer Sciences • Acoustic • Etc..

XLI

03- Condensed Matter Physics • Nanotechnology and Nanomedicine • Nanobiotechnology • Solid State and Crystal Physics • Crystal Physics Technology • Nanosurfaces • Nanointerfaces • Energy Efficiency • Etc..

XLII

04- Energy and Applications • Solar Energy and Application • Photovoltaic Technology • Geothermal Energy • Bioenergy and Biomass Energy Technology • Wind Energy and Application • Hydrogen and Fuel Cell Technology • Nuclear Energy • Sustainable Fossil Energy Systems • Renewable Energy Technologies, Management and Environmental İmpact • Energy Utilization and Environmental Effect, Energy Efficiency • Sustainable Energy Technologies in The Built Environment • Climate Change Modelling/Simulation,Climate Networks, Weather Forecasts/Scenarios • Renewables, Hydrogen/Nuclear/Other Cleaner Energy Resources/Technologies • Etc…

XLIII

05- High Energy, Particle and Plasma Physics • Accelerator Physics • High Energy and Particle Physics • Plasma Technology and Application • Chaotic Systems • Quantum Information • Quantum Entanglement • Non-Linear Physics • Etc…

XLIV

06- Material Science and Applications

• Surfaces, Interfaces and Colloids • Chemical Engineering • Polymers and Amorphous Materials • Biomaterials Science and Engineering • Melting and Casting • Powder Metallurgy • Steels and Steel Production Technologies • Mechanical Behaviour of Materials Ceramic and Glass • Science and Technology Composite Materials • Materials Characterization • Glass Science and Engineering • Plastic Engineering • Membranes and Membrane Science • Sol-Gel Science and Technology • Thin Film and Choating Technology • Construction Materials • CO2 Reduction and Low Carbon Technologies • Etc…

XLV

07- Mathematical Physics, Astrophysics and Applications

• Cosmology • Theoretical Physics • Astrophyics and Space Science • Astronomy • Dynamical Systems • Mathematical Modelling In Physical Sciences • Computational Mathematics, • Statistical Physics • Etc..

XLVI

08- Medical Physics and Applications

• Medical Physics • Biophysics • Radiotherapy and Application • Radiology--Radiobiology and Application • Nuclear Medicine • Etc…

XLVII

09- Nuclear Physics • Nuclear Structure • Reactor Technology • Hadron Structure • Neutron Physics • Nuclear Astrophysics • Radiation Physics • Nuclear Application In Life Sciences • Spectroscopy and Measurement Techniques • Etc..

XLVIII

10- Physics Education and Applications

• Learning / Teaching Methodologies and Assessment • Global Issues In Education and Research • Educational Measurement & Evaluation • Teaching and Learning Processes • Communication Technologies in Education • Information Technologies in Education • Science and Mathematics Education • Teacher Education • Internet Technologies • Etc..

XLIX

L

TPS-37 / PANEL "Accelerator Technologies for the Mankind" Sept 1st, 2021, Wednesday, 11:00

The aim of this panel is to discuss the need and the use of particle accelerators in a wide spectrum from fundamental research to applied science and to daily life as generic and advanced technologies. Among the subjects to be addressed are: - The energy frontier and the precision frontier in particle physics pushing forward the state of the art accelerator technologies - Requirements of the investment on infrastructure and expertize - The multi-disciplinary nature of R&D on particle accelerators - The global vision versus national roadmaps and priorities - Applications of accelerators from health to industry

Panelists:

Karl Jakobs - University of Freiburg, Germany ECFA Chair, ICFA member

Joachim Mnich - CERN, Switzerland Director of Research & Computing

Tatsuya Nakada - EPFL, Switzerland ICFA ILC Panel Chair

Saleh Sultansoy - TOBB ETU, Turkey Member of ATLAS, LHeC & FCC

Frank Zimmermann - CERN, Switzerland FCC Deputy Spokesperson

Moderator: Serkant Ali Çetin - İstinye University, Turkey

LI

LII

INDEX

Invited Speakers Oral Presentations Poster Presentations Participants

LIII TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Invited Speakers

Bülent AKINOĞLU - METU, Turkey IS_1 Topic of the talk: Next generation solar cell 37 Johannes BARTH - Technical University of Munich, Germany IS_2 38 Topic of the talk: Molecular nanosystems at interfaces Raja CHAMAKHI - University of Tunis El Manar, Tunis IS_3 Topic of the talk: Anisotropy control in photoelectron 39 spectra: A coherent two-pulse interference strategy R. Burcu ÇAKIRLI MUTLU - Istanbul University, Turkey IS_4 Topic of the talk: Empirical approach on nuclear structure 40 : p-n interaction and n-capture cross sections Hilmi Volkan DEMİR - Bilkent University, Turkey IS_5 Topic of the talk: Emerging field of colloidal quantum 41 wells optoelectronics: pushing the limits Adrien DEVOLDER - Toronto University, Canada IS_6 Topic of the talk: Coherent control of ultracold molecular 42 dynamic: formation and scattering Hakan ERKOL - Boğaziçi University, Turkey IS_7 Topic of the talk: Multimodality imaging techniques in 43 medical physics Ali ERYILMAZ - METU, Turkey Topic of the talk: Students’ achievement and IS_8 misconceptions in physics: what they really mean and what 44 we really measure? Katharina FRANKE - Freie Universität University, Germany IS_9 Topic of the talk: Building and investigating magnetic 45 adatom chains on superconductors atom by atom Katherine FREESE - Texas University, USA IS_10 Topic of the talk: Dark matter in the universe 46 Ricardo GARCIA - Instituto de Ciencia de Materiales de Madrid, Spain IS_11 Topic of the talk: Frontiers of force microscopy at solid- 47 liquid interfaces: From interfacial water to self-assembly of proteins Peter GRAHAM - Stanford University, USA IS_12 Topic of the talk: Gravitational wave detection with atomic 48 sensors Ömer İLDAY - Bilkent University, Turkey IS_13 Topic of the talk: Why does self-organization reduce 49 entropy? Lessons from laser-driven pattern formation 1

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Nihan KOSKU PERKGÖZ - Eskişehir Technical University, Turkey IS_14 50 Topic of the talk: Growth of 2 Dimensional Materials and Their Device Applications Burç MISIRLIOĞLU - Sabancı University, Turkey Topic of the talk: Ferroelectric thin film based devices and IS_15 51 ferroelectric phase stability under elastic clamping in reduced dimensions Sergei ODINTSOV - ICREA/ICE, Barcelona IS_16 Topic of the talk: Unifying the early-time inflation with 52 late-time dark energy: the case of modified gravity Şener OKTİK - Kadir Has University, Turkey IS_17 Topic of the talk: Nanotechnology and photovoltaic energy 53 conversion Orhan ÖZTÜRK - İzmir Institute of Technology, Turkey Topic of the talk: Magnetic layer formation on a non- IS_18 54 magnetic stainless steel substrate by nitrogen ion implantation Luciano REZZOLLA - Goethe University, Germany IS_19 55 Topic of the talk: The first image of a black hole Sezen SEKMEN - Kyungpook National University, South Korea IS_20 56 Topic of the talk: The ultimate LHC: Physics prospects at very high luminosity Yannis SEMERTZIDIS - Korea Advanced Inst. of Science and Technology (KAIST), Korea IS_21 57 Topic of the talk: The storage ring proton EDM method with the hybrid-symmetric ring at 10^{-29} e-cm Ramazan Tuğrul SENGER - İzmir Institute of Technology, IS_22 Turkey 58 Topic of the talk: Excitons in lead halide perovskites Qaisar SHAFI - Delaware University, USA IS_23 59 Topic of the talk: Topological structures in unified theories Pierre SIKIVIE - Florida University, USA IS_24 Topic of the talk: Axion dark matter 60 Christian SMORRA - Johannes Gutenberg University, Germany IS_25 Topic of the talk: Testing the standard model in precision 61 measurements comparing single trapped antiprotons and protons Mehmet ŞAHİN - Abdullah Gül University, Turkey IS_26 Topic of the talk: Development of a modified detailed 62 balance model for quantum dot nanocrystal solar cells 2

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Livius TRACHE - IFIN-HH, Romania IS_27 Topic of the talk: Nuclear physics for astrophysics with 63 small and large accelerators Hakan TÜRECİ - Princeton University, USA IS_28 Topic of the talk: Machine Learning with quantum 64 dynamical systems Meng WANG - Institute of modern physics, Chinese Academy of Science, China IS_29 65 Topic of the talk: Precision mass measurements of short- lived nuclides at HIRFL-CSR. Alfred WEYMOUTH - Regensburg University, Germany IS_30 Topic of the talk: Turning force microscopy on its side and 66 strumming a single chemical bond Fahrettin YAKUPHANOĞLU - Fırat University - Turkey IS_31 Topic of the talk: Organic radar absorbing materials for 67 stealth technology

3

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

The oral presentations are arranged in alphabetical order according to the conference topics and then the name of the presenters.

4

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations

Atomic and Molecular Physics

Aliye Demet DEMİRAĞ 01OP1 69 Mechanism of Covid19 therapy with thalidomide Alp Can GÖKDELEN 01OP2 Toxicological and molecular docking analyses of anticancer drug 69 Cladribine Arzu KURT 01OP3 70 Transport efficiency in linear and star networks Barış UZUN 01OP4 Molecular dynamic simulations of pnipam-cysteine conjugation 70 in aqueous solution Bayram DURAK 01OP5 The molecular docking study of Prednisolone into DNA and 71 integrin Burak TEKİN 01OP6 Investigation of New Coumarin Derived Dye for Dye Sensitive 71 Solar Cells and Calculation of Electronic Properties Burak TEKİN 01OP7 Investigation of Photoelectrochemical Properties of DTP Derived 72 New Dyes by DFT Theoretical Calculation Method Cansu ÖZKAYA Langmuir-Blodgett Film Fabrication of Calix[4]arene Contains 01OP8 73 p-tert-butyl Group and Investigation of Sensor Properties During Adsorption and Diffusion Processes Çağlar KARACA A Case Study for Exploration of Implicit Solvent Effect by Linear 01OP9 Response and State-Specific Polarizable Continuum Model: 74 Effect of Methyl Substitution in Indole Derivatives on Absorption and Emission Characteristics Ebru YALÇIN 01OP10 Surface Plasma Resonance (SPR) Sensors Based on Organic Thin 75 Films: New Applications in Gas and Vapour Sensing Emre AVCULAR 01OP11 Molecular structure and docking analysis of the factor Xa 76 inhibitor Edoxaban Gökhan İLHAN 01OP12 Prediction of Trajectories of 2-Body Problem Using Deep 76 Learning Gözde YILMAZ 01OP13 Molecular Docking Analysis of Apixaban, Effective in the 77 Treatment of Blood Clots, with the MAPK P38 target protein 5

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Gözde YILMAZ 01OP14 Molecular Docking Study of Midostaurin, an Effective drug in 78 the Treatment of Myeloid Leukemia Güldem ÜRER ÖZBİLEN 01OP15 Energies and Electric Dipole Transitions in quadruply ionized 79 Krypton (Kr V) Güldem ÜRER ÖZBİLEN 01OP16 79 Extended calculations of the Ac III spectrum Halil Uğur TAŞDEMİR 01OP17 Modeled Radicals of Favipiravir Molecule Used in The 80 Treatment of Covid 19 Hira ASİF 01OP18 80 Lifetime enhancement of nonlinear ultra-fast plasmon resonances Mahmut AYDINOL Following Electron Impact Excitation of Single 104Rf, 105 Db, 01OP19 106Sg, 107 Bh, 108 Hs, 109Mt Atoms O Subhell 81 Relativistic.Ionization Cross Sections by Using Lotz’s Equations* Mahmut AYDINOL Following Electron Impact Excitation Of Single(110Ds, 111Rg, 01OP20 82 112Cn, 113Uut, 114Fl, 115Uup) Atoms O Subhell Relativistic.Ionization Cross Sections By Using Lotz’s Equations Merve İZMİRLİ 01OP21 Structural Properties and Biological Activity Predictions of Some 83 Barbiturate Compounds Murat ERTÜRK Size-extensive Corrected Configuration interaction potential 01OP22 84 energy curves for the ground and excited states of some diatomic molecules Murat KURT 01OP23 A Generalized Quantum Addition Circuit Based on Quantum 84 Fourier Transform Samet ARSLAN 01OP24 COVID-19 major protease enzyme and SARSCoV-2 spike 85 glycoprotein Molecular Docking Analysis with Ruxolitinib Serap ŞENTÜRK DALGIÇ 01OP25 Adsorption Properties of Hydrogen Peroxide Molecule on Ag 85 doped PANI Nanoribbons: A DFT Study Seyhan AYDIN 01OP26 86 Study of quantum liquids according to Landau theory

6

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Sibel SEN 01OP27 87 Vapour sensing performance of 4-Sulfocalix[4]arenethin film Tugba GÖCEN Structural, Vibrational And Electronic Properties Of Valproic 01OP28 87 Acid And Its Analogs By Density Functional Theory: A Comparative Study

7

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Applied Physics

Ahmet AZGIN 02OP1 Hybrid Receiver Design of A Solar Concentrator for a 89 Parabolic Trough - The Thermal Part Ahmet AZGIN 02OP2 89 Fiber Optical Imaging via Compressed Sensing Ala JEHAD 02OP3 Heavy Doped Semiconductor in Graphene Schottky Junction 90 Solar Cell Ali Kemal MAK 02OP4 Effect of Al doping on the electrochromic properties of WO3 90 thin films Alper ÇETİNEL 02OP5 Fabrication of Silicon Nanowire Arrays by Silver-Assisted 91 Electroless Etching and Their Optical and Electrical Properties Buğra KOCAMAN Total Ionizing Dose (TID) and Displacement Damage (DD) 02OP6 91 Analyses with Conceptual Satellites of Different Space Missions Cahit PERKGÖZ 02OP7 Convolutional Neural Network for Simple Identification and 92 Characterization of Nanomaterials Caner PENSE 02OP8 92 Space weather and e-Navigation Elsen AYDIN 02OP9 Properties of Different size Laser Cut Monocrystalline Solar 93 Cell Fulya BAĞCI 02OP10 A Compact Wideband Bandpass Filter with Hexagonal Split 93 Ring Resonators Gamze KAYA 02OP11 Holographic Airy Beams as good accelerating light sources for 94 energy Güneş BAŞBAĞ 02OP12 Thermo-structural SME Study on Quaternary CuAl-based 95 HTSMA alloyed with Vanadium Element Mustafa Yılmaz 02OP13 96 Simulation of isotope separation in gas centrifuge device Mürsel ŞEN 02OP14 97 Examination of Beer-Lambert Law By Fractional Mathematics Telem ŞİMŞEK 02OP15 98 High Moment FeB Nanoparticles for Magnetic Hyperthermia

8

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Ubeydullah Ahmed BİRİNCİ 02OP16 Automatic Irrigation and Fire Extinguishing System in 99 Greenhouses Zikriye ÖZBEK 02OP17 Surface Plasmon Resonance Study of Calixarene Langmuir- 100 Blodgett Thin Film

9

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Condensed Matter Physics

Ahmet KÜRŞAT BİLGİLİ 03OP1 Determination of Dielectric Coefficient By Using Optical 102 Properties Ahmet KÜRŞAT BİLGİLİ 03OP2 103 Some Structural and Thermal Properties of Ingan/Gan Solar Cells Arzu KURT Calculation Of Raman Mode Frequency And The Damping 03OP3 104 Constant (FWHM) as a Function of Temperature in [NH2CHNH2+]Cd(H2POO)3 Aydın EROL 03OP4 Predicting Molecular Band Gaps With Machine Learning Using 105 Decision Tree And Random Forest Models Buğra YILDIZ 03OP5 Mechanical and Electronic Properties of New Al4Sb3Co 106 Compound Çağıl KADEROĞLU 03OP6 Effect of Different Types and Sizes of Metal Nanoclusters on the 107 Gas Sensing Properties of Graphene Dilara İÇKECAN 03OP7 107 Probing the Phonon Spectrum of Twisted Bilayer Graphene Dilek TOKTAMIŞ 03OP8 Investigation of reusable effects of natural calcite minerals on 108 dosimetric trap depths Esra ERBİLEN TANRIKULU 03OP9 The effect of series resistance (Rs) on the -V and G/w-V 108 characteristics Esra KUŞ 03OP10 Structural and optical properties of iron-cobalt co-doped 109 cadmium oxide thin films Esra KUŞ 03OP11 Effect of iron doping on structural and electrical properties of 110 spray-deposited CdO thin films Evren Görkem ÖZDEMİR 03OP12 Electronic, Structural and Magnetic Properties of CrWBi Half- 110 Heusler Alloy via Ab-Initio Method Güneş BAŞBAĞ 03OP13 Ti and Mg Incorporated High Temperature Cu-based Shape 111 Memory Alloy with Escalated Operation Temperatures Havva Elif LAPA 03OP14 The investigation of electrical and dielectric characteristics of the 112 Ag/n-Si structures with MgF2 interfacial layer

10

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Hüseyin TOKTAMIŞ 03OP15 Stabilites of the Silicon Carbide (SiC) thermoluminescence peaks 112 in terms of kinetic parameters Işıl Pakize ILGAZ AYSAN Examination of interactions between some graphene-like two- 03OP16 113 dimensional MXene materials with neurotransmitter molecules and amino acids İlhan CANDAN 03OP17 Sensor properties of Plasmonic Gold Nanoparticles Produced by 114 PLD İlhan CANDAN 03OP18 Sensor properties of Plasmonic Silver Nanoparticles Produced by 115 PLD Kevser ŞAHİN TIRAŞ 03OP19 Triplet exciton improvement via galvinoxyl spin radical to 116 increase the power conversion efficiency of photovoltaic cells Mehmet ESEN 03OP20 The Effect of Alternating Electric Field Direction on Carbon 116 Nano-Coatings formed with ECR Plasma System Meltem BABAYİĞİT CİNALİ 03OP21 Optical and electrochromic properties of a self-Li ion containing 117 electrochromic coating/device Mustafa ESEN Electromagnetic Shielding and Absorption Properties of Textile 03OP22 117 Fabrics Coated with Carbon, Zinc Oxide and Indium with ECR System And Evaporator System Sedat AVCI Calculation of isothermal compressibility and bulk modulus as a 03OP23 118 function of pressure in a polar perovskite-like [C2H5NH3]Na0.5Cr0.5(HCOO)3 metal–organic framework Sera İFLAZOĞLU Synthesis of %1Dy3+ and %1Eu3+ Doped LiB3O5 Compounds 03OP24 119 with Different Synthesis Methods and Investigation of the Optical Characterizations Taner KALAYCI 03OP25 Investigation of the effect of the number of layers on the magnetic 120 properties of multilayer Pt/Co thin films Volkan KURT 03OP26 The Effect of Cobalt Doping on the Cytotoxicity of Iron Oxide 121 Nanoparticles on Fibroblast and Gastric Cancer Cells

11

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Zakir ÇALDIRAN 03OP27 Fabrication and Examination of Photodiode Properties of the 122 Schottky Diodes with the Inorganic Interface

12

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Energy and Applications

Asmin AŞKIN 04OP1 124 What About the Waste? End of Life Photovoltaic Systems Ayşe Mine KÜÇÜKKAYA 04OP2 The Investigation of Using Cetyl Palmitic Acid as a Phase 125 Change Material in a Solar Pond Barkın ÖZER 04OP3 125 Organic Solar Cells with Blends of Polythiophene and PCBM Cankut Kaan BOLAT Calculation of a Possible Rebound Effect Arising from the 04OP4 126 Implication of Various Market Based Instruments for Carbon Pricing Elanur ÇELİK 04OP5 Design of dielectric-metal-dielectric (DMD) structure for 127 optoelectronic device applications Gamze KAYA 04OP6 Effect of color filters on the performance of Monocrystalline 127 and Polycrystalline Photovoltaic Solar Panels

13

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

High Energy, Particle and Plasma Physics

Ali Can CANBAY 05OP1 129 Single Production of Vector Like X Quark at the HL-LHC Ayben Karasu UYSAL 05OP2 129 Dielectron Production in pp, p-Pb and Pb-Pb Collisions Ayşe BAT 05OP3 Developing of a Short Baseline Neutrino Near Detector Using 130 a Water-Based Liquid Scintillator Technology Aytül ADIGÜZEL 05OP4 Analysis Description Language and CutLang Interpreter for 131 HEP Bora KETENOĞLU 05OP5 Ensuring Design Specifications of a Hybrid X-ray Undulator in 132 a Magnetic Measurements Lab Burak DAĞLI 05OP6 Luminosity and Beam Parametrization for Miscellaneous 132 Colliders by the Software AloHEP Caner SARI 05OP7 Analysis of Gas Gains for MICROMEGAS (MICRO–MEsh 133 GAseous Structure) Detectors Doğukan KIZBAY 05OP8 Identifying Boosted Higgs to Bb(Bar) Decays with Deep 133 Learning In Proton-Proton Collisions at the LHC Conditions Duygu HALİS 05OP9 Lebt Line Design, Construction and results from Measurement 134 Box at KAHVELab Emrah TİRAS 05OP10 Water-based Liquid Scintillator Detector as a New Technology 135 Testbed for Neutrino Studies Emrah TİRAS 05OP11 ANNIE: The Accelerator Neutrino Neutron Interaction 135 Experiment at Fermilab Emre ÇELEBİ KAHVELab 800 MHz Radio Frequency Quadrupole (RFQ) 05OP12 136 Proton Accelerator Design, Simulation and Manufacturing Progress Ender AKDOĞAN 05OP13 Engineering Studies on C and H-Type Dipole Magnets For 136 Booster Ring of TAC-TURKAY SR Facility Esra OKUMUŞ 05OP14 Spectroscopic investigation of Argon dc glow discharge plasma 137 medium

14

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Esra OKUMUŞ 05OP15 Analysis of mucilage samples taken from the Marmara Sea with 137 Laser Induced Plasma Spectroscopy (LIBS) F.Kamer KARAKUŞ 05OP16 Complex structure of the helium flux recorded in the AMS-02 138 experiment Furkan TOKAÇ 05OP17 The FLUKA Simulation of Muons Energy Deposition on 138 Metals and Alloys Gülşah BOZKIR 05OP18 139 Investigation of Light Baryons at Non-Zero Temperature Hilmi ÜNLÜ 05OP19 139 Special relativity in six dimensions Hüseyin BAHTİYAR 05OP20 140 Semileptonic decay of the Xic in Lattice QCD Mehmet Baran ÖKTEN 05OP21 Analysis of TEC Anomalies Caused by the 30 October 2020 140 Aegean Earthquake M.S. DVORNIKOV 05OP22 141 Neutrino Osciliations in External Fields in Curved Spacetime Orhan DONMEZ 05OP23 Bondi-Hoyle Accretion around 4D Einstein-Gauss-Bonnet 142 Black Hole Osman Emre DELİALİOĞLU 05OP24 A search for the first generation charged vector-like leptons at 142 future colliders Ozgur ETİSKEN 05OP25 Collective Effects Estimates for The Current Damping Ring 143 Design of the FCC-e+e- Ozgur ETİSKEN 05OP26 143 Current Design Status Of FCC-E+E- Pre-Booster Ring Options Özgün Mustafa ÖZŞİMŞEK 05OP27 Double Top Quark Production through FCNC tqh Interactions 144 at the HL-LHC Rauf JAFAROV 05OP28 Neutrino Osciliations in External Fields in Curved Spacetime 144

Selcuk HACIÖMEROĞLU 05OP29 Optimization of electric sextupole profile for reducing image 145 charge effects Serpil YALÇIN KUZU 05OP30 Determination of Charged Particle Pairs with Supervised 145 Learning Methods

15

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Sevim AÇIKSÖZ 05OP31 Permanent Magnet Microwave Discharge Ion Source & Its 146 LEBT Line Shahin MAMEDOV 05OP32 Finite temperature meson-nucleon coupling constant from the 146 soft-wall AdS/QCD model Şeyma BİÇER 05OP33 147 Pair production of vectorlike Y or T quark at the FCC-hh Şeyma ESEN 05OP34 Space Charge Calculations for Low Beta Proton Beam and Its 147 Effect on Emittance Taha Batuhan İLHAN 05OP35 148 Control Systems of DC accelerators at KAHVELab

16

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Material Science and Applications

Bedirhan GÜRAYDIN 06OP1 The Effect of Eloktro Pickling Parameters on Surface Quality 150 in Stainless Steel Plate Production Berk MORKOÇ 06OP2 Electrical Characteristic and Radiation Response of 151 Al/Yb2O3/SiO2/n-Si/Al MOS Capacitor Burcu AYGÜN Effect of porosity on reflection and transmission of porous 06OP3 152 silica thin films: Simulations based on Maxwell Equations versus EMAs Cumhur YILDIRIM 06OP4 153 Soft metrology for sol-gel thin film synthesis Ebru Tanboğa KORKMAZ Investigation of geometric optimization and molecular 06OP5 153 dynamics process of AuCd nanostructure via NonSCC-GFN1- xTB based on DFT computational method Esra KAVAZ 06OP6 Evaluation of mechanical and nuclear shielding characteristics 154 of different granite rocks: A Monte Carlo FLUKA study Esra ŞEN 06OP7 155 Molding of Micropatterned Biomimetic Structures with PDMS Fatma Pınar CHOI 06OP8 Lithium and Cerium Modified NiOx Hole Transporters For 156 Inverted Perovskite Solar Cells Gizem Durak YÜZÜAK 06OP9 157 TiO2 thin films with Ag seed-layer for triboelectric devices Gülsevim Aydın ŞAHİN Charge Transport in Highly Strained [6]Cycloparaphenylene: 06OP10 158 Impact of Polimorphism for Packing Structure-dependent on Static/Dynamic Disorder Hasan DURMUŞ 06OP11 158 The investigation of Mn substitution for MgB2 samples Hüseyin Kaan KAPLAN 06OP12 Transparent, p-Type Conducting (CuS)x:(ZnS)1-x Based 159 Nanocomposite Thin Films for Optoelectronic Applications Makbule TERLEMEZOĞLU Optimization of the Sputtering Power to Improve the Structural, 06OP13 159 Optical, and Electrical Properties of Gallium Doped Zinc Oxide Thin Films Nadire NAYİR 06OP14 160 Computational modeling of 2D materials

17

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Onur AY The Effect of Different Oxide Characteristics and Acid 06OP15 161 Combinations on Descailing Capability on AISI 304 Qualıty Staınless Steel Surface Pshdar Ahmed Ibrahim IBRAHIM 06OP16 Thermomechanical and Structural Effect of the Quaternary 162 Alloying Elements on Cu Based Shape Memory Pshdar Ahmed Ibrahim IBRAHIM 06OP17 Microstructure and magnetic properties of the AlCoFeMnNi- 163 X(X=Ga, V) High entropy alloys Selma ÖZARSLAN 06OP18 163 Recent Research of Biodegradable Zn Based Alloys

18

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Mathematical Physics, Astrophysics and Applications

Aymila AKYILDIZ 07OP1 Effect of Particle Size and Geometry on Magnetocaloric and 165 Magnetic Hyperthermia Properties in Magnetic Nanoparticles Bahri SONÜSTÜN 07OP2 165 Evidences for Chaotic Agricultural Production Bahri SONÜSTÜN 07OP3 166 The Chaotic Dynamics of Covid-19 and Climate Change Batuhan ÇİL 07OP4 Investigation of Fluid Isotropization for Bianchi Type - I 166 Universe Model Damla GÜMÜŞ 07OP5 Analysis of a new eclipsing binary with a Delta Scuti 167 component Damla KOCAMAN 07OP6 BI-Hamiltonian Structure Of (2+1)-Dimesional Evolutionary 167 Hirota Type Equations Derya SÜRGİT 07OP7 The Orbital Solution of Southern Eclipsing Binary Star: CW 168 Eri Derya SÜRGİT 07OP8 Spectroscopic Observations of Eccentric Eclipsing Binary 168 Stars: TYC 5378-1590-1 and TYC 8378-252-1 Dicle ZENGİN ÇAMURDAN 07OP9 169 The Optical and X-ray Variability of a Faint Polar: V1189 Her Doğa VESKE 07OP10 Characterizing the observation bias in gravitational-wave 169 detections and finding structured population properties Doğa VESKE 07OP11 170 Search for Black Hole Merger Families Ebru BAŞ 07OP12 170 A study about Heating Solar Coronal Hole Plasma Emir BAYSAZAN 07OP13 171 A Transit Cosmological Model in f(R,T) Theory of Gravity Erhan KARA 07OP14 Examination of Fluid Isotropization for Bianchi Type - V 171 Universe Model Filiz KAHRAMAN ALİCAVUS 07OP15 172 Analysis of a TESS field oEA system TZ Dra Gizem Dilara AÇAN YILDIZ 07OP16 Dynamics of f(R) Cosmologies Containing Einstein Static 172 Models For Bianchi Type-I

19

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Gökhan İLHAN 07OP17 Development of a Parallel Green’s Function Propagator 173 Algorithm For High-Order Harmonic Generation Simulations Gülşen KARAKOYUN 07OP18 The effects of the shape on skyrmion phases in magnetic 173 nanodots Halil KUYRUKCU 07OP19 An Anternative Approach To The Gravity II: The Non-Abelian 174 Weyl-Yang-Kaluza-Klein Theory Hasan Özgür ÇILDIROĞLU 07OP20 Unified treatment of quantum mechanical phase effects on 174 entangled quantum states İrem ÇEVİK 07OP21 Strong Energy Condition Violation of the Bianchi Type-V 175 Universe Model Khuraman AZİZOVA 07OP22 175 Effect of Magnetic Field Fluctuations on Coronal Waves Kozma ÇUPİ 07OP23 Application of Time-Fractional Logistic Equation on 176 Glioblastoma. Melik Emirhan TUNALIOĞLU 07OP24 Entanglement measures in connection with the geometric phase 176 for a hybrid Aharonov–Casher (AC) setup Merve KOCAMAN 07OP25 An Econophysics Application to the portfolio optimization for 177 BIST 100 Mesut KAVAL 07OP26 177 Basic Concepts of Nonlinear Dynamical Systems Mücahit KUZ 07OP27 178 Spectroscopic Study of DG Mic and V1041 Sco Özlem EKİNCİ 07OP28 178 TESS Photometry of an oEA star: UZ Sge Özlem EKİNCİ 07OP29 An Algol Type Eclipsing Binary Observed by The TESS 179 Satellite: V959 Per Semiha TOMBULOĞLU 07OP30 179 Discrete Rogue Waves in Complex Cubic Volterra Equation Sevda SALTIK 07OP31 Determination of Magnetic Properties with Artificial Neural 180 Networks Şahinde KESGİN 07OP32 Effect of Markovian and Non-Markovian Regimes on Heat 180 Flux

20

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Tobiasz GALL 07OP33 Searching for Candidate Eclipsing Binary Delta Scuti stars in 181 the TESS field Ülkər RÜSTƏM 07OP34 Determination of the fundamental parameters of giant stars of 181 several F and G spectral classes Ümit AKINCI 07OP35 Magnetocaloric properties of the low dimensional magnetic 182 systems

21

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Medical Physics and Applications

Ali Hussain Mohammad Ali 08OP1 A Study for Mass Attenuation Coefficients of Different Parts of 184 the Human Body Through Monte Carlo Method Dilek DUZGUN ERGUN 08OP2 Regulation of the 2100 MHz mobile phone induced DNA 185 methylation by selenium in 3T3 fibroblast cells Duygu TARHAN 08OP3 Effects of Zinc and Medium Osmolality on A549 Cancer Cell 186 Line Esil KARA 08OP4 Physical and Dosimetric Characteristic Properties of BeO OSL 187 for clinical dosimetric measurements Hacer DAŞGIN 08OP5 Default-Mode Network Alterations in Correlation with 188 Depression Scores in Pediatric SLE Patients Özlem YILDIRIM 08OP6 Calculation of Stomach Wall Doses for Patients with 189 Hepatocellular Carcinoma using Monte Carlo Simulations Türkan ALKAN ÖZBAY 08OP7 190 The impact of COVID-19 on Radiology Professionals Yenal GÖKPEK 08OP8 The Effects of Temperature and Laser Power on Rb 191 Polarization for Hyperpolarizer Xenon-129 MRI

22

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Nuclear Physics

Abbas Alpaslan KOÇER 09OP1 A Study on the Effect of Natural Ventilation on Indoor 193 Atmospheric Radon Concentration Abbas Alpaslan KOÇER 09OP2 193 IRL Radon Monitoring System Ayşe BAT 09OP3 Simulation Studies of Particle Radiation Shielding with 194 Gd2O3 Doped Borate Glasses Berk DÜZEN 09OP4 Radiation Detection and Measurement with Drone for 194 Emergency Situations within CBRN Burak AKBIYIK 09OP5 Simulation of Charged Particle Reaction Cross Section 195 Measurement with Activation Method Elif ERMİŞ 09OP6 Obtaining 137Cs Gamma Spectrum by means of Multi-Pixel 195 Photon Counter Elif KEMAH 09OP7 196 On the Ground-State Magnetic Moment of the Barium-137 Elif KEMAH 09OP8 The Comparison of the Low-Lying Dipole States in the 196 N=144 nuclei Esra UYAR 09OP9 Evaluating the Performance of n-type HPGe Detector 197 Modeled as Sharp and Rounded Edge Using PHITS MC Esra YÜKSEL 09OP10 Study of central depression in nucleonic densities using the 198 self-consistent mean-field models Gamze HOŞGÖR 09OP11 198 A theoretical study of Giant Dipole Resonance in 159Tb* Gamze HOŞGÖR 09OP12 199 Magnetic Properties of the odd-mass 155-159Tb nuclei* Gülper AKSOY 09OP13 Modelling of Marinelli Beaker Source in HPGe Detectors by 199 Monte Carlo Simulation Haris Dapo New Gamma-Spectroscopy Setup for Nuclear Resonance 09OP14 200 Fluorescence at Turkish Accelerator and Radiation Laboratory Haşim Zahid GÜVEN 09OP15 Investigating the First Order Phase Transition Parameters 201 with GW170817 23

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Hatice YILMAZ ALAN 09OP16 Deep Learning Approach To Calculation Of Cosmic 201 Radiation Dose For Aircrew Nedime İrem ELEK 09OP17 202 Variation of Indoor Radon Concentration Levels With Height Nihal BÜYÜKÇİZMECİ 09OP18 202 Hyper nuclei formation in relativistic ion collisions Pelin OTANSEV 09OP19 203 Natural radioactivity in agricultural products Rohullah ALEMY 09OP20 The resolution, energy and efficiency calibration for a NaI 203 (Tl) detector Şeyma DENİZ 09OP21 Virtual Nuclear Physics Laboratory: Experiments with the 204 Geiger-Müller Detector Tuğba ÇEPNİ 09OP22 Tuable, Active Band-Stop Filter Design for Penning-Trap 204 Experiment Frequency Measurements Victor CIUPINA 09OP23 Synthesis and characterization of some C-Ti based multilayer 205 and composite nanostructures Zehra Merve CİNAN Influences of Energy Dependent Woods-Saxon Potential and 09OP24 206 Coupled Channel Model in Heavy-Ion Fusion Reactions: Setting the Theoretical Background of 111-In Radionuclide

24

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Physics Education and Applications

Betül Şeyma YELTEKİN ATAR 10OP1 A Comparison of High School Students’ Graph Usage Skills 208 According to Gender Burak TEKİN 10OP2 Evaluation of Some Physics Concepts in Terms of Aristotle, 208 Ibni Sina and Modern Physics Elif YALVAÇ ERTUĞRUL 10OP3 209 Physics Teachers' Views on Formative Assessment Hayati TARHAN 10OP4 210 Distance Physics Education Sevim BEZEN 10OP5 Determining Pre-Service Teachers’ Comprehension Levels of 210 Some Basic Concepts in Atom Physics Course Zeynep GÜREL 10OP6 Wilderness Ontology in the Physics in Nature Course – in the 211 twilight of Deleuze and Guattari Philosophy

25

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

The poster presentations are arranged in alphabetical order according to the conference topics and then the name of the presenters.

26

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations

Atomic and Molecular Physics

Aslı GENÇASLAN 01PP1 213 SERS Applications of Group 4 Metal Nitrides Cansu ÖZKAYA 01PP2 Fabrication of Calix[4]arene Langmuir-Blodgett Thin Film 214 Sensor for the detection of Volatile Organic Vapors Özlem BAYAL 01PP3 Research and Application of Characteristics of Dislocation in 215 GaN /AlN/AlGaN high electron mobility transistors Rifat ÇAPAN Characterization of spun PMMA Thin Films and Metal Organic 01PP4 216 Framework Embedded PMMA Thin Films via Surface Plasmon Resonance Spectroscopy Rifat ÇAPAN Gas sensing abilities of 2-[(2R)-2-Hydroxy-3-[[(1R,2S)-2- 01PP5 217 hydroxyindan-1-yl]-amino]propyl] isoindoline-1,3-dione thin film against organic vapors Sadun KÜÇÜK Theoretical EPR Hyperfine Coupling Constants of Cation and 01PP6 218 Anion Radicals of Pyrazine, Quinoxaline and Phenazine DI-N- Oxides Samet ÖZGÜR 01PP7 A Density Functional Theory Study On Nonlinear Optical 218 Properties of LinBr (n = 2-8) Clusters. Selda ÖZAY 01PP8 219 Stark Effect in Momentum Space Sinem GÜRKAN AYDIN 01PP9 Geometric Analysis of The Polyphenol Antioxidant 219 Kaemphenol Taner Tarık AYTAŞ 01PP10 220 Spectral tuning of SERS enhancement with Graphene

27

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Applied Physics

Berk Alperen BENER 02PP1 A Quantum Random Number Generator Design Using 222 Radioactive Decay of Americium-241 Burcu CEVİZCİ 02PP2 Investigation of Magnetic and Mechanical Properties of Nano 223 Y2O3 doped Bismuth Based Superconducting Materials Ebru ÖZKARA 02PP3 Preparation of self-cleaning surfaces with lotus effect by sol- 223 gel method Gamze KÖŞE 02PP4 224 Microencapsulation of antibacterial essential oils İkbal Yaren POLAT 02PP5 Production and Characterization Of Graphene Nanoplatelet 225 Doped Hydroxyapatite Powder Kübra KURT 02PP6 Effect of Hematite/Magnetite and Boron Carbide on radiation 226 attenuation Mayil TAGİYEV 02PP7 Influence of γ-radiation on the electrical properties of extruded 227 samples of solid solution Bi85Sb15 ‹Pb› Metin Davut ERSAN 02PP8 227 Preparation of graphene-doped epoxy composites Mustafa YILMAZ 02PP9 Simulation of the Doping Process in Semiconductor 228 Fabrication Nuriye KALKMAZ 02PP10 Production of Kitosan and Nanoclay Added Biodegradable 229 Plastics Nursaç KURT 02PP11 Prediction of total fouling resistance of a marine heat exchanger 229 using ANFIS method Sadettin Berkay ŞARLI 02PP12 230 Porous Silicon Based Direct Methanol Fuel Cell Sarp ALGAN 02PP13 Comparison of Classical and Quantum Support Vector 230 Machines for Classification Sinan TEMEL 02PP14 An application of PVA-zeolite composite films as packaging 231 material Sinan TEMEL 02PP15 Investigation of nano SiO2 effect on Starch-PVA 231 nanocomposite films 28

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Condensed Matter Physics

Ece Kutlu NARİN 03PP1 ZnO Growths in O2/O3 Atmosphere by Ultrasonic Spray 233 Chemical Vapor Deposition Method Esra BALCI 03PP2 Structural and Optical Properties of ZnSe Thin Film Growth by 233 Sputtering Technique Mehmet YILMAZ 03PP3 A Non-Carcinogenic Additive for Improving the Ionizing 234 Radiation Shielding Performance of Epoxy: Silver Microparticles Meltem BABAYİĞİT CİNALİ 03PP4 Optical and electrochromic properties of graphitic layers for the 234 usage as electrode material in electrochromic coatings/devices Meltem BABAYİĞİT CİNALİ 03PP5 235 Optical and electrochromic properties of LiCoO2 thin films Meltem YAYLA Determination of Structural and Electrical Properties of ZnO 03PP6 236 Thin Films Grown by Mist-CVD Method on Sapphire with Different Orientations Murat ÇALIŞKAN 03PP7 Ag Doped Single Crystal and Σ3(111) Grain Boundry CdTe 237 structure Mustafa ESEN Investigation of Raman and optical properties of carbon thin films 03PP8 237 produced by, controlled discharge of generated voltage via variable resistor, in the ECR production method Nijat SHUKUROV 03PP9 Performance of Intrinsic BC nanolayer for the adsorption of 238 dopamine and 5-fluoroacil(5Fu): A DFT study Pınar KAYA 03PP10 238 Adsorption of Glycine on the AsP Monolayer Surface Polat NARİN 03PP11 A first Principle Calculations of Monolayer InSe impurity with 239 Pd, Pt, Ag, and Au

Polat NARİN 03PP12 Structural and Optical Properties of ZnO Nanoplatelet Structure 240 Grown by Mist-CVD Tugce HAN 03PP13 DFT Investigation of Electronic and Optical Properties of Silver 240 Doped Germanene 29

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Ünsal AKDERE 03PP14 Hypernetted-Chain Theory Of Liquid α-Al2O3: Preliminary 241 Results Vildan BİLGİN 03PP15 Ultrasonically spray deposited tin-doped indium oxide thin films 242 for photovoltaic solar cell application Vildan BİLGİN 03PP16 Ultrasonically sprayed Ag doped SnS films: Optical, structural 243 and morphological properties Vildan BİLGİN 03PP17 Ultrasonic spray pyrolysed tin sulfide films: effect of spraying 244 solution flow rate

30

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

High Energy, Particle and Plasma Physics

Latif ÇİTE 05PP1 A Study and Design of a Beam Dump Unit for a 40MeV Linear 246 Accelerator

31

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Material Science and Applications

Atilla EVCİN 06PP1 Preparation of Barium Bentonite for Potential Uses in 248 Radiation Shielding Applications Irmak BALMUMCU 06PP2 First-principles studies on structural and elastic properties 248 Pd2CoTl Irmak BALMUMCU 06PP3 Density Functional Theory of electronic and magnetic 249 properties of Pd2CrBi Mehmet Hanifi KEBİROĞLU 06PP4 An X-ray diffraction study on zinc aluminate spinels doped 249 with Ni Mehmet Hanifi KEBİROĞLU 06PP5 The effect of yttrium content on the formation of yttrium oxide 250 in zinc aluminate spinels Mehmet YILMAZ Investigation of the structure of sodium alginate 06PP6 251 (SA)/Bifidobacterium animalis subsp. lactis BB-12 probiotic biohybrid films Serdar ACAR 06PP7 The effects of Pr and Ce addition on the linear absorption 252 coefficient of hydroxyapatite Serdar ACAR 06PP8 A theoretical study on the calculation of the bandgap of Pr and 252 Ce co-doped hydroxyapatites Turan İNCE 06PP9 The theoretical calculations of the bandgaps for Cu-free and 253 Cu-doped ZnO structures Turan İNCE 06PP10 Investigation of structure and morphology of SrO 253 structures produced at various temperatures Yeliz GÜLEŞCİ KARTAL 06PP10 Half-Metallic Band Gap Calculations on new Ti2RhTl 254 compound

32

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Mathematical Physics, Astrophysics and Applications

Özlem KIRMIZITAŞ 07PP1 Discovery of new single A/F type pulsating stars from TESS 256 field

33

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Medical Physics and Applications

Duygu NUHOĞLU 08PP1 Development of Gas-Phase Separation With Micro Gas 258 Chromatography (µGC) Şeyma PARLATAN 08PP2 Investigation of Red Blood Cell Oxygenation in Paroxysmal 259 Nocturnal Hemoglobinuria Using Raman Spectroscopy Taylan YILDIRIM Comparison of Measurements Made with Classic Quality 08PP3 261 Control Techniques Applied in Modern Linear Accelerts and Measurements Made with SNC Arccheck Device Yusuf Levent ERTOKTAŞ 08PP4 The Effect of Bismuth Shields Used to Reduce Patient Dose in 261 Computed Tomography on Patient Dosage and Image Quality

34

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Nuclear Physics

Mehmet YILMAZ 09PP1 Investigation of Equiatomic Palladium-Ruthenium (Pd-Ru) 263 Nanoparticles by Simulations

35

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Invited Speakers

36

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NEXT GENERATION SOLAR CELLS

BULENT G. AKINOGLU

The history of solar cells development is over 50-years. There are many different devices and technologies studied and interestingly it is still hot research topic. The physical mechanisms involved in photovoltaic processes are rather fundamental but the characterization and related researches seem confusing and lead to misleading argumentation. The photovoltaic devices are classified as first, second- and third- generation to highlight the development history of diverse photovoltaic device physics technologies. This classification seems to be clarified especially for the recent developments. In the third-generation which may be referred as the next generation solar cells, there are many different applications and they should be clearly classified. Concluding remarks will be given.

37

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MOLECULAR NANOSYSTEMS AT INTERFACES

JOHANNES V. BARTH, PHYSICS-DEPARTMENT, TECHNİCAL UNİVERSİTY OF MUNİCH, GERMANY -- WWW.E20.PH.TUM.DE

[email protected]

The utilization and organization of molecular species is an important issue for advancing nanoscale science and underpins the development of novel functional materials. To this end we explore molecular bonding and assembly at well-defined homogenous surfaces, textured templates, nanoelectrodes and 2D-sheet layers. The developed bottom-up fabrication protocols employ tailored building blocks and exploit both supramolecular engineering and on-surface covalent synthesis. Structure formation, chemical conversions, electronic and other characteristics are addressed by a multitechnique experimental approach, whereby scanning probe microscopy provides molecular-level insights that are frequently rationalised with the help of computational modeling. We work toward a rationale for the control of single molecular units and the design of nanoarchitectures with distinct functional properties.

38

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ANISOTROPY CONTROL IN PHOTOELECTRON SPECTRA: A COHERENT TWO-PULSE INTERFERENCE STRATEGY

R. CHAMAKHI (UNIVERSITY OF TUNIS EL MANAR), M. TELMINI, O. ATABEK, AND E. CHARRON

[email protected]

Coherence among rotational ion channels during photoionization is exploited to control the anisotropy of the resulting photoelectron angular distributions at specific photoelectron energies. The strategy refers to a robust and single parameter control using two ultrashort light pulses delayed in time. The first pulse prepares a superposition of a few ion rotational states, whereas the second pulse serves as a probe that gives access to a control of the molecular asymmetry parameter β for individual rotational channels. This is achieved by tuning the time delay between the pulses, leading to channel interferences that can be turned from constructive to destructive. The illustrative example is the + ionization of the E(1g ) state of Li2. Quantum wave-packet evolutions are conducted including both electronic and nuclear degrees of freedom to reach angle-resolved photoelectron spectra. A simple interference model based on coherent phase accumulation during the field-free dynamics between the two pulses is precisely exploited to control the photoelectron angular distributions from almost isotropic to marked anisotropic.

39

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EMPIRICAL APPROACH TO NUCLEAR STRUCTURE: P-N INTERACTIONS AND NEUTRON-CAPTURE CROSS SECTIONS

R. B. CAKIRLI (İSTANBUL UNIVERSITY)

[email protected]

The talk will first cover a general overview on nuclear structural evolution and understanding critical proton-neutron interactions using empirical nuclear masses/binding energies. Later, again considering the importance of nuclear masses, a recent study will be discussed in which it is possible to predict neutron capture cross sections from empirical nuclear masses using a simple correlation. Finally, noticable effects on a well- known phase/shape transition region using this simple method will be presented.

40

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EMERGING FIELD OF COLLOIDAL QUANTUM WELLS OPTOELECTRONICS: PUSHING THE LIMITS

H. V. DEMİR (BILKENT UNIVERSITY UNAM TURKEY AND NTU SINGAPORE)

[email protected], [email protected], [email protected]

Semiconductor nanocrystals have attracted great interest for color conversion and enrichment in quality lighting and displays. These span a variety of types and structures from colloidal quantum dots to the latest family of nanocrystals, the atomically-flat colloidal quantum wells (CQWs). In this talk, we will introduce the emerging field of semiconductor nanocrystal optoelectronics employing tightly-confined, quasi-2-dimensional CQWs, also popularly nick-named ‘nanoplatelets’ with recent examples of their photonic structures and optoelectronic devices. Different demonstrations, which will be presented in this talk, using these CQWs include record high optical gain coefficients, gain thresholds at the level of sub-single exciton population per CQW on the average, ultrathin optical gain media and lasers, record high-efficiency colloidal LEDs utilizing the CQWs as the electrically-driven active emitter layer, and record low-threshold solution lasers using the same CQWs employed as the optically-pumped fluidic gain medium.

41

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COHERENT CONTROL OF ULTRACOLD MOLECULAR DYNAMİC: FORMATİON AND SCATTERİNG

A. DEVOLDER UNİVERSİTY OF TORONTO

[email protected]

The ultracold molecules are promising for many applications: quantum computation, quantum simulation, high-precision experiments or ultracold chemistry. The first challenge is their formation. One of the main strategies is by assembling two ultracold atoms. The chemical bond can be created via the use of different laser pulse methods (chirped pulses, pi-pulses and STIRAP), and it is illustrated with the formation of RbSr molecules, for which magnetic methods are currently inaccessible. The pros and cons of each method are presented.

A second challenge is the scattering between ultracold molecules. The inelastic and reactive scatterings can induce the escape of molecules from the trap and limit their use in quantum information. A way for controlling these scatterings is by preparing superpositions of molecular states. In this way, complete destructive interference can be induced. The scattering between ultracold oxygen molecules is illustrated as example.

42

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MULTIMODALITY IMAGING TECHNIQUES IN MEDICAL PHYSICS

H. ERKOL (BOĞAZİÇİ UNIVERSITY)

[email protected]

Medical imaging is very important to study biological processes within tissue since it can provide valuable functional/molecular information about the cancerous tissue. Medical imaging can be divided into two main categories based on its sensitivity; anatomical and functional/molecular imaging. In this work, the physical phenomena behind the functional imaging techniques are explained in detail. The physical modeling of photon propagation and heat transport due to the laser illumination within tissue is introduced based on analytical and numerical approaches. The combination of the analytical and the numerical methods is applied to medical imaging techniques. The validation of the method is presented with the numerical and the experimental studies. It is shown that the analytical based algorithm presented by this work decreases the computational time considerably in image reconstruction, which is very important for real time imaging applications.

43

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STUDENTS’ ACHIEVEMENT AND MISCONCEPTIONS IN PHYSICS: WHAT THEY REALLY MEAN AND WHAT WE REALLY MEASURE?

A. ERYILMAZ (MIDDLE EAST TECHNICAL UNIVERSITY),

[email protected]

The presentation will start with what students’ achievement and misconceptions in physics are, what are the common practices of professors in universities and what we should do to measure them? It continues with how to increase reliability, validity, and usability of the measuring tools. Finally, it concludes with some examples from physics education literature? In this journey we will emphasize the importance of what to ask, how to ask, what types of question (True-False, fill in the blank, matching, multiple choice, open and close ended essay…) should we use as well as asking what, why, and to what extent students are sure about their answers. These will help us make sure what we really are measuring, what are false positive, false negative, and tolerance in our measurements.

44

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

BUILDING AND INVESTIGATING MAGNETIC ADATOM CHAINS ON SUPERCONDUCTORS ATOM BY ATOM

EVA LIEBHABER1, LISA RÜTTEN1, GAËL REECHT1, JACOB STEINER2, SEBASTIAN ROHLF3, KAI ROSSNAGEL3, FELIX VON OPPEN2, KATHARINA J. FRANKE1 1 FACHBEREICH PHYSIK, FREIE UNIVERSITÄT BERLIN, 14195 BERLIN, GERMANY 2 DAHLEM CENTER FOR COMPLEX QUANTUM SYSTEMS AND FACHBEREICH PHYSIK, FREIE UNIVERSITÄT BERLIN, 14195 BERLIN, GERMANY 3 INSTITUT FÜR EXPERIMENTELLE UND ANGEWANDTE PHYSIK, CHRISTIAN- ALBRECHTS-UNIVERSITÄT ZU KIEL, 24118 KIEL, GERMANY

Magnetic adatom chains on superconducting substrates are promising platforms for the exploration of magnetic interactions and correlation effects. Moreover, signatures of topological superconductivity and Majorana zero modes have been reported recently. In this talk, I will explain the interactions of magnetic adatoms with a superconductor and how they can be detected at the single-atom level using scanning tunneling spectroscopy. We will then use the STM tip to assemble dimers, trimers and adatom chains all the way to chains as long as 51 atoms. In each step, we track the evolution of the spectroscopic signatures and identify magnetic interactions, hybridization and finally band formation.

45

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DARK MATTER IN THE UNIVERSE

KATHERINE FREESE (UNIVERSITY OF TEXAS, AUSTIN)

[email protected] (corresponding author)

The nature of the dark matter in the Universe is among the longest outstanding problems in all of modern physics. The bulk of the mass in the Universe is thought to consist of a new (as yet unknown) dark matter particle. I'll begin by discussing the evidence for the existence of dark matter in galaxies, and then show how it fits into a big picture of the Universe containing 5% atoms, 25% dark matter, and 70% dark energy. Neutrinos constitute ½% of the content of the Universe and we are nailing down their properties with cosmological data. I will discuss the status of the hunt for dark matter, focusing on a leading candidate: Weakly Interacting Massive Particles (WIMPs), a generic class of particles that are electrically neutral and do not feel the strong force, yet have weak-scale interactions with ordinary matter. I’ll end by showing how stellar kinematics data from the GAIA satellite provides a new approach to test the nature of Dark Matter.

46

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FRONTIERS OF FORCE MICROSCOPY: FROM INTERFACIAL WATER TO SELF-ASSEMBLY OF PROTEINS

R. GARCIA (CSIC)

[email protected]

This contribution addresses some key challenges faced by force microscopy to image with atomic-scale resolution solid-liquid interfaces. The presentation is divided in two sections. The first section is devoted to introduce the capabilities of 3D-AFM imaging to characterize with atomic-scale resolution the interfacial structure of surfaces immersed in aqueous solutions. The instrument has been applied to image the interfacial water organization on graphene, few-layer MoS2 and few-layer WSe2. Those images enable the identification of atomic and molecular species on solid-liquid interfaces. The second section, shows the capabilities of high-speed bimodal AFM to generate maps of biomolecular processes with high-spatial, temporal and mechanical property resolutions. We show mapping the mechanical properties of collagen fibrils formation from the nucleation stage to the fully formed fibrils.

47

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

GRAVITATIONAL WAVE DETECTION WITH ATOMIC SENSORS

P.W.GRAHAM

Gravitational wave observations will be a major part of the future of astronomy, astrophysics, and cosmology. It will be crucial to design detectors to observe as many bands in the gravitational spectrum as possible. I will discuss ways of using atomic techniques (e.g. atomic clocks) to observe gravitational waves in open frequency bands. Together with current detectors, such detectors would allow a large section of the gravitational spectrum to be covered with great scientific impact.

48

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

WHY DOES SELF-ORGANIZATION REDUCE ENTROPY? LESSONS FROM LASER-INDUCED PATTERN FORMATİON

F. ÖMER ILDAY

[email protected]

Self-organization is the spontaneous emergence of an ordered state. Despite its ubiquity, how self-organization reduces entropy remains unclear. Here, we show that a self-organized system can be decomposed into a part that gets ordered and a controlling part that reduces the entropy of the former by mutual information generated from a feedback process. The full system simply evolves to higher entropy, which corresponds to higher feedback gain. This inadvertently reduces the entropy of the organized part. The well-known but unproven gain-maximization principle of mode-locked lasers emerges as a special case. Self-organization is notoriously difficult to direct to a desired pattern. Now, this becomes possible by ensuring that the target pattern has higher gain than the competing patterns. We show that the feedback gain landscape can be reshaped using stimulated symmetry breaking, which we experimentally demonstrate by directing nonlinear laser lithography (Ilday, Nature Photonics, 2013, 2017) to create all Bravais lattices.

49

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

GROWTH OF 2 DIMENSIONAL MATERIALS AND THEIR DEVICE APPLICATIONS

N. KOSKU PERKGOZ ESKISEHIR TECHICAL UNIVERSITY

[email protected]

Since the first experimental demonstration of graphene in 2004, scientific and technological studies on different 2-dimensional (2D) materials have increased exponentially since they exhibit completely different properties from their bulk forms. However, their implementation to practical applications is still limited due to the current difficulties in their production. In our research, we have used chemical vapor deposition (CVD) to address this challenge and realize 2D materials such as graphene, transition metal chalcogenides (MoS2, WS2, MoSe2 and WSe2) and MXenes (Mo2C) where the electronic properties of the grown materials change from metallic to semiconducting. Various process parameters have been optimized for controlled growth of large, uniform and highly crystalline films and flakes of which the properties are identified using optical microscopy, Raman spectroscopy photoluminescence spectroscopy and AFM. Using these 2D materials, we have fabricated their heterostructures and also different devices such as FETs, photodetectors and supercapacitors to reveal their potential for future applications. Since the first experimental demonstration of graphene in 2004, scientific and technological studies on different 2-dimensional (2D) materials have increased exponentially since they exhibit completely different properties from their bulk forms. However, their implementation to practical applications is still limited due to the current difficulties in their production. In our research, we have used chemical vapor deposition (CVD) to address this challenge and realize 2D materials such as graphene, transition metal chalcogenides (MoS2, WS2, MoSe2 and WSe2) and MXenes (Mo2C) where the electronic properties of the grown materials change from metallic to semiconducting. Various process parameters have been optimized for controlled growth of large, uniform and highly crystalline films and flakes of which the properties are identified using optical microscopy, Raman spectroscopy photoluminescence spectroscopy and AFM. Using these 2D materials, we have fabricated their heterostructures and also different devices such as FETs, photodetectors and supercapacitors to reveal their potential for future applications.

50

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FERROELECTRIC THIN FILM BASED DEVICES AND FERROELECTRIC PHASE STABILITY UNDER ELASTIC CLAMPING IN REDUCED DIMENSIONS

BURÇ MISIRLIOĞLU SABANCI UNIVERSITY

[email protected]

Perovskite oxide ferroelectrics have constituted a forthcoming research platform in fundamental studies of spontaneous symmetry breaking phase transitions in solids. From an application perspective, they are studied extensively in thin film form for piezoelectric sensors/actuators, solid-state memory and gate oxides for semiconductor devices such as FeFETs, memristors and spintronics. Out of a number of novelties, a recent activity is on the possible negative capacitance effect in MOSFETs with a ferroelectric gate layer capable of reducing the sub-threshold slope. In this talk, I aim to provide an overview of various devices whose principle of action exploits ferroelectricity and associated functionalities. I will then focus on our experimental and computational findings in resistive switching in metal/ferroelectric/semiconductor stacks followed by ferroelectric tunnel junctions for memory and spintronic applications, citing examples from literature as well. Finally, I will present some results from our work on phase transitions in ferroelectrics when under an elastic constraint.

51

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

UNIFYING THE EARLY-TIME INFLATION WITH LATE-TIME DARK ENERGY: THE CASE OF MODIFIED GRAVITY

S. D. ODINTSOV (ICREA AND SPACE SCIENCE INST., CSIS) BARCELONA, SPAIN

General introduction to various aspects of modified gravity which consistently describes the whole universe evolution is given. Special attention is paid to F(R) gravity. Exponential and log F(R) models unifying inflation with dark energy are presented. Comparison with other models of modified gravity like Gauss-Bonnet modified gravity and F(R) bigravity is made. Some applications are discussed: neutron stars, black holes. The introduction is given at elementary level: for better review of such theories, see S.Nojiri, S.D. odintsov and V.K. Oikonomu, Phys Repts.692(2017) 1-104.

52

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NANOTECHNOLOGY AND PHOTOVOLTAIC ENERGY CONVERSION

ŞENER OKTIK KADIR HAS UNIVERSITY, ISTANBUL TURKEY

[email protected]

Introduction of new and innovative materials, concepts and technologies in photovoltaic energy conversion have been continuous. A diversity has been commonly classified using cost and efficiencies. The first generation (1G) solar cells are based on wafer-based inorganic crystalline silicon materials. The second generation (2G) solar cells utilizes thin film technologies. The third generation (3G) solar cells make the most of low cost thin film deposition process and using abundant nontoxic inorganic and organic thin film materials. The 4th generation (4G) solar cells exploit the 3G technologies and employ novel materials and device designs combining inorganic and organic materials at nanoscale on nonflexible and flexible substrate. In the 1G and the 2G technologies, nanotechnology has a significant potential to be employed for improvements. In the 3G and the 4G technologies, nanotechnology opens up the horizon for novel PV materials, designs and technologies.

Introduction of new and innovative materials, concepts and technologies in photovoltaic energy conversion have been continuous. A diversity has been commonly classified using cost and efficiencies. The first generation (1G) solar cells are based on wafer-based inorganic crystalline silicon materials. The second generation (2G) solar cells utilizes thin film technologies. The third generation (3G) solar cells make the most of low cost thin film deposition process and using abundant nontoxic inorganic and organic thin film materials. The 4th generation (4G) solar cells exploit the 3G technologies and employ novel materials and device designs combining inorganic and organic materials at nanoscale on nonflexible and flexible substrate. In the 1G and the 2G technologies, nanotechnology has a significant potential to be employed for improvements. In the 3G and the 4G technologies, nanotechnology opens up the horizon for novel PV materials, designs and technologies.

53

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MAGNETIC LAYER FORMATION ON A NON-MAGNETIC STAINLESS STEEL SUBSTRATE BY NITROGEN ION IMPLANTATION

O. ÖZTÜRK (İZMİR INSTITUTE OF TECHNOLOGY), Ö. KARATAŞ, and R. DAL

[email protected]

Nitrogen ion beam implantation into austenitic stainless steels at substrate temperatures near 400 ºC, leads to the formation of a high N content phase, known as expanded austenite phase. The expanded phase/layer is found to have ferromagnetic as well as paramagnetic characteristics. In this study, new data corresponding to magnetic nature of the expanded phase formed on austenitic 316 SS by low-energy (0.7 keV), high-flux (2 mA/cm2) nitrogen ion implantation performed for 30, 90 and 240 minutes of processing time, at a fixed temperature near 400 °C is presented. The magnetic techniques by MFM, VSM and MOKE provide strong evidence for the formation of the γN phase with mainly ferromagnetic characteristics. MFM imaging reveals stripe-like domain structures of the nitrogen ion implanted layers. VSM and MOKE analyses display hysteresis loops of the layers. Ferromagnetic structure is linked to large lattice expansions ( ̴ 10 %) due to high nitrogen contents ( ̴ 28 at. %). As an interstitial impurity, nitrogen dilates Fcc lattice of 316 SS i.e. Fe-Fe distance is increased, which strongly influences the magnetic interactions.

54

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE FIRST IMAGE OF A BLACK HOLE

L. REZZOLLA GOETHE UNIVERSITY AND THE EVENT HORIZON TELESCOPE COLLABORATION

I will briefly discuss how the first image of a black hole was obtained by the EHT collaboration. In particular, I will describe the theoretical aspects that have allowed us to model the dynamics of the plasma accreting onto the black hole and how such dynamics was used to generate synthetic black-hole images. I will also illustrate how the comparison between the theoretical images and the observations has allowed us to deduce the presence of a black hole in M87 and to extract information about its properties. Finally, I will describe the lessons we have learned about strong-field gravity and alternatives to black holes.

55

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE ULTIMATE LHC: PHYSICS PROSPECTS AT VERY HIGH LUMINOSITY

S. SEKMEN KYUNGPOOK NATIONAL UNIVERSITY (ON BEHALF OF ATLAS & CMS COLLABORATIONS)

ssekmen@.ch

The High-Luminosity Large Hadron Collider (HL-LHC) is expected to deliver an integrated luminosity of up to 3000fb-1, a factor of ten larger than the nominal LHC value. The resulting unprecedented amount of data promise exciting physics prospects. However, the HL-LHC conditions will also generate a large amount of pileup with up to 200 additional bunch crossings per event, high radiation and beam-induced backgrounds, thus providing extremely challenging experimental conditions. Consequently, detectors will undergo a set of Phase 2 upgrades that will enable optimal data taking in these conditions and open new possibilities for physics studies. This talk will summarize the instrumental upgrades and overview the physics prospects in selected topics in the electroweak, top and Higgs sectors, in particular Higgs self-coupling measurements and HH production. It will also review searches for beyond the standard model physics, in particular those exploring the new detector features, such as searches for long-lived particles.

56

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

“THE STORAGE RING PROTON EDM METHOD WITH THE HYBRID-SYMMETRIC RING AT 10-29 E-CM”

YANNIS K. SEMERTZIDIS (KAIST AND IBS-CAPP), SELCUK HACIOMEROGLU, and ZHANIBEK OMAROV

yannıs@kaıst.ac.kr

EDMs of fundamental particles are particularly sensitive to physics beyond the SM. We present a comprehensive study of the storage ring proton EDM method. Its statistical sensitivity is better than 10-29e-cm and the systematic errors are reduced below that level, with a mass scale reach of 300 TeV. The hybrid-symmetric ring lattice cancels the main systematic error sources, a unique feature among all studied ring lattices. The ideas include storing polarized proton beams with a radial E-field to bend the beams horizontally while focusing is provided by magnetic quadrupoles with alternate polarity. The combination allows the simultaneous storage of clock-wise and counter-clock-wise beams of same nuclei, resulting to the elimination of the dominant systematic error sources. Furthermore, a highly symmetric lattice, reduces the ring sensitivity to a variety systematic error sources by several orders of magnitude, making possible to construct the

57

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EXCITONS IN LEAD HALIDE PEROVSKITES

R. T. SENGER İZMİR INSTITUTE OF TECHNOLOGY

[email protected]

Hybrid organic–inorganic lead halide perovskites have promising properties for photovoltaic and optoelectronic applications. We investigate temperature-dependent photogenerated-carrier-diffusion in single-crystal methylammonium lead iodide microstructures via scanning photocurrent microscopy. We measure an abrupt increase in carrier diffusion lengths across the tetragonal to orthorhombic phase transition reaching 200±50 μm at 80 K. We attribute this finding to the formation and efficient transport of free excitons in the orthorhombic phase. We also perform numerical simulations to analyze the implications of this model. The device simulations support the assumption that mobile excitons, coexisting with free carriers, can dominate photocurrent generation at low temperatures.

58

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TOPOLOGICAL STRUCTURES IN UNIFIED THEORIES

QAISAR SHAFI

A variety of interesting topological objects arise in spontaneously broken unified theories. We will discuss monopoles and strings as well as more complex structures with cosmological implications.

59

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AXION DARK MATTER

PIERRE SIKIVIE

The axion is a hypothetical particle motivated by the strong CP problem of elementary particle physics and by the dark matter problem of cosmology. Cold dark matter axions are naturally produced during the QCD phase transition in the early universe by a process of vacuum realignment. They thermalize later by gravitational self-interactions and form a Bose-Einstein condensate as a result of this thermalization. I'll discuss special properties that may allow us to distinguish axion dark matter from the other dark matter candidates on observational grounds. I'll also discuss various methods to detect axion dark matter directly on Earth, and report on the experimental efforts under way.

60

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TESTING THE STANDARD MODEL IN PRECISION MEASUREMENTS COMPARING SINGLE TRAPPED ANTIPROTONS AND PROTONS

C. SMORRA INSTITUTE OF PHYSICS, JOHANNES GUTENBERG UNIVERSITY AND THE BASE COLLABORATION

[email protected]

Precision measurements on trapped charged particles offer the opportunity to test our current understanding of the fundamental interactions and their symmetries. In particular, precision measurements comparing the fundamental properties of protons and antiprotons provide stringent tests of CPT invariance and the possibility to search for certain dark matter candidates. I will present the results by the BASE collaboration that has provided the most stringent limits on these kind of measurements in the last years. Further, I present the ERC project STEP that targets the improvement of antiproton precision measurements by development of a transportable antiproton reservoir and the development of new precision measurement schemes employing improved cooling techniques. We have recently demonstrated sympathetic cooling of a single trapped protons that is remotely coupled to laser cooled ions via image currents that will ultimately allow cooling protons and antiprotons to below 10 mK temperature.

61

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DEVELOPMENT OF A MODIFIED DETAILED BALANCE MODEL FOR QUANTUM DOT NANOCRYSTAL SOLAR CELLS

M. SAHIN DEPARTMENT OF NANOTECHNOLOGY ENGINEERING ABDULLAH GUL UNIVERSITY

[email protected]

The detailed balance model, developed by Shockley and Queisser to calculate an upper limit for the conversion efficiency of silicon p-n junction solar cells, is also used in the calculation of conversion efficiencies for new-generation nanocrystal solar cells. However, since the model was developed depending only on the band gap energy (Eg) of the electroactive material of solar cells, different materials give the same efficiency values, if they have the same Eg. On the other hand, the modified model includes not only the Eg, but also various parameters such as effective mass and dielectric constant into the calculations via oscillator strength. Thus, different and more realistic efficiency values are obtained for different materials, even if they have the same Eg. The obtained results were compared with the experimental data like open circuit voltage, and it was observed that the results were in a better agreement with experiments than the results of the original model.

62

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NUCLEAR PHYSICS FOR ASTROPHYSICS WITH SMALL AND LARGE ACCELERATORS

L. TRACHE IFIN-HH -MAGURELE, ROMANİA

[email protected]

We know for sometime that nuclear forces and phenomena are the origin of chemical elements in the Universe and are the fuel of the stars. To quantitatively describe the processes involved we need more and better nuclear data. These are being obtained either using direct measurements at small acelerators and reactions at energies close to the ones involved in stars, or through a select number of indirect methods with reactions at much larger energies, which can then be translated in reaction rates at stellar temperatures. I will briefly describe the most usual of the methods, with examples from cases studied in my own group of young nuclear astrophysicists: ion-ion fusion, Coulomb Dissociation, nuclear breakup, transfer reactions, beta-delayed proton-decay, etc. Using IFIN-HH small accelerators & an undergraound laboratory, or radioactive ion beams at international laboratories.

63

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MACHINE LEARNING WITH QUANTUM DYNAMICAL SYSTEMS

HAKAN E. TÜRECİ, SAEED KHAN, GERASIMOS ANGELATOS, FANGJUN HU PRINCETON UNIVERSITY

[email protected]

I will discuss an analog neural network approach to information processing that receives information to be processed as electromagnetic signals and encodes the intermediate state of computation into the natural continuous time evolution of a large interconnected network of non-linear quantum oscillators, which are continuously measured. I will present a proposal for the implementation of this framework with Josephson parametric oscillators and its application to the simultaneous readout of a multi- qubit quantum system. Focusing on potential near-term devices, I will discuss a physical interpretation of the nonlinear processing capabilities of such a processor as a function of its physical parameters. This analog neural network approach appears to suggest a fairly general information processing framework that employs the natural time evolution of a physical system in that it is valid across the classical to quantum crossover of a given device.

64

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PRECISION MASS MEASUREMENTS OF SHORT-LIVED NUCLEI AT HIRFL-CSR

M. WANG INSTİTUTE OF MODERN PHYSİCS, CHİNESE ACADEMY OFSCİENCES

[email protected]

As one of the most fundamental properties of nucleus, nuclear mass data are widely used in many research fields such as nuclear structure and nuclear astrophysics. At present, mass measurement of short-lived nuclei is an important research topic in nuclear physics. However, due to their small production rates and short lifetimes, it is technically challenging to measure their masses accurately. Isochronous mass spectrometry based on storage ring is an effective technique for measuring masses of short-lived nuclei. We established the isochronous mass spectrometry at HIRFL-CSR (Heavy Ion Reserach Facility in Lanzhou, Cooler Storage Ring) and have performed 10 isochronous mass measurement experiments since 2009. In these experiments, we have focused on mass measurements for medium-mass neutron-deficient nuclei. Recent progress and the perspective will be discussed in the conference.

65

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TURNING FORCE MICROSCOPY ON ITS SIDE AND STRUMMING A SINGLE CHEMICAL BOND

A.J. WEYMOUTH (UNIVERSITY OF REGENSBURG), E. RIEGEL, O. GRETZ, and F.J. GIESSIBL

[email protected]

Friction is a complex process that involves energy dissipation via many mechanisms. What is the physical limit of sliding friction? We modified an atomic force microscope so that the tip can oscillate laterally over a surface. By measuring the signal needed to maintain the oscillation, we have direct access to the energy loss as the tip moves back and forth over the surface. At low temperature, we can make use of established techniques to terminate the tip in a well-defined single atom or molecule. We picked up a single CO molecule and brushed it laterally over the carbon-carbon bonds within a small organic molecule (PTCDA). When the CO molecule bends and snaps over a chemical bond, we observe the associated dissipation. We compliment our experimental observations with a molecular force field model. This method is a new tool for understanding energy loss due to friction at the atomic scale.

66

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ORGANIC RADAR ABSORING MATERIALS FOR STEALTH TECHNOLOGY

F. YAKUPHANOGLU FIRAT UNIVERSITY, PHYSICS DEPARTMENT, ELAZIG/TURKEY

[email protected]

The radar absorbing materials based on organic materials have been extensively investigated due to their potential application in stealthy technology. Organic materials such as small compounds, polymers and aromatic compounds are promising for radar absorbing material (RAM). The new tendencies in RAM developments indicate that stealth technology needs to new functional radar absorbing materials. Materials studied in present study are organic materials with the dielectric properties. The dielectric properties of organic materials have been investigated from 200 MHz to 20 GHZ. The radar absorbing properties of organic materials have been analyzed by the real and imaginary parts of complex dielectric constant and reflectivity. The obtained results indicate that the organic materials based polymers and small molecule semiconductor can be used in radar absorbing material applications.

67

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Atomic and Molecular Physics

68

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MECHANISM OF COVID19 THERAPY WITH THALIDOMIDE

ALIYE DEMET DEMIRAG, SEFA CELIK, AYSEN E. OZEL, SEVIM AKYUZ ISTANBUL UNIVERSITY

[email protected]

In this study, possible conformations of the Thalidomide (C13H10N2O4) molecule, which is used to treat cancer and leprosy and has anti-inflammatory properties, were determined using the PM3 technique and the Spartan06 software. The changes in the dihedral angles of the determined conformations were visualized, compared and the most stable conformation was determined by tabulating the calculated molecular energies of selected conformations. The interactions of Thalidomide with the apo/holo forms of COVID-19's main protease enzyme (Mpro) and the SARSCoV-2 spike glycoprotein were evaluated. The ligand-target receptor binding affinities for each target protein were determined and compared. The binding modes, interacted sites, interaction types, and bond lengths were also determined.

TOXICOLOGICAL AND MOLECULAR DOCKING ANALYSES OF ANTICANCER DRUG CLADRIBINE

ALP CAN GÖKDELEN, SEFA CELIK, ALIYE DEMET DEMIRAG, AYSEN E. OZEL, SEVİM AKYÜZ

[email protected]

Cladribine (C 10 H 12 ClN 5 O 3 ) is used as a second-line therapy in the treatment of cancer, especially in patients with B-cell chronic lymphocytic leukemia unresponsive to alkylating agents. Since the determination of the structural properties of a bioactive molecule is necessary to reveal its bioactivity, the conformational preferences of the Cladribine were examined initially. The stable conformations of the Cladribine molecule were investigated using the PM3, a semi-experimental method. The relative energies of the three lowest energy conformers of the Cladribine molecule were computed. The OSIRIS software was used to assess the different physicochemical properties, including its hazardous risk status, of the title molecule. The drug likelihood of the most stable conformation, as well as its potential toxic effects, were calculated as a result of the calculation. Furthermore, molecular docking simulations of Cladribine ligand into DNA and integrin target molecules were performed. The active regions, interaction modes and binding affinities of the ligand-target DNA/protein complexes were determined.

69

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TRANSPORT EFFICIENCY IN LINEAR AND STAR NETWORKS

ARZU KURT BOLU ABANT İZZET BAYSAL UNIVERSITY

[email protected]

We study the quantum transport efficiency of a ten-site system whose site energies are modulated by an external classical noise on the linear and star network topologies for three different site energy configurations ($\Lambda$, ladder, and zigzag). One of the interesting findings of the study is that although the star network has a direct connection between the source and target sites and the linear network is constructed such that the source and the target sites are separated by nine nodes, the transport efficiency on the linear network is higher than that on the star network. We discuss a possible source of this observation in terms of the eigenvalue distribution of the relevant networks.

MOLECULAR DYNAMIC SIMULATIONS OF PNIPAM-CYSTEINE CONJUGATION IN AQUEOUS SOLUTION

BARIŞ UZUN ERAY DALGAKIRAN HASAN TATLIPINAR YILDIZ TECHNICAL UNIVERSITY

[email protected]

Poly(N-isopropylacrylamide) is a well known thermoresponsive polymer which is used in several applications such as biosensors, thin films, micro gels, drug/gene delivery and tissue engineering. Recently, PNIPAM conjugations with other molecules are in interest to gain more control over its lower critical solution temperature (LCST). For this purpose, we used atomistic molecular dynamic simulation for PNIPAM- CRYSTEINE conjugation system in aqueous solution. We study 30-, 40-, 50-, mer length polymers used in two different temperatures, respectively 280 K and 330 K. We focused on local structural behaviour of individual atoms and groups during phase transition.

70

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE MOLECULAR DOCKING STUDY OF PREDNISOLONE INTO DNA AND INTEGRIN

BAYRAM DURAK, SEFA CELİK, ALIYE DEMET DEMİRAG, AYSEN E. OZEL, SEVIM AKYUZ YEDITEPE UNIVERSITY

[email protected]

Prednisolone (C 21 H 28 O 5 ) is a glucocorticoid that induces poptosis by binding to the glucocorticoid receptor and causes hematological cancer cells to die. It is important to determine the conformational characteristics of a bioactive molecule to elucidate its bioactivity. For this reason, firstly the structural preferences of the Prednisolone were investigated. The PM3, a semi-experimental technique, was utilized to search the stable conformations of the Prednisolone molecule. The relative energies of the three lowest- energy conformers of the prednisolone molecule were calculated. The docking simulations were then performed to analyze the interactions of the most stable conformer of Prednisolone with DNA and integrin. The binding modes, ligand-receptor interactions and the binding affinities were determined.

INVESTIGATION OF NEW COUMARIN DERIVED DYE FOR DYE SENSITIVE SOLAR CELLS AND CALCULATION OF ELECTRONIC PROPERTIES

MUTLU GÜNGÖR, BURAK TEKİN, MURAT YILDIZ KARAMANOĞLU MEHMETBEY UNIVERSITY

[email protected]

Atomic modeling and development of naturally occurring coumarin-derived photon sensitive dyes is one of the trending topics in this field. In this study, the geometric optimization of dye molecules, which can be used as dye in dye sensitive solar cells, was carried out using the DFT method, and the optical and electronic properties of these molecules were calculated as B1 B2 and B3 dyes. Then, in order to examine the adhesion properties, bonding geometries and energy values were calculated by calculating the energy exchange interaction values of TiO2 and CP. It is thought that the use of the designed dye molecules as dyestuff in solar cells will guide experimental studies.

71

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF PHOTOELECTROCHEMICAL PROPERTIES OF DTP DERIVED NEW DYES BY DFT THEORETICAL CALCULATION METHOD

BURAK TEKİN, MURAT YILDIZ KARAMANOĞLU MEHMETBEY UNIVERSITY

[email protected]

It is a trending topic for researchers due to low cost optoelectronic devices in which organic dyes are used as photon sensitizers in photoelectrochemical devices. During this study, new DTP-based organic dyes containing completely different electron-rich linker, conjugated donor units and acceptor groups were calculated and optimized for DSSCs using the DFT method. These electron-rich dye types were investigated by theoretical computational methods such as Time Dependent DFT (TD-DFT). In this study, the electrical and opto-electrical properties of different types of dyes were investigated using theoretical parameters such as HOMO, LUMO levels, recombination probabilities over Voc (open circuit voltage) and Jsc (short circuit current). It shows that T1D1 and T1D2 dyes with double donor groups have higher molecular interactions than. DTP-based dyes like the results obtained will provide excellent candidates for future photoelectrochemical applications.

72

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

LANGMUIR-BLODGETT FILM FABRICATION OF CALIX[4]ARENE CONTAINS P-TERT-BUTYL GROUP AND INVESTIGATION OF SENSOR PROPERTIES DURING ADSORPTION AND DIFFUSION PROCESSES

CANSU ÖZKAYAA, RIFAT ÇAPANA, MATEM ERDOĞANA, MEVLÜT BAYRAKCIB, MUSTAFA ÖZMENC, YASER ACIKBAŞD ADEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, UNIVERSITY OF BALIKESIR, BALIKESIR, TURKEY BDEPARTMENT OF BIOENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF KARAMANOĞLU MEHMETBEY, KARAMAN, TURKEY CDEPARTMENT OF CHEMISTRY, FACULTY OF SCIENCE, UNIVERSITY OF SELÇUK, KONYA, TURKEY DDEPARTMENT OF MATERIALS SCIENCE AND NANOTECHNOLOGY ENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF UŞAK

[email protected]

Langmuir properties of 5, 11, 17, 23-Tetra-(tert-butyl)-25, 27-di-(4-aminomethyl pyridine acetamide)-26, 28-dihydroxy calix[4]arene (C4P4T) and 25, 27-di-(4-aminomethyl pyridine acetamide)-26, 28-dihydroxy calix[4]arene (C4P4) molecules at the air-water interface were studied by measuring surface pressures versus limiting surface area. In order to control the fabrication quality, this very well ordered monolayers were deposited onto quartz glass and 50 nm thick gold coated glass substrates for UV-vis and surface plasmon resonance (SPR) studies. The potential application of C4P4T and C4P4 LB thin film sensors were investigated in the nature of intermolecular interactions between LB films and volatile organic compounds (VOCs). The adsorption and diffusion processes of VOCs (acetone, benzene, chloroform, ethyl acetate and methanol) into the LB sensing layers were analysed via Fresnel equations and Fick’s second law. These LB thin film sensor materials exhibit fast response, reversible, sensitive and selective sensor properties.

Keywords: LB thin films, air/water interfaces, calix[4]arenes, SPR, VOCs sensing, diffusion coefficients.

Acknowledgments: The financial support from the Research Foundation of Balıkesir University (Project No: 2018/057) is gratefully acknowledged.

73

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A CASE STUDY FOR EXPLORATION OF IMPLICIT SOLVENT EFFECT BY LINEAR RESPONSE AND STATE-SPECIFIC POLARIZABLE CONTINUUM MODEL: EFFECT OF METHYL SUBSTITUTION IN INDOLE DERIVATIVES ON ABSORPTION AND EMISSION CHARACTERISTICS

ÇAĞLAR KARACA, FEHMİ BARDAK, ETEM KÖSE, AHMET ATAÇ MANISA CELAL BAYAR UNIVERSITY

[email protected]

The absorption-emission solvatochromic and Stoke’s shifts in methyl-substituted indoles have been investigated using the TD-DFT/CAM-B3LYP Linear Response and State- Specific model. Theoretical modeling and experiments have been conducted in acetonitrile, dichloromethane, and cyclohexane solvents to reveal contributions from the polarity effect. A bathochromic shift has been observed for emission spectra in accordance with the calculated Polarizable Continuum Model/State Specific (non-eq) in a polar solvent medium. Experimental solvatochromic shifts have been compared by State-Specific and Linear Response models for emission and absorption energies. Both models are in good agreement with experimental shifts. The State-Specific model has appeared to give remarkably better results for fluorescence emission shifts when compared to Linear Response theory as the solvent polarity increases. The theoretical models also create well-accordant estimates for the solvatochromic shifts dependent on the methyl position in substitution. Furthermore, the experimental absorption band shapes have been modeled using Franck-Condon analysis to reveal the effect of overlapping vibronic band shapes within the dependency to solvent polarity.

74

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SURFACE PLASMA RESONANCE (SPR) SENSORS BASED ON ORGANIC THIN FILMS: NEW APPLICATIONS IN GAS AND VAPOUR SENSING

EBRU YALÇIN, SIBEL ŞEN ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

Surface Plasma Resonance (SPR) Sensors Based on Organic Thin Films: New Applications in Gas and Vapour Sensing Ebru YALÇIN1, Sibel ŞEN2* 1Department of Physics, Graduate Institute, University of Çanakkale Onsekiz Mart, 17020 Çanakkale, Turkey 2,*Department of Physics, Faculty of Sciences and Arts, University of Canakkale Onsekiz Mart, 17020 Çanakkale, Turkey Abstarct Organic thin films are structures obtained by transferring organic materials on to the solid substrates with different methods, in the thickness range of a few to several hundred nanometers. With the enormous progress in organic colloid and polymer chemistry, thousands and thousands of new high-purity organic compounds were synthesized. Organic nanostructures from these materials have emerged as extremely promising structures for producing high- performance gas sensors. Phthalocyanines (Pc), PMMA molecules, especially the calixarenes and so on were extensively investigated to produce chemical gas and vapour sensors using surface plasma resonance (SPR). Accordingly, in this review, we have performed a comprehensive literature survey of the recent researches reported about organic-based nanostructures and their application in gas and vapour sensors.

Keywords: Organic thin films, Atomic force microscopy (AFM), Uv-visible spectroscopy, Surface plasma resonance (SPR), Gas and vapour sensors.

75

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MOLECULAR STRUCTURE AND DOCKING ANALYSIS OF THE FACTOR XA INHIBITOR EDOXABAN

EMRE AVCULAR1, SEFA CELIK2, ALIYE DEMET DEMİRAG3,4, AYSEN E. OZEL2, SEVIM AKYUZ5

1YEDITEPE UNIVERSITY; 2ISTANBUL UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS; 3YEDITEPE UNIVERSITY, VOCATIONAL SCHOOL, INTERNET AND NETWORK TECHNOLOGIES DEPARTMENT; 4ISTANBUL UNIVERSITY, INSTITUTE OF GRADUATE STUDIES IN SCIENCES, 5ISTANBUL KULTUR UNIVERSITY, FACULTY OF SCIENCE AND LETTERS, DEPARTMENT OF PHYSICS

[email protected]

Functions by inhibiting both free and clot-bound factor Xa. The Factor Xa plays significant roles in the coagulation cascade and its inhibitors are of valuable in the treatment of Edoxaban (C24H30ClN7O4S) is an anticoagulant, commonly known as blood thinners that thromboembolic diseases. The conformational analysis of Edoxaban was performed to find its the most stable conformers, in the initial step of this research (using PM3). The obtained most stable conformer was utilized as starting molecular geometry for the docking simulations of the investigated ligand with the target protein Factor Xa. As a result of molecular docking analysis, the amino acid restudies of the target Factor Xa protein, interacted with the Edoxaban and the binding affinity of the ligand to the target protein were determined.

PREDICTION OF TRAJECTORIES OF 2-BODY PROBLEM USING DEEP LEARNING

GÖKHAN İLHAN, ERDİ ATA BLEDA MARMARA UNIVERSITY

[email protected]

High-order Harmonic Generation (HHG) is a non-linear process that produces coherent extreme ultraviolet (EUV) light by focusing an intense femtosecond laser onto a gas target. Both increasing the intensities and pushing the cut-off of the photons emitted in the plateau region has been in the focus of research for decades. One way of achieving such an enhancement is by means of confinement of the target. In the simulations of such systems, the laser intensities should be strong enough to generate high-order harmonics, but weak enough not to damage the confining cage. Such intensities unfortunately leave the target primarily in the initial state, making the analysis of the propagated wave function very difficult. In this study, we introduce a parallel Green’s function method in the framework of time-dependent perturbation theory to extract the information embedded beneath the initial state. The algorithm can easily be implemented on CPU with OpenMP or on GPU with OpenCL/CUDA.

76

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MOLECULAR DOCKING ANALYSIS OF APIXABAN, EFFECTIVE IN THE TREATMENT OF BLOOD CLOTS, WITH THE MAPK P38 TARGET PROTEIN

GÖZDE YILMAZA, SEFA CELIKB, AYSEN E. OZELB, SEVIM AKYUZC AOPTICIANRY PROGRAM, VOCATIONAL SCHOOL, ISTANBUL KULTUR UNIVERSITY; BPHYSICS DEPARTMENT, SCIENCE FACULTY, ISTANBUL UNIVERSITY, CPHYSICS DEPARTMENT, SCIENCE AND LETTERS FACULTY, ISTANBUL KULTUR UNIVERSITY

[email protected]

Apixaban (C25H25N5O4), as an anticoagulant has been shown to be superior to warfarin in preventing stroke and systemic embolism and causes significantly less major bleeding based on large randomized trials. In this study, in the first stage, the most stable conformers of Apixaban molecule were determined by conformational analysis (using PM3). The most stable conformer of the Apixaban with the lowest energy, among its all- possible conformations was used as initial data in molecular docking analysis of the molecule into the target protein. Since P38 Mitogen-activated protein kinase protein (MAPK P38) is an important player in the post-ischemic myocardial apoptotic signal transduction pathway, the interaction mechanisms of Apixaban docked into the MAPK P38 target protein were investigated. The interacting amino acid residues of the target protein with Apixaban, interaction modes, as well as the binding affinity were calculated.

77

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MOLECULAR DOCKING STUDY OF MIDOSTAURIN, AN EFFECTIVE DRUG IN THE TREATMENT OF MYELOID LEUKEMIA

GÖZDE YILMAZA, SEFA CELIKB, AYSEN E. OZELB, SEVIM AKYUZC AOPTICIANRY PROGRAM, VOCATIONAL SCHOOL, ISTANBUL KULTUR UNIVERSITY; BPHYSICS DEPARTMENT, SCIENCE FACULTY, ISTANBUL UNIVERSITY, CPHYSICS DEPARTMENT, SCIENCE AND LETTERS FACULTY, ISTANBUL KULTUR UNIVERSITY

[email protected]

Midostaurin (C35H30N4O4) is a multi-target kinase inhibitor used to treat some types of acute myeloid leukemia in combination with other chemotherapy medicines. Firstly, the structural preferences of the Midostaurin were evaluated due to importance to determine the most stable conformer of a bioactive molecule to elucidate its bioactivity. The conformational analysis of Midostaurin molecule were performed using the PM3, a semi- experimental method. The relative energies of the obtained three lowest energy conformers of the Midostaurin molecule were determined. The Epitermal Growth factor receptor (EGFR) is an integral membrane protein, and its over-expression is associated with the development of a wide variety of tumors. For this reason, EGFR inhibitors can act as anticancer drugs as preventing the growth of EGFR-expressing tumours and improve the patient's condition. To determine the interactions of Midostaurin with EGFR and DNA, and to elucidate its anticancer properties, the docking simulations were performed. The most stable conformer of Midostaurin was docked into DNA and the EGFR tyrosine kinase domain. The binding modes and affinities of the ligand -target receptor complexes were determined.

78

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ENERGIES AND ELECTRIC DIPOLE TRANSITIONS IN QUADRUPLY IONIZED KRYPTON (KR V)

GÜLDEM ÜRER ÖZBİLEN, SELDA ESER, AND BETÜL KARAÇOBAN USTA SAKARYA UYGULAMALI BILIMLER UNIVERSITY

[email protected]

Using the general-purpose relativistic atomic structure package (GRASP) based on a fully relativistic multiconfiguration -Fock (MCDF) method, energies and transition parameters such as wavelengths, transition probabilities (rates), and oscillator strengths for the electric dipole (E1) transitions have been calculated for quadruply ionized krypton (Kr V, Z = 36). The Breit interactions (magnetic interaction between the electrons and retardation effects of the electron-electron interaction) for relativistic effects and quantum electrodynamical (QED) contributions (self-energy and vacuum polarization) besides correlation effects (valence-valence, core-valence and core-core) have been taken into account in calculations. Obtained results have been compared with available theoretical and experimental values in literature to assess the accuracy of the data.

EXTENDED CALCULATIONS OF THE AC III SPECTRUM

GÜLDEM ÜRER ÖZBİLEN, BETÜL KARAÇOBAN USTA, AND SELDA ESER SAKARYA UYGULAMALI BILIMLER UNIVERSITY

[email protected]

We have calculated the lifetimes for ns (n = 8 – 25), nd (n = 6 – 25), ng (n = 5 – 25), ni (n = 7 – 25), np (n = 7 – 25), nf (n = 5 – 25), and nh (n = 6 – 25) configurations and the transition parameters for the electric dipole (E1) transitions between valence excitation levels of doubly ionized actinium (Ac III, Z = 89) using the relativistic Hartree-Fock (HFR) method. We have compared our results with previously reported the available calculations and experiments in literature. Moreover, some new wavelengths, oscillator strengths and transition probabilities of E1 transitions and lifetime values have been obtained using this method. These data for Ac III have been for the first time presented in this work.

79

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MODELED RADICALS OF FAVIPIRAVIR MOLECULE USED IN THE TREATMENT OF COVID 19

HALIL UGUR TASDEMIR, ERCAN TÜRKKAN NECMETTIN ERBAKAN UNIVERSITY

[email protected]

In this study, a molecule called Favipiravir, which is an RNA polymerase inhibitor and has been proven effective against viruses, is discussed. The molecular structure of the Favipiravir molecule has been predicteds using the Density Functional Method (DFT) and B3LYP/6-311++G(d,p) basis set combination. Nuclear Magnetic Resonance (NMR) parameters of the Favipiravir molecule were calculated using the same method and basis set combination. Possible radicals of Favipiravir molecule and Electron Paramagnetic Resonance parameters of these radicals were also calculated using the same method and basis set combination.

LIFETIME ENHANCEMENT OF NONLINEAR ULTRA-FAST PLASMON RESONANCES

HIRA ASIF

[email protected]

The temporal control of nonlinear plasmon resonances has been studied theoretically to fulfill the future challenges concerning their effective employment in the vast applications of the plasmonic industry. The lifetime enhancement of the second harmonic(SH) plasmonic mode supported by AuNP is investigated by interacting it with long-lived quantum objects in the weak coupling regime. The analytical description of the nonlinear plasmonic system is realized in the Heisenberg picture. The coupled plasmonic system is analyzed in two different ways by coupling of, i) SH mode to dark mode ii) SH mode to the quantum emitter (two-level system). The driven-dissipative dynamics are solved through a numerical technique governing the spatial and temporal changes in the second harmonic plasmonic response. Finally, the lifetime enhancement of nonlinear plasmon mode is manifested by performing FDTD simulations for a nonlinear plasmonic system of Au nanoparticles coupled with a long lifetime quantum oscillator.

80

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FOLLOWING ELECTRON IMPACT EXCITATION OF SINGLE 104Rf, 105 Db, 106Sg, 107 Bh, 108 Hs, 109Mt ATOMS O SUBHELL RELATIVISTIC.IONIZATION CROSS SECTIONS BY USING LOTZ’S EQUATIONS*

MAHMUT AYDINOL DICLE UNIVERSITY

[email protected]

Relativistic O shell and five 0i subshells ionization cross sections σrelO and σre.Oi(i = 1,.,5) following electron impact on (104Rf, 105Db,106Sg, 107Bh, 108Hs,109Mt) atoms calculated. By using Lotz's equation in Matlab ionization cross section values obtained for 14 electron impact energy values in first ionization energy to six times ionization energy range for each atom. Lotz’s parameters and special commands used for each of σrelO and of σrelOi of the target atom. Starting all most from ionization threshold values; ionization cross sections are increasing rapidly with electron impact energy E0i. For higher E0i values this increments getting smaller for every 0i subshells. For smaller E0i energy close to threshold all ionization cross sections decrease. For a fixed electron impact energy while Z value increases from 104≤Z≤109; σrelO and σrel.Oi(i = 1,.,5) decrease with Z. Results may help to understand similar findings which obtained from other electron impact excitation of 0i subshells σrel.0i studies for similar atoms.

Keywords: Relativistic Oi subshells ionization σrelOi calculations, Electron impact on single atoms(104≤Z≤109), Lotz’s equations.

Electron Impact Excitatıon of Siıngle Transuranic 93Np to 104Rf ٬٬:A similar work* atoms O Subhell Non-relativıstic.Ionizatıon Cross Sections by Using Lotz’s Equations* presented at Modern trend in Physics , Int. Conf. 01-03 May 2019 Baku State university, Baku Azerbaijanʼʼ҅, www.mtphsics.az.

81

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FOLLOWING ELECTRON IMPACT EXCITATION OF SINGLE (110Ds, 111Rg, 112Cn, 113Uut, 114Fl, 115Uup) ATOMS O SUBHELL RELATIVISTIC.IONIZATION CROSS SECTIONS BY USING LOTZ’S EQUATIONS

MAHMUT AYDINOL DICLE UNIVERSITY

[email protected]

Following electron impact on (110Ds, 111Rg, 112Cn, 113Uut, 114Fl, 115Uup) atoms O shell and five Oi subshells relativistic ionization cross sections σrelO and σrelOi(i = 1,..,5) calculated. By using Lotz's equation in Matlab ionization cross section values obtained for 14 electron impact energy values in first ionization energy to five times ionization energy range for each atom. Lotz’s parameters and special commands used for relativistic.ionization cross sections calculations of Oi subshells of each atom. Starting all most from ionization threshold values; ionization cross sections are increasing rapidly with electron impact energy E0. For higher E0 values this increments getting smaller for every Oi subshells. For smaller E0 energy close to threshold all ionization cross sections decrease. For a fixed electron impact energy while Z value increases from 110≤Z≤115; ionization cross sections decrease with Z. Results may help to understand similar findings which obtained from other electron impact excitation of Oi subshells ionization cross sections studies for similar atoms.

Keywords: Relativistic Oi subshells ionization cross section calculations, Electron impact on single atoms(110≤Z≤115), Lotz’s equations.

82

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STRUCTURAL PROPERTIES AND BIOLOGICAL ACTIVITY PREDICTIONS OF SOME BARBITURATE COMPOUNDS

MERVE İZMIRLI A, B, MUHITTIN AYGÜNC, ERKAN FIRINCID

A İZMIR KATIP ÇELEBI UNIV., FAC. OF ENGR. AND ARCH., DEPART. OF ENGR. SCI’S., B DOKUZ EYLÜL UNIV., THE GRADUATE SCHOOL OF NATRL. AND APP. SCI’S.,C DOKUZ EYLÜL UNIV., FAC. OF SCI., DEPT. OF PHYS., DADNAN MENDERES UNIV., FAC. OF ARTS AND SCI’S., DEPART. OF CHEM. [email protected]

Researchers are paying attention to barbituric acid and its synthetic derivatives because of their unique structural features and pharmaceutical uses. By substituting in the C5 and N1/N3 positions of the barbituric acid ring, various derivatives of barbituric acid were obtained, yielding compounds with a wide range of biological activities, including antibacterial, antioxidant, enzymetyrosinase inhibitors, and selective oxidizing agents for the synthesis of unsymmetrical disulfide [1-2]. Several freely accessible computational tools are currently available via the Internet, based on chemical similarity assessment (ChemProt, SuperPred, SEA, SwissTargetPrediction, and TargetHunter) or machine learning methods (ChemProt and PASS), that predict versatile profiles of drug-like compounds. Among these tools, PASS (prediction of activity spectra for biologically active structures) has the highest sensitivity value [3]. For this reason, PASS was preferred in this study. Firstly, [1,3-dimethyl-5-[(2,6-dimethylphenylamino)-methylene] pyrimidine-2,4,6-trione compound was synthesized according to literature [4]. Its molecular and crystal structure was solved by the single-crystal X-ray diffraction method. The compound crystallizes in the Monoclinic crystal system and its space group is P21/n. Afterward, biological activity estimation studies were performed using PASS online software. Biological activity predictions indicate that CYP2H substrate (Pa: 0.749 and Pi: 0,026), Ubiquinol-cytochrome-c reductase inhibitor (Pa: 0,627 and Pi: 0,096), Nicotinic alpha6beta3beta4alpha5 receptor antagonist (Pa: 0,568 and Pi: 0,085), Kidney function stimulant (Pa:0.55 and Pi: 0.066) and Acylcarnitine hydrolase inhibitor (Pa: 0,524 and Pi: 0,058) activities of the compound. In addition, 14 barbiturate compounds were obtained from “CSD (Cambridge Structural Database)”, biological activity estimates were made using PASS online and the results were compared.

This work was supported by “Scientific Research Project Unit (BAP) of Dokuz Eylül University” (Project No: 2019.KB.FEN.36).

References [1] Stojiljković, I. N., Rančić, M. P., Marinković, A. D., Cvijetić, I. N., & Milčić, M. K. (2021). Assessing the potential of para-donor and para-acceptor substituted 5-benzylidenebarbituric acid derivatives as push–pull electronic systems: Experimental and quantum chemical study. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 253. [2] Yan, Q., Cao, R., Yi, W., Chen, Z., Wen, H., Ma, L., & Song, H. (2009). Inhibitory effects of 5-benzylidene barbiturate derivatives on mushroom tyrosinase and their antibacterial activities. European Journal of Medicinal Chemistry, 44(10), 4235–4243. [3] Murtazalieva, K. A., Druzhilovskiy, D. S., Goel, R. K., Sastry, G. N., & Poroikov, V. V. (2017). How good are publicly available web services that predict bioactivity profiles for drug repurposing?$. SAR and QSAR in Environmental Research, 28(10), 843–862. [4] Neumann, D., M., Cammarata, A., Backes, G., Palmer, G., E., & Jursic, B., S. (2014). Synthesis and antifungal activity of substituted 2,4,6-pyrimidinetrione carbaldehyde hydrazones. Bioorg. Med. Chem., 22(2), 813-826. 83

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SIZE-EXTENSIVE CORRECTED CONFIGURATION INTERACTION POTENTIAL ENERGY CURVES FOR THE GROUND AND EXCITED STATES OF SOME DIATOMIC MOLECULES

MURAT ERTÜRK ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

We have performed various size-extensivity corrections [1-3] to discuss a few examples illustrating the performance of the Coupled-Cluster correction approaches in the calculations of the excited-state of some diatomic molecules. It is shown that the coupled- cluster corrections with noniterative evaluation of connected triples are much better and reliable approximation to the SR- and MR-CISD energy than other correction methods proposed. The SR-CISD, SR-CCSD, SOCI and FCI results have been calculated using the GAMESS program package. Hartree-Fock method is employed to generate molecular orbitals and the HF determinant is selected as the reference in all calculations. All energies given in tables are presented relative to the FCI energies (in mH).

[1] L. Meissner, Chem. Phys. Lett. 263 (1996) 351. [2] L. Meissner, Int. J. Quantum Chem. 108 (2008) 2199. [3] M. Erturk, L. Meissner, Mol. Phys. 113 (2015) 3014.

A GENERALIZED QUANTUM ADDITION CIRCUIT BASED ON QUANTUM FOURIER TRANSFORM

MURAT KURT, AZMI GENÇTEN ONDOKUZ MAYIS UNIVERSITY

[email protected]

Quantum Fourier Transform (QFT) is widely used in some quantum algorithms such as Shor’s factoring algorithm, quantum phase estimation and quantum arithmetic operation algorithms. There exist many QFT based quantum addition algorithms. In these algorithms, there are some shortcomings such as the additions of the different digits of numbers are not possible. In this study, a QFT based quantum addition algorithm was generalized. In this generalization, the expected addition results were obtained for all quantum systems including qubits and qudits without any problem. Therefore, all the shortcomings were eliminated in this generalized algorithm.

84

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COVID-19 MAJOR PROTEASE ENZYME AND SARSCOV-2 SPIKE GLYCOPROTEIN MOLECULAR DOCKING ANALYSIS WITH RUXOLITINIB

SAMET ARSLAN, SEFA CELİK, ALIYE DEMET DEMİRAG, AYSEN E. OZEL, SEVIM AKYUZ YEDITEPE UNIVERSITY

[email protected]

Ruxolitinib (C 17 H 18 N 6 ) is a potent and selective inhibitor of JAK 1 and 2 with anti- inflammatory activity. The possible conformations ofthe ruxolitinib molecules were searched using the PM3 method and the Spartan06 software. The variations in the dihedral angles of the possible conformations of the Ruxolitinib were comparatively investigated. Tabulating the estimated molecular energies of various conformations the most stable conformation were yielded. The interactions of the title molecule with the apo/holo forms of COVID-19`s main protease enzyme (M pro ) and the SARSCoV-2 spike glycoprotein was studied. Each target receptor`s binding affinities were determined and compared. In addition, amino acid residues of the target proteins interacted with the docked Ruxolitinib, interaction types and interactingbond lengths were determined.

ADSORPTION PROPERTIES OF HYDROGEN PEROXIDE MOLECULE ON AG DOPED PANI NANORIBBONS: A DFT STUDY

SERAP SENTURK DALGIC

[email protected]

Hydrogen peroxide (H2O2) is one of the most studied molecules which has great attention during the COVID-19 Pandemic processes. Hydrogen peroxide can prevent the replication of viruses. Moreover. H2O2 is a strong oxidizing agent that has been widely used as a cleaning and disinfectant agent. Experiments and theoretical calculations have shown that carbon-based nanostructures may be candidates for the design of antiviral surfaces. Functionalization of the surfaces can be improved the adsorption of H2O2 molecules. In a recent experimental study, an Ag-doped polyaniline (PANI) composite was synthesized and used as the electrocatalytic sensor for H2O2. Our previous studies have also investigated the adsorption of H2O2 on B- GDY and S-GDY graphdyne surfaces and hydrogen sensitivity on PANI nanoribbons (NRBs). Here, the adsorption properties of H2O2 on Ag-doped armchair PANI-NRBs has been first investigated by density functional theory (DFT) method with Quantum Expresso code. By analysing the MEP surfaces, physicochemical properties, the dopping of the Ag atom has improved the H2O2 molecule adsorption on the pristine AC3N-NRB.

85

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STUDY OF QUANTUM LIQUIDS ACCORDING TO LANDAU THEORY

SEYHAN AYDIN, HASAN TATLIPINAR YILDIZ TEKNIK UNIVERSITY

[email protected]

Consider a neutral atomic system, where at sufficiently high temperatures and low densities every atom moves freely, except for binary scattering. Such a system is called a dilute gas, and all its physical properties can be explained by the kinetic theory of gases. In this system, if the pressure is increased and the temperature is decreased, the system passes from the gas phase to the liquid phase with the 1st type phase transition at certain critical values. Transition occurs because of the increase in the interaction between the particles and the potential energy of the interaction between the particles dominates the kinetic energy of particles. Since this transition is caused by dynamic interactions between particles, the resulting liquid system is called Classical Liquids. If the temperature is lowered further, the system switches to the solid phase by making the 1st type phase transition again. The (_2^3)He and (_2^4)He isotopes do not obey this classical phase transition scheme in nature. According to experimental observations, when the temperature is enough lowered, Helium does not pass into the solid phase but remains in the liquid phase. This is due to the quantum character of Helium atoms. Therefore, these liquids that do not follow the classical scheme are called quantum liquids. Apart from helyum isotopes conduction electrons in metals, semi-metals, and degenerate semiconductors can also be studied as quantum liquids. In this presentation, the basic properties of quantum liquids will be given using the quasi particle approach within the framework of Landau theory.

86

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

VAPOUR SENSING PERFORMANCE OF 4-SULFOCALIX [4] ARENETHIN FILM

SIBEL ŞEN, RIFAT ÇAPAN, GÜLEN TÜRKER ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

This work presents an effort for the fabrication of vapour sensor using spin coated thin films, examining its potential advantages of the Calix[4]arene-4-sulfonic acid, 25,26,27,28- Tetrahydroxycalix[4]arene-5,11,17,23-tetrasulfonic acid (4-Sulfocalix[4]arene) molecule as a thin film material beside their sensing performance. UV-visible spectra were obtained for 4- Sulfocalix[4]arene thin films transferred on solid substrates at five different rotation speeds from 1000 rpm to 5000 rpm. The surface plasmon resonance (SPR) systemwas used to examine the physical properties of spun films as well as to reveal how sensitively they responded to the vapours. The 4-Sulfocalix[4]arene spun thin film was particularly sensitive to chloroform vapour, but was also observed to respond to acetone, methanol, and benzene vapours.

Keywords: Calixarenes, UV-visible spectroscopy, Surface plasmon resonance (SPR), Vapour sensor.

STRUCTURAL, VIBRATIONAL AND ELECTRONIC PROPERTIES OF VALPROIC ACID AND ITS ANALOGS BY DENSITY FUNCTIONAL THEORY: A COMPARATIVE STUDY

TUĞBA GÖCEN INSTITUTE OF SCIENCE OF BULENT ECEVIT UNIVERSITY

[email protected]

A comparative study of structure, energies and spectral analysis of Valproic Acid (2- Propylpentanoic acid) and its analogs (2-Methyl-2-pentenoic acid, 2-Methylpentenoic acid, 2- Methylhexanoic acid, 2-Ethylhexanoic acid, 2-Ethyl-2-methylpentanoic acid, 2- Propylhexanoic acid, 2-Methyl-2-propylpentanoic acid, 2-Butylhexanoic acid) were carried out using density functional theory (DFT) B3LYP method with the 6-311++G(d,p) basis set. The optimized geometric parameters (bond lengths and bond angles) and harmonic vibrational wavenumbers of the molecules in the ground state were calculated. Furthermore, the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels and other related molecular energy values of the molecules were determined using the same level of theoretical calculations. Molecular electrostatic potential (MEP) maps of the investigated molecules were also examined and active sites were determined. Besides, the dipole moment, linear polarizability and first hyperpolarizability values of the molecules were also calculated. All of the calculations were performed by 16W program package.

87

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Applied Physics

88

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HYBRID RECEIVER DESIGN OF A SOLAR CONCENTRATOR FOR A PARABOLIC TROUGH - THE THERMAL PART

AHMET AZGIN, BILGE TUNCEL, BULENT G. AKINOGLU AND RASIT TURAN MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

As the world shifts towards to a greener energy, the solar energy recently and rapidly gains interest globally. The parabolic trough technology is one of them, and its hybridly utilization of thermal power is already known and harnessed in Concentrating Solar Power Thermal systems. Moreover, combination of these systems with photovoltaics has recently become more interested due to its quite possible high initialization costs against its alternatives. In the present work, we are designing a hybrid receiver for a Concentrating Photovoltaic Thermal (CPV/T) system. The hybrid receiver in context is combined with an efficient heat transfer system to effectively cool a mono-crystalline Silicon PV to keep it under 90 ◦C. Several thermal receiver structures and materials are investigated according to their heat transfer performances, and their integration methods are considered. To this end, a prototype of high concentration hybrid thermal-photovoltaic system will be structured and constructed.

FIBER OPTICAL IMAGING VIA COMPRESSED SENSING

AHMET AZGIN, EMRE YUCE MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

Compressive sensing is a novel research area which has drawn a considerable interest from a large variety of disciplines due to its promise for loss of excessive data acquisition [1]. Considering the data storage and data transmission technology rather than slower in rate against the rapidly growing sensor technology, the idea of single pixel camera by using compressive sampling was first proposed by Duarte et al. in 2008 [2]. Single pixel imaging becomes competitive sinceeconomically benefits of Si as it does not longer apply above the visible range. In this work, we constructed a setup consisting of a optican device, and a single pixel Si detector. Illuminating the object with random projections, we were able to reconstruct the image having less data. Moreover, we have simulated that this method can be used to reconstruct 2D images using fiber-optical illuminations.

[1] Eldar, Y. Compressed Sensing. (Cambridge Press, 2012). [2] Duarte, M. F. et al. Single-pixel imaging via compressive sampling. IEEE Signal Process. Mag. 25, 83–91 (2008).

89

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HEAVY DOPED SEMICONDUCTOR IN GRAPHENE SCHOTTKY JUNCTION SOLAR CELL

ALA K. JEHAD, KEMAL KOCABAŞ, METIN YURDDAŞKAL, FETHULLAH GÜNEŞ DOKUZ EYLUL UNIVERSITY

[email protected]

Graphene has become a vital topic in energy harvesting applications due to its outstanding features such as high optical transparency, carrier mobility, flexibility and mechanical strength beside its large surface area. Graphene has been used as a transparent conducting film, active light-harvesting material, transparent electrode and hole-transporting material. In this study graphene/n+-Si Schottky junction solar cell with a top-window structure and active area of 0.11 cm2 has been fabricated using simple techniques without photolithography system. High quality monolayer graphene sheet was synthesized by CVD method, while the back- and front- metal contacts were achieved by thermal evaporation system using Cr, Ag, and Au. Heavily doped n-type silicon was used in order to fabricate graphene/silicon (G/Si) Schottky junction solar cell. The effect of thermal annealing to the transferred graphene sheet and the p-doping of graphene were also investigated. The fabricated solar cell was characterized using IV cell simulator and the quality of graphene sheet was observed by Raman spectroscopy.

EFFECT OF AL DOPING ON THE ELECTROCHROMIC PROPERTIES OF WO3 THIN FILMS

ALI KEMAL MAK, ÖCAL TUNA, NAGIHAN SEZGİN, A. MELIH ÜSTÜN, ŞENER YILMAZ, OSMAN ÖZTÜRK, MEVLÜT KARABULUT GEBZE TEKNIK UNIVERSITY

[email protected]

Effect of Al doping on the structural, optical, and electrochromic properties of WO3 thin films was investigated through X-ray Difraction, X-ray Photoemmision Spectroscopy, Scanning Electron Microscopy, Atomic Forces Microscopy, Optic Transmittance, Spectral Ellipsometry , Cyclic Voltammetry and Chronoamperometry measurements. Undoped and 0.66-4.28% Al doped WO3 films were grown by RF-magnetron sputtering. The WO3:Al films grow in amorphous phase with thicknesses between 113 nm and 124 nm. XPS analysis indicated that tungsten atoms exist as W6+ in both undoped and Al doped WO3 films. The optical transmittance of WO3 films is not affected by the Al doping. Their transparency in the visible range is around 90% while the transmittance in the IR region seems to increase with Al doping. The optical band gap energies increase with Al doping. Variation of the coloration / bleaching times and coloration efficiency of the WO3 films with Al doping was analyzed. The highest optical modulation of 44 % was obtained for 1.5 % Al doped WO3 film at 630 nm.

90

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FABRICATION OF SILICON NANOWIRE ARRAYS BY SILVER- ASSISTED ELECTROLESS ETCHING AND THEIR OPTICAL AND ELECTRICAL PROPERTIES

ALPER ÇETINEL

[email protected]

Silicon nanowires (Si NWs) are of proven importance in such diverse fields as energy production and storage, flexible electronics, and photovoltaics, due to the unique characteristics that emerge from their 1D semiconducting nature and their mechanical properties. The fabrication of Si NWs arrays on n-type Si wafer by Ag-Assisted Electroless Etching by a very simple and low-cost chemical process was reported in this study. The structural, optical, and electrical properties of Si NWs were investigated by Scanning electron microscopy (SEM), photoluminescence spectroscopy, and the van der Pauw method. SEM analysis indicated that Si NWs distributed uniformly and vertically oriented on an n-type Si wafer. The average diameter and length of Si NWs were about 200 nm and 40 µm, respectively. Photoluminescence spectra of all prepared Si NWs showed sharp and broad emission bands located in the red region of the light spectrum at room temperature. The measurements revealed that the PL of the Si NWs follows the quantum confinement model very closely. The current- voltage (I-V) measurements of Si NWs at room temperature (300 K) and in the dark environment revealed that samples exhibited rectifier properties and behaved like a typical p- n junction diode. The combination of electronic and optical properties in the Si NWs may provide a platform for novel optoelectronic devices for energy harvesting, conversion, and biosensing.

TOTAL IONIZING DOSE (TID) AND DISPLACEMENT DAMAGE (DD) ANALYSES WITH CONCEPTUAL SATELLITES OF DIFFERENT SPACE MISSIONS

BUGRA KOCAMAN, MURAT HARMANDALI

[email protected]

Three fundamental effects of space radiation, namely Total Ionizing Dose (TID), Displacement Damage (DD), and Single Event Effects (SEE) threaten the performance of satellite electronics. While SEE emerges from transient phenomena, TID and DD are cumulative effects which can undermine successful space missions. This study presents the TID and DD analyses results for different space mission parameters. For this purpose, conceptual satellites with different shielding (structural material) thicknesses were created. Aluminum (Al) was chosen as shielding material with different thicknesses, such as 0.5, 1, 2, 3, 4, and 5 mm. Then, the analyses were performed with these structural models for different orbit parameters, i.e. Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Orbit (GEO), and Highly Elliptical Orbit (HEO).

91

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CONVOLUTIONAL NEURAL NETWORK FOR SIMPLE IDENTIFICATION AND CHARACTERIZATION OF NANOMATERIALS

CAHIT PERKGÖZ ESKIŞEHIR TECHNICAL UNIVERSITY

[email protected]

Artificial intelligence has provided practical solutions in various fields of science and technology. Convolutional neural network is a subfield of artificial intelligence and has been used for image processing, deep features and physical characteristics of nanomaterials. One of the major drawbacks of neural network-based solutions is the requirement of big data which is usually difficult to obtain considering time consuming and high-cost characterization methods. Such long processes can be surmounted by transfer learning methods using randomly created images, then can be fine-tuned by making use of similar images similar to the original problem. In this study, CNN based neural network is structured to estimate some specific physical characteristics of some nanomaterials including their shapes and thicknesses. Training of the neural network is followed by presenting the results that are attained using the test data.

SPACE WEATHER AND E-NAVIGATION

CANER PENSE1,2 AND BULENT G. AKINOGLU2,3,4 1DEPARTMENT OF ENGINEERING AND NATURAL SCIENCES, BANDIRMA ONYEDI EYLÜL UNIVERSITY, 2EARTH SYSTEM SCIENCE PROGRAM, GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES, MIDDLE EAST TECHNICAL UNIVERSITY, 3CENTRE FOR SOLAR ENERGY RESEARCH AND APPLICATION, MIDDLE EAST TECHNICAL UNIVERSITY, 4DEPARTMENT OF PHYSICS, MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

IMO’s e-Navigation concept will enable the usage of cost-effective and robust high-speed digital communication services to ships and land stations, making terrestrial and space-based networks a critical part of maritime transportation. However, CMEs and Solar Flares can cause critical problems on these communication networks as they interact with the ionosphere and electronics. Nowcasting and forecasting such natural events with high precision will be beneficial as the realization of e-Navigation progresses forward. Therefore, it could be argued that space weather will become increasingly important in the overall safety of ships and the uninterrupted continuum of maritime transportation service in the near future. In this study, the previous work and literature on space weather are reviewed to identify potential problems and issues. The paper concludes with possible remedies and proactive mechanisms to minimize the impacts of space weather on e-Navigation era maritime transportation.

92

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PROPERTIES OF DIFFERENT SIZE LASER CUT MONOCRYSTALLINE SOLAR CELL

ELSEN AYDIN, RASIT TURAN, GENCE BEKTAS, AHMET E. KECECI AND BULENT G. AKINOGLU MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

Monocrystalline solar cells are produced using standard bare silicon wafer. Then, passivated emitter rear contact (PERC) p-type solar cell are produced at the Center for Solar Energy Research and Application (GÜNAM). Using custom made metallization design, three different size laser cut mini solar cells are formed on top of the wafer. The areas of the mini-cells are 5 cm × 2 cm, 5 cm × 3 cm and 5 cm × 4 cm to be used in Concentrating Photovoltaic and Thermal (CPV-T) system. Current- voltage characteristics are measured using solar simulator under one sun in room temperature. In addition, similar measurements are carried out using different cell temperatures under one sun. In this work, we analyzed and discuss the results that are obtained using the physical and electrical properties. The efficiencies of the cells under one sun are rather smaller than the standard efficiency of GÜNAM PERC cells. This is attributed to the metallization effect due to higher number of fingers and wider busbars.

Keywords: Solar energy, PERC, Si cell, CPV-T system, I-V characterization.

A COMPACT WIDEBAND BANDPASS FILTER WITH HEXAGONAL SPLIT RING RESONATORS

FULYA BAĞCI, MÜNIR KÜRŞAT BAYRAM, BARIŞ AKAOĞLU ANKARA UNIVERSITY

[email protected]

Microwave filters have gained more importance as wireless communication is even possible in very rural areas. Wideband operation, low insertion loss, compact size and easy integration with other electronic components are the main desirable features of microwave filters. Electrical size of the microwave filters can be lowered and the performance can be improved by benefiting from the properties of metamaterial-inspired resonators. In this study, a compact wideband bandpass filter is designed by using hexagonal split ring resonators between the microstrip feed lines. A stub is placed at the end of the meander line and the effects of the geometry as well as the size of the stub and other filter components on the performance of the filter are investigated. The optimized structure is fabricated and the simulation results are verified by the measurement results. The measured insertion loss of the designed band pass filter is less than 1 dB and the return loss is greater than 15 dB. Center frequency of the bandpass filter is 2.5 GHz, which shows that the proposed filter is suitable for WiFi/Bluetooth applications. 93

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HOLOGRAPHIC AIRY BEAMS AS GOOD ACCELERATING LIGHT SOURCES FOR ENERGY

GAMZE KAYA ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

Airy beams have extraordinary features such as nondiffracting, self-acceleration, and self- healing due to their internal dynamics. They are much more resistant and stronger against irregularities due to their self-healing, self-acceleration, and non-diffraction properties. Therefore, Airy beams have broad use potential for various applications in optics and photonics. In the study, it is proposed to use Airy beams as a source of directed and concentrated energy with these beam properties. Holographic Airy beams are created with the computer-generated hologram technique on a phase-only spatial light modulator. It is demonstrated that the high potential of Airy beams as good accelerating light sources for a directed and concentrated energy can be widely used in scientific studies.

This work was partially supported by Çanakkale Onsekiz Mart University, The Scientific Research Coordination Unit, Project number: FBA-2021-3488.

94

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THERMO-STRUCTURAL SME STUDY ON QUATERNARY CUAL- BASED HTSMA ALLOYED WITH VANADIUM ELEMENT

OKTAY KARADUMAN1, GÜNEŞ BAŞBAĞ2, İSKENDER ÖZKUL3, CANAN AKSU CANBAY1*, MUSTAFA BOYRAZLI2 FIRAT UNIVERSITY

[email protected]

In this work, Cu-rich quaternary CuAlVMg high temperature shape memory alloy (HTSMA) with an unprecedented alloy composition was fabricated by casting as ingot in an arc melter, cutting small test samples from the obtained ingot alloy, homogenizing of the samples in the high β-phase temperature region and immediate quenching in conventional ice-water, respectively. Differential scanning calorimetry measurements (DSC) were taken at varied heating/cooling rates to obtain the reversible exo/endo martensitic transformation peaks arose on the alloy’s DSC thermograms, since these peaks are the footprints of the shape memory effect property of the produced alloy. The thermodynamical martensitic transformation (MT) temperatures, enthalpy and entropy change values and activation energy parameter of the alloy were all determined by using the obtained DSC peak analyses data. The characteristic forward martensite to austenite MT temperatures were detected at around 390 °C, which put this novel alloy in the category of high temperature shape memory alloys. Also, on DSC cooling the alloy, the backward austenite to martensite MT peaks were seen to be weakened and eventually disappeared because of the residual hypoeutectoid precipitations emerged during DSC heatings at around 500 °C, which hinder the backward transformations. DTA (differential thermal analysis) measurement taken at single heating/cooling rate revealed the thermal response of the alloy at high temperatures observed as compatible with the common behavior of Cu-based alloys. The crystallographic martensite phases of the alloy were determined by performing X-ray diffraction (XRD) test at room temperature.

95

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SIMULATION OF ISOTOPE SEPARATION IN GAS CENTRIFUGE DEVICE

YILMAZ, M.* AND CITE, L.H

[email protected]

In this study a simple gas centrifuge theory is investigated under steady state behavior for UF6, CO2-H2S and N2-O2. It is seen that gas centrifuge process can be used isotope separation and increased possible separation when process is applied some gas pairs and especially useful for the fuel enrichment process for Uranium, Thorium and etc., as enriched nuclear fuels for nuclear power plants.. In the simulation study centrifuge rotation and charge composition of the gas mixture were also calculated to correlate substantial effect on the magnitude of the separation. The self-diffusion of the low molecular gases is larger than gases of heavy molecular weight such as Uranium isotopes. Mole fractions of gases were calculated each point from center to centrifuge wall, graphs of mole fractions of each molecules of the element with a gas are plotted and an animated simulation is presented on a computer screen and also the produced data were recorded to a data file. A graphical user interface is prepared for the required input data, simulation and animation of the isotope separation process. So that any gas mixtures or pure gases can be used to simulate and visualize the separation process of the isotopes real time thanking to the graphical user interface of the presented study. A few outputs for the Uranium enrichment simulation results are given.

Keywords: Isotope Separation, Fuel Enrichment, Nuclear Fuels, Uranium, Thorium, UF6, Simulation.

96

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EXAMINATION OF BEER-LAMBERT LAW BY FRACTIONAL MATHEMATICS

MÜRSEL ŞENA, B, ABDULLAH ENGIN ÇALIKC, HÜSEYIN ŞİRİNC, AHMET ÇİÇEKD AND AHMET BİÇERE AEGEUNIVERSITY, GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCE, PHYSICS DEPARTMENT, BMA-PA MAKINA PARÇALARI ENDÜSTRISI A.Ş., CEGE UNIVERSITY, SCIENCE FACULTY, PHYSICS DEPARTMENT, DMEHMET AKIF ERSOY UNIVERSITY, FACULTY OF ARTS AND SCIENCE, DEPARTMENT OF NANOSCIENCE AND NANOTECHNOLOGY, EMEHMET AKIF ERSOY UNIVERSITY, GÖLHISAR HEALTH SERVICES VOCATIONAL HIGH SCHOOL, OPTICIANRY PROGRAMME

[email protected]

Many physical processes are expressed with standard theoretical models; the passing of light through absorbing materials and the definition of sound levels as decibels can be given as examples. The exponential decrease in the intensity of light passing through a homogeneous absorber with increasing layer thickness is defined by Lambert's Law. The fact that the exponential decrease in the intensity of light passing through an absorber with increasing concentration is defined by Beer’s Law. Beer-Lambert Law is obtained with combining these two laws. In this study, Beer-Lambert's law is redefined using the Caputo fractional derivative. The solution of fractional form of Beer-Lambert’s Law has been obtained in terms of Mittag-Leffler function. The change of intensity of light depending on the absorber material has been investigated experimentally and theoretically. The relationship between experimental and theoretical results that changes depending on the order of fractional derivative has been investigated.

97

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HIGH MOMENT FEB NANOPARTICLES FOR MAGNETIC HYPERTHERMIA

TELEM ŞIMŞEK HACETTEPE UNIVERSITY

[email protected]

Magnetic hyperthermia therapy based on the conversion of electromagnetic energy from an external AC magnetic field to heat by using magnetic nanoparticles. Although the most widely used material in this therapy is iron oxide nanoparticles, their low saturation magnetization lowers their performance. Iron-boride nanoparticles has been reported to be a good material to replace iron oxides [1,2]. However, further studies are needed on the determination of their particle size dependent magnetothermal properties. In this work, we have demonstrated that iron boride (FeB) nanoparticles of high moment can be used efficiently for hyperthermia applications. The nanoparticles are produced by arc- melting of iron and boron chips followed by high-energy surfactant assisted ball-milling of the as-prepared ingot. Characterization of the nanoparticles are done by using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM) and magnetothermal measurements. We successfully produced nanoparticles with saturation magnetization as high as 120 emu/g at room temperature. In addition, we showed that specific absorption rate, which is a figure of merit for hyperthermia efficiency of nanoparticles is around 60 W/g.

[1] M. A. Hamayun et al., JMMM 451, 407(2018) [2] T. Simsek et al., Ceram., 18, 26119(2021)

Acknowledgment: This work was supported by Hacettepe University Scientific Projects Coordination Unit under Grant FHD-2019-18337.

98

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AUTOMATIC IRRIGATION AND FIRE EXTINGUISHING SYSTEM IN GREENHOUSES

UBEYDULLAH AHMED BİRİNCİ1*, ALI YILMAZ2 GIRESUN UNIVERSITY

[email protected]

With the rapid development of today's technology structure, project products that try to simplify life in order to meet the needs of all kinds of social or scientific life that want to keep up with it, aim to make life easier. The purpose of preparing the greenhouse irrigation and fire extinguishing work, which can be controlled automatically with Arduino, is to electronically control the amount of water, humidity value and the fire even if you are far from the greenhouse. With the coding made considering the most productive growing conditions of the crop, the necessary air conditions and soil moisture values in the greenhouse are provided at the most productive rate for the crop. At the same time, with the system we have developed, it makes it possible to extinguish the fire that may occur in the greenhouse environment. In this study, a miniature greenhouse was first built. An irrigation circuit that can be controlled with an ardunio is placed in this greenhouse. A flame sensor was added to the irrigation circuit and software was added to the system to enable the irrigation circuit to be activated during a fire. Thus, thanks to the codes we entered into the control system, a greenhouse was automatically irrigated according to the moisture content of the soil and the most efficient irrigation measures of the material to be grown.

99

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SURFACE PLASMON RESONANCE STUDY OF CALIXARENE LANGMUIR-BLODGETT THIN FILM

Z. ÖZBEK1, R. ÇAPAN2,3 ,S. ŞEN4, M.E. ÖZEL5 1DEPARTMENT OF BIOENGINEERING, FACULTY OF ENGINEERING, ÇANAKKALE ONSEKIZ MART UNIVERSITY ,2DEPARTMENT OF PHYSICS, FACULTY OF ARTS AND SCIENCE, BALIKESIR UNIVERSITY,3 RENEWABLE ENERGY RESEARCH, APPLICATION AND DEVELOPMENT CENTER, BALIKESIR UNIVERSITY, 4DEPARTMENT OF PHYSICS, FACULTY OF ARTS AND SCIENCE, ÇANAKKALE ONSEKIZ MART UNIVERSITY 5VOCATIONAL SCHOOL, IŞIK UNIVERSITY

[email protected]

This study indicates the fabrication of chemical vapour sensors using Langmuir-Blodgett (LB) thin films, definig the thin film properties of calixarene molecule along with a discussion of their sensing performance. Calixarene monolayers at the air/water interface were transferred onto gold coated glass substrates to produce LB thin films that characterized by surface plasmon resonance (SPR) and atomic force microscopy (AFM). Optical parameters (the refractive index and the thickness) for these LB films were determined using SPR data with a suitable fitting program. As evidenced by these characterization methods, high quality and uniform Langmuir monolayers were formed on the water surface and can be transferred onto glass and gold-coated glass substrates with a transfer ratio of over 95%. The gas sensing properties towards the vapours of four volatile organic compounds were also examined by the SPR technique. LB thin films are highly sensitive and selective for chloroform vapour with rapid response and recovery times, demonstrating promise towards future vapour detection applications.

Keywords: Calixarene thin films, Surface Plasmon Resonance, Atomic Force Microscopy, Organic vapour sensors.

100

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Condensed Matter Physics

101

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DETERMINATION OF DIELECTRIC COEFFICIENT BY USING OPTICAL PROPERTIES

AHMET KÜRŞAT BILGILI GAZI UNIVERSITY

[email protected]

In this study, optical and dielectric properties of graded and ingraded InGaN/GaN multi quantum wells (MQWs), grown on sapphire(Al2O3) wafer by Metal Organic Chemical Vapor Deposition (MOCVD) technique, are investigated. In order to notice graded layer effect on characteristics of MQWs some of GaN layers are grown by doping In atoms. Variations in optical and dielectric properties of graded and ingraded films are investigated by and UV-Vis transmission spectras. Interference fringes in transmission spectras of films show that films are grown on sapphire wafer homogeneously. Refraction index, extinction coefficient, dielectric function and forbidden energy band gap of films are determined by Swanepoel envelope method and Tauc method. Real and imaginer dielectric coefficient of the films are calculated by using refraction index and extinction coefficient.

Key words: dielectric, MOCVD, refraction index, GaN, Sapphire.

102

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SOME STRUCTURAL AND THERMAL PROPERTIES OF INGAN/GAN SOLAR CELLS

AHMET KÜRŞAT BILGILI GAZI UNIVERSITY, PHOTONICS RESEARCH AND APPLICATION CENTER, 06500, TEKNIKOKULLAR, ANKARA, TURKEY GAZI UNIVERSITY

[email protected]

Structural properties of InGaN/GaN solar cells (SCs) grown by metal organic chemical vapor deposition (MOCVD) technique are investigated by high resolution X-ray diffraction (HR-XRD) method. It is noticed that a- and c- lattice parameters of the structures showed small differences according to examined (hkl) planes. Fault percentage of the a- and c- lattice parameters are also calculated. It is seen that fault percentage is smaller than %2 for all samples. Investigations have been made for three different samples. Differences in crystal quality caused by growth conditions are seen in all three samples. At the same time, properties such as crystal size, strain and stress are determined. During determination of stress, two different methods including elastic constants, Young module and Poisson’s ratio are used. Results gained from these two methods are compared with each other. Thermal expansion coefficients of InGaN are calculated for (002), (004), (006) and (121) planes for 100 oC temperature difference (300-400 oC). It is seen that peak positions gained from HR-XRD are nearly the same with the ones in database. It can be seen that all these results are in accordance with previous works done by different authors and with real values.

Keywords: InGaN, GaN, Sapphire, Solar Cell, Thermal.

Acknowledgement: This work was supported by Presidency Strategyand Budget Directorate (Grant Number: 2016K121220).

103

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CALCULATION OF RAMAN MODE FREQUENCY AND THE DAMPING CONSTANT (FWHM) AS A FUNCTION OF TEMPERATURE IN [NH2CHNH2+]CD(H2POO)3

ARZU KURT ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

Coordinate polymers have been attracted attention by many researchers due to curious properties such that ferroelectricity, multiferroicity, unique magnetic, dielectric and non- linear optical since beginning of millennium. Formamidinium cadmium hypophosphite perovskites ([NH2CHNH2+]Cd(H2POO)3) is a good member of coordinate polymers and take attention by scientists in last few years cause of potential in optoelectronic and electronic applications. [FA]Cd(H2POO)3 exhibits a phase transition from the space group C2/c (HT phase) to the space group P21/n (LT phase) at 190 K. Temperature dependency of the structural phase transition was investigated in some aspect (like magnetic, dielectric and optical properties) in the literature. The low-temperature (LT) process exhibits the classical Arrhenius-type behaviour, whereas the HT relaxation exhibit glass-like behaviour. Although there are many experimental studies done in order to analyze the structural phase transition in the literature, the dynamics of the phase transition cannot be defined adequately in theoretic manner, yet. In this study, the Raman frequencies and the damping constants (FWHM) of selected mode as a function of temperature was calculated for [FA]Cd(H2POO)3, by using the observed data from the literature. In these calculations, I assume the selected Raman frequencies as an order parameter in the vicinity of phase transition temperature. In these calculations, I used molecular field theory approximation and assumed the selected Raman frequencies as an order parameter close to the phase transition temperature. Full Width Half Maximum (FWHM-damping constant) of the selected Raman modes is calculated by means of the pseudospin-phonon coupled (PS) and the energy fluctuation (EF) models for [FA]Cd(H2POO)3. My results show that the molecular field theory can be used to explain the dynamics of the structural phase transition in coordinate polymers.

This study is supported by Çanakkale Onsekiz Mart University The Scientific Research Coordination Unit, (Project number: FBA-2021-3652).

KEYWORDS: Raman frequency. Pseudospin-phonon coupled (PS) model. Energy fluctuation (EF) model. Phase transition.

104

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PREDICTING MOLECULAR BAND GAPS WITH MACHINE LEARNING USING DECISION TREE AND RANDOM FOREST MODELS

A. EROL, S. D. GUNAY YILDIZ TECHNICAL UNIVERSITY

[email protected]

Research on renewable energy sources is increasing rapidly. Solar energy is the foremost among them. This energy can be converted into electrical energy through solar cells. For this reason, it is very important to find materials with low cost and high efficiency. Experimental and theoretical researches are carried out in this context. The most studied property of solar cells is their band gap. Band gap is the energy required for a valence electron to cross an energy band and become a conduction electron in the conduction band. It varies depending on the molecular composition. In this study, we tried to predict the band gaps of the materials that can be used in solar cells by the machine learning method. Decision tree and random forest models were employed. Pre-generated datasets which contain molecular and atomic features were used to train the models. Models were evaluated via correlation matrix and mean squared error metrics after applying cross- validation.

105

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MECHANICAL AND ELECTRONIC PROPERTIES OF NEW AL4SB3CO COMPOUND

BUGRA YILDIZ AND AYTAC ERKISI HACETTEPE UNIVERSITY

[email protected]

In this study, to obtain the mechanical properties and the electronic and magnetic behavior of Al4S3Co compound, first principles computations within generalized gradient approximation (GGA) have been performed. All the calculations have been done by using Vienna Ab initio Simulation Package. The material is crystalized in simple cubic structure conforming P-43m space group with 216 space number. Firstly, in order to determine most suitable magnetic order, antiferromagnetic (AFM), ferromagnetic (FM) and paramagnetic (PM) phases have been considered. From the plotted energy-volume graphs, this material can be determined as paramagnetic. Then, to understand electronic behavior of our material, spin-polarized electronic band structure with the total (TDOS) and orbital projected partial density of states (PDOS) have been calculated and plotted. From the band structure, it has been understood that Al4Sb3Co has metallic behavior. Also, for all considered magnetic phases, the calculated formation enthalpies of the mentioned material are negative values, so it is structurally synthesizable. Finally, the elastic constants have been calculated and some mechanical properties have been estimated. As result of these estimations, it could be said that this material has mechanical stability and ductility.

106

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECT OF DIFFERENT TYPES AND SIZES OF METAL NANOCLUSTERS ON THE GAS SENSING PROPERTIES OF GRAPHENE

1- ÇAĞIL KADEROĞLU (ANKARA UNIVERSITY) 2- AMIR NASSER SHAMKHALI (MOHAGHEGH ARDABILI UNIVERSITY) 3- ŞINASI ELLIALTIOĞLU (TED UNIVERSITY)

[email protected]

Modifying the graphene surface with metal atoms is one of the most studied methods for gas sensor design in order to improve the sensing and selectivity properties. Ni, Pd and Pt are among the proposed candidate metals. One of the important points of the research is how the type and size of the metal attached to the surface affect the sensor properties of the graphene. For this purpose, the interaction of different-sized Ni/Pd/Pt nanoclusters attached to graphene with CO, NO and H2 was investigated by DFT methods. By determining their structural, electronical and optical properties, usability of these systems for sensor applications were discussed.

Acknowledgement: The study is supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) Grant No: 118F210.

PROBING THE PHONON SPECTRUM OF TWISTED BILAYER GRAPHENE

DILARA ICKECANA*, ERDI ATA BLEDAA, DOGAN ERBAHARB, A) MARMARA UNIVERSITY, DEPARTMENT OF PHYSICS, B) DOGUS UNIVERSITY, FACULTY OF ENGINEERING, DEPARTMENT OF MECHANICAL ENGINEERING

[email protected]

The observation of superconductivity in magic-angle twisted bilayer graphene (TBG) in 2018 has dramatically increased the interest in twisted multilayered materials over the past few years. While the nature of superconductivity observed in TBG is still open to debate, little theoretical work has been performed in the investigation of vibrational characteristics of these materials to support or rebut the conventional theories of superconductivity. This is mainly due to the relatively large cell dimensions of emerging moiré superlattices. Besides, the number of possible twist angles and resulting superlattices is theoretically infinite and even a reasonable limitation imposed on lattice parameter that would be comparable with experimental studies requires thousands of structures to be investigated in the pursuit of a solid theoretical model for identifying the dependence of phonon spectra on moiré patterns. This work directly addresses these challenges by demonstrating an alternative computational approach to the problem. We report our preliminary results and discuss the possibility of identifying emerging patterns by machine learning methods.

107

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF REUSABLE EFFECTS OF NATURAL CALCITE MINERALS ON DOSIMETRIC TRAP DEPTHS

DILEK TOKTAMIŞ GAZIANTEP UNIVERSITY

[email protected]

A trap found in a solid-state radiation dosimetry is characterized by kinetic parameters such as trap depth (Ea), frequency factor (s), kinetic order (b) and carrier concentration (no). Trap depth (Activation energy) is the required energy to release carrier in the trap. In this study, it is investigated that how the dosimetric trap depths of the traps found in the four natural calcite minerals are affected by reusable of them as a dosimeter. All samples were irradiated about 36Gy beta dose and read out by a TLD reader. A computer glow curve deconvolution program(CGCD) was used to get the kinetic parameters. And the results are compared for the four samples.

THE EFFECT OF SERIES RESISTANCE (RS) ON THE C-V AND G/W- V CHARACTERISTICS

ESRA ERBİLEN TANRIKULU GAZI UNIVERSITY

[email protected]

In this study, in order to see the effect of series resistance (Rs) on the high frequency capacitance-voltage (C-V) and conductance-voltage (G/w-V) plots, they were corrected by takin into account Rs effects. The value of Rs can cause a serious error in the extraction both of electric and dielectric parameters especially at high frequencies. Experimental results show that the value of C goes to minimum after a distinctive peak in the forward bias region and its minimum value is corresponding to maximum value of G/w for enough high forward bias voltage. In order to avoid this abnormal behavior, Rs can be minimized by sample fabrication, making measurements at low frequency, and a correction the measured C-V and G/w-V plots before the desired information is extracted. After the correction of the C-V and G/w-V plots, while the value of C increase at accumulation region, G/w decreases with increasing voltage. According to me, Rs can be routed from the back ohmic contact to the semiconductor, the contact made by the probe wire to the gate or rectifier contact, the resistance of bulk of the semiconductor, a dirt film or particulate matter at back contact interface and extremely non-uniform doped atoms in the semiconductor.

108

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STRUCTURAL AND OPTICAL PROPERTIES OF IRON-COBALT CO- DOPED CADMIUM OXIDE THIN FILMS

EMRAH SARICA, IBRAHIM GUNES, BARBAROS DEMIRSELCUK, ESRA KUS, AYSE KUCUKARSLAN AND VILDAN BILGIN BURSA ULUDAG UNIVERSITY

[email protected]

In this work, pure and Fe doped (at 2, 4, 6%) cadmium oxide (CdO) thin films were deposited on microscope glass substrates by Ultrasonic Spray Pyrolysis method and the effect of Fe doping on some physical properties films was examined. Structural and electrical properties of CdO: Fe thin films were investigated by using X-ray diffactometer (XRD) and Hall Effect system, respectively. Some structural parameters such as crystallization levels, preferrential orientation, average crystallite size, dislocation densities, lattice constant and unit cell volume of all films were calculated using XRD patterns. XRD analysis revealed that all films have polycrystalline structure. Some electrical parameters of undoped and Fe-doped CdO thin films such as carrier type and mobility, carrier concentration and electrical conductivity values were calculated. It has been determined that all films have an n-type electrical conductivity.

Acknowledgements: This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the Project Number FBA-2021-3496.

109

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECT OF IRON DOPING ON STRUCTURAL AND ELECTRICAL PROPERTIES OF SPRAY-DEPOSITED CDO THIN FILMS

ESRA KUS, EMRAH SARICA, IBRAHIM GUNES, BARBAROS DEMIRSELCUK, AYSE KUCUKARSLAN AND VILDAN BILGIN BURSA ULUDAG UNIVERSITY

[email protected]

In this work, undoped and Fe-Co co-doped cadmium oxide (CdO) thin films were deposited onto glass substrates by using ultrasonic spray pyrolysis method at substrate temperature of 300⁰C±5. In order to improve the physical properties of CdO thin films for optoelectronic circuits, spintronics and photovoltaic applications, it is aimed to simultaneously include Fe and Co in the structure as doping elements. The spraying solution was prepared by mixing appropriate volumes (0.1 M) of cadmium acetate, iron chloride, and cobalt chloride as sources of Cd, Fe and Co ions respectively. The spraying solution of 150 cc was sprayed for a total of 30 min and the solution flow was kept at 5 cc/min. The effect of Fe-Co co-doping on the optical and structural properties of CdO thin films was investigated. The optical properties of the films such as reflectance, band gap energy, refractive index, extinction coefficients and Urbach parameters were calculated by using the transmittance and absorption spectra taken by using UV-VIS spectrophotometer in order to examine the optical properties of films. The structural parameters of the films such as crystallization levels, grain crystallite sizes and lattice constants were calculated by using XRD patterns taken via x-ray diffractometer. As a result of all these analyzes, it has been determined that the Fe-Co co-doping have effect on the optical and structural properties of CdO thin films.

Acknowledgements: This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the Project Number FBA-2021-3496.

ELECTRONIC, STRUCTURAL AND MAGNETIC PROPERTIES OF CRWBI HALF-HEUSLER ALLOY VIA AB-INITIO METHOD

EVREN GÖRKEM ÖZDEMİR GAZI UNIVERSITY

[email protected]

The ab-initio calculations of CrWBi half-Heusler alloy were investigated by WIEN2k. According to volume-energy optimization curve, the ferromagnetic phase is energetically more stable than non- magnetic phase. Here, the equilibrium lattice parameter of cubic CrWBi half-Heusler alloy is 6.17 Å. Since the spin-down electrons cut the Fermi energy level, these had metallic nature. However, the valance band maximum and conducting band minimum values were obtained as – 0.147 eV and 0.229 eV, respectively in the spin-up states. The spin-up states had semiconducting feature with the total band gap of 0.376 eV. These band gap values confirmed the %100 spin polarization around the Fermi energy level. Furthermore, the total magnetic moment was calculated as 1.00 μB/f.u. Finally, CrWBi half-Heusler alloy is a half-metallic ferromagnet material.

110

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TI AND MG INCORPORATED HIGH TEMPERATURE CU-BASED SHAPE MEMORY ALLOY WITH ESCALATED OPERATION TEMPERATURES

GÜNEŞ BAŞBAĞ1, OKTAY KARADUMAN2, CANAN AKSU CANBAY2*, İSKENDER ÖZKUL3, MUSTAFA BOYRAZLI2 FIRAT UNIVERSITY

[email protected]

Varying industrial demands depending on the application type have been emerging on the utilization of shape memory alloys (SMAs). Such demands can be either reducing the production costs of these unique and versatile smart alloys or improving their performance and modifying their properties, or else. A promising SMA group is Cu-based SMAs. Since, the most commercially used NiTi-based SMAs with superior SMA properties have high costs and hard processing disadvantages, research on Cu-based SMAs (regarded as the closest alternative to NiTi SMAs) has gained importance. Doping the binary or ternary Cu-based shape memory alloys (e.g. CuAlMn, CuAlNi, CuZnAl,…) with one (quaternary) or more elements is one of the much-used method to modify characteristic martensitic phase transformation temperatures (operation temperatures), reduce brittleness, improve ductility, enhance shape memory capacity, superelasticity, damping properties, and so forth. In this work, by adding the minor addition of Ti and Mg elements the quaternary CuAlTiMg high temperature shape memory alloy (HTSMA) was produced by arc melting method. The thermal shape memory effect characterization tests were done by differential calorimetric (DSC and DTA) measurements and analysing the obtained thermograms of the alloy displayed its forward (martensite to austenite) phase transformation occuring at above 350 °C. A microstuctural XRD measurement was performed to reveal the atomic planes of martensite structures formed in the alloy which constitute the shape memory effect property of the fabricated alloy.

111

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE INVESTIGATION OF ELECTRICAL AND DIELECTRIC CHARACTERISTICS OF THE AG/N-SI STRUCTURES WITH MGF2 INTERFACIAL LAYER

HAVVA ELIF LAPA ISPARTA UNIVERSITY OF APPLIED SCIENCES

[email protected]

MgF2 was evaporated on n-Si by magnetic sputter technique. The capacitance-voltage (C-V) and conductance-voltage (G-V) measurements of Ag/MgF2/n-Si structures were taken for the frequency range of 10 kHz-1 MHz at room temperature. The thickness of the MgF2 interfacial layer was calculated as 38.23 nm by means of C-V characteristic for 1 MHz frequency. The series resistance (Rs) values of the structure were calculated by using Nicollian and Brews method. The dielectric constant (ε′), dielectric loss (ε″), and loss tangent (tan δ) values depending on frequency were obtained by using C and G data. It has been observed that the Rs and ε′ values increase with decreasing frequency for ±0.7 V. First, the ε′ and tan δ decreases with increasing frequency for±0.7 V. Then the ε″ and tan δ passes through a minimum and it increases with increasing frequency. According to the findings, Ag/MgF2/n-Si structures are promising for metal-oxide-semiconductor (MOS) capacitor.

STABILITES OF THE SILICON CARBIDE (SIC) THERMOLUMINESCENCE PEAKS IN TERMS OF KINETIC PARAMETERS

HÜSEYIN TOKTAMIŞ, PESHAWA O. HAMA GAZIANTEP UNIVERSITY

[email protected]

Thermoluminescence (TL) is an emission of light from an insulator or wide-bandgap semiconductor that absorbed some energy from a radiation source when it is thermally stimulated. In this study, stabilities of the Silicon Carbide (SiC) thermoluminescence peaks in terms of kinetic parameters were investigated. SiC is the most important wide- bandgap semiconductor material and it is generally used in jet engine ignition systems, aircraft and automotive engine sensors, control systems, and in manufacturing technique quantity. These results put forth the trap depth(activation energy) of dosimetric peak varies between 0.74 and 0.94eV for nine cycles of measurement. And also it varies between 0.6eV and 1.05eV for nine different beta doses.

112

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EXAMINATION OF INTERACTIONS BETWEEN SOME GRAPHENE- LIKE TWO-DIMENSIONAL MXENE MATERIALS WITH NEUROTRANSMITTER MOLECULES AND AMINO ACIDS

IŞIL ILGAZ AYSAN, HANDAN ARKIN OLĞAR, ETHEM AKTÜRK AYDIN ADNAN MENDERES UNIVERSITY

[email protected]

Transition metal carbides include a wide variety of materials with attractive properties that are suitable for numerous and diverse applications including biomedical applications. In this aspect, an important member of transition metal carbides(TMC), molybdenum carbide(Mo2C) has attracted great attention from industrial applications. Accordingly, we have examined the interactions between two-dimensional mono-layer Mo2C and neurotransmitter molecules (glutamate and dopamine) and small amino acids(glycine and serine) by using first principles method. By revealing the details of these interactions, basic information to be used in obtaining "smart surfaces" that can act as biosensors in the biomedical field will be provided. As a result, it would contribute to the design of new sensors that can be used to determine the characteristics of biological systems.

This work was supported by The Scientific and Technological Research Council of Turkey(TUBİTAK) under the Research Project Number:118F508.

113

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SENSOR PROPERTIES OF PLASMONIC GOLD NANOPARTICLES PRODUCED BY PLD

ILHAN CANDAN1*, SERAP YIGIT GEZGIN2, HADICE BUDAK GUMGUM1, HAMDI SUKUR KILIC2 1 DICLE UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS, 2 UNIVERSITY OF SELCUK, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS

[email protected]

The interest in plasmonic metal nanoparticles (NPs), especially Au, is increasing with impressive applications in different fields of analytical chemistry as well as chemical and biological sensing. Metal NPs have been studied for their unique optical properties in the broad spectral range. These particles form a strong surface plasmon resonance (SPR) band in the visible region of the electromagnetic spectrum. There is a strong relationship between the properties of this SPR peak (such as position, density, and width) and factors such as the medium in which the particles are dispersed, the size, the shape of the NP, and the dielectric constant. In the case of localized surface plasmon, light interacts with particles that are much smaller than the wavelength of incident light. This leads to the formation of a locally released plasma around the nanoparticle with a frequency known as Localised Surface Plasmon Resonance (LSPR). The most common method of LSPR detection is the wavelength shift measurement, which is a function of the change in the maximum or minimum of LSPR decay curve, the change in the local dielectric environment is caused by analyte absorption. The sensitivity of the local dielectric environment is associated with the detection of biological molecules such as proteins and antibodies. Thus, metal NPs such as Au can be employed as sensor using LSPR wavelength shift method. In our work, we have produced Au NPs with various size and shape by using pulsed laser deposition (PLD). LSPR peaks of produced NPs are investigated by UV-Vis spectroscopy. Additionally, sensor properties of the produced plasmonic Au NPs are investigated by binging various analytes to the Au NPs.

Keywords: Plasmonic nanoparticles; Gold nanoparticles; LSPR; PLD, Plasmonic sensor.

114

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SENSOR PROPERTIES OF PLASMONIC SILVER NANOPARTICLES PRODUCED BY PLD

ILHAN CANDAN1*, SERAP YIGIT GEZGIN2, HADICE BUDAK GUMGUM1, HAMDI SUKUR KILIC2 1 DICLE UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS, 2 UNIVERSITY OF SELCUK, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS

[email protected]

The interest in plasmonic metal nanoparticles (NPs), especially Ag, is increasing with impressive applications in different fields of analytical chemistry as well as chemical and biological sensing. Metal NPs have been studied for their unique optical properties in the broad spectral range. These particles form a strong surface plasmon resonance (SPR) band in the visible region of the electromagnetic spectrum. There is a strong relationship between the properties of this SPR peak (such as position, density, and width) and factors such as the medium in which the particles are dispersed, the size, the shape of the NP, and the dielectric constant. In the case of localized surface plasmon, light interacts with particles that are much smaller than the wavelength of incident light. This leads to the formation of a locally released plasma around the nanoparticle with a frequency known as Localised Surface Plasmon Resonance (LSPR). The most common method of LSPR detection is the wavelength shift measurement, which is a function of the change in the maximum or minimum of the LSPR decay curve, the change in the local dielectric environment is caused by analyte absorption. The sensitivity of the local dielectric environment is associated with the detection of biological molecules such as proteins and antibodies. Thus, metal NPs such as Ag can be employed as sensor using LSPR wavelength shift method. Although Metal (Au, Cu and Ag) NP's refractive index sensitivity is much higher, this feature is significantly higher for Ag than other metal. Because LSPR peak of Ag is sharper, and thus, it makes the measurements more precise. In our work, we have produced Ag NPs with various size and shape, using pulsed laser deposition (PLD). LSPR peaks of produced NPs are investigated by UV-Vis spectroscopy. Additionally, sensor properties of the produced plasmonic Ag NPs are investigated by binging various analytes to them.

Keywords: Plasmonic nanoparticles; Silver nanoparticles; LSPR; PLD, Plasmonic sensor.

115

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TRIPLET EXCITON IMPROVEMENT VIA GALVINOXYL SPIN RADICAL TO INCREASE THE POWER CONVERSION EFFICIENCY OF PHOTOVOLTAIC CELLS

KEVSER ŞAHIN TIRAŞ NIĞDE ÖMER HALISDEMIR UNIVERSITY

[email protected]

One of the promising candidates of cheap sources of photovoltaic energy is organic solar cells (OSCs), however they are limited by relatively low efficiencies. The absorbed sunlight generates an excited energy state called an exciton. There are two kinds of excitons: singlet and triplet ones. The power conversion efficiency (PCE) of solar cells is limited by the short lifetime of singlet excitons (~ns), as they de-excite quickly and cannot be efficiently converted to electricity. It is desirable to work with triplet excitons to overcome this problem. Their lifetime is much longer (~μs), and they can be converted to electrical current more easily. In this work, we introduce spin ½ radical galvinoxyl blended into the bulk heterojunction photovoltaic device. Our devices show a roughly 30% enhancement in PCE compared to the device without galvinoxyl. Magneto-photocurrent (MPC) measurements were performed on galvinoxyl doped devices to unravel the underlying mechanism for the increase in PCE.

ELECTROMAGNETIC SHIELDING AND ABSORPTION PROPERTIES OF TEXTILE FABRICS COATED WITH CARBON, ZINC OXIDE AND INDIUM WITH ECR SYSTEM AND EVAPORATOR SYSTEM

MUSTAFA ESEN*, MEHMET ESEN**, İLHAMİ İLHAN***, HAMİDE KAVAK**** *ISPARTA UNIVERSITY OF APPLIED SCIENCES, TECHNICAL SCIENCES VOCATIONAL SCHOOL, ,**CUKUROVA UNIVERSITY, ADANA VOCATIONAL SCHOOL, *** , FACULTY OF FINE ARTS DEPARTMENT OF TEXTILE AND FASHION DESIGN, ****CUKUROVA UNIVERSITY,DEPARTMENT OF PHYSICS,

[email protected]

While producing the films with the ECR method, a voltage accumulation occurs in the region where the plasma is deposited, especially on the sample holder. Since the ions in the plasma are charged particles, they interact with this voltage and this interaction affects the film formation. Sudden voltage discharges can cause sudden interactions in the thin film structure, and therefore it is not preferred. In this study, the voltage formed, was discharged in a controlled manner with the help of a variable resistor. The produced samples were examined by Raman and optical methods.

Key words: ECR, bias voltage, controlled discharge.

116

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

OPTICAL AND ELECTROCHROMIC PROPERTIES OF A SELF-LI ION CONTAINING ELECTROCHROMIC COATING/DEVICE

MELTEM BABAYIĞIT CİNALİ, ÖZLEM DUYAR COŞKUN THIN FILM PREPARATION AND CHARACTERIZATION LABORATORY, PHYSICS ENGINEERING DEPARTMENT, HACETTEPE UNIVERSITY

[email protected]

Lithium cobalt oxide (LiCoO2) is one of the most important materials as the ion-conducting layer (electrolyte) of the all-solid-state electrochromic devices due to its electrochemical properties related to intercalation/deintercalation of Li+ ions. In this study, LiCoO2 thin films were deposited on glass substrates using radio frequency (RF) magnetron sputtering method. Optical and electrochromic properties of these films were measured.

Acknowledgments: This work is supported by the research grant of the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the Project number 118F070.

INVESTIGATION OF RAMAN AND OPTICAL PROPERTIES OF CARBON THIN FILMS PRODUCED BY, CONTROLLED DISCHARGE OF GENERATED VOLTAGE VIA VARIABLE RESISTOR, IN THE ECR PRODUCTION METHOD

MUSTAFA ESEN*, MEHMET ESEN** *ISPARTA UNIVERSITY OF APPLIED SCIENCES, TECHNICAL SCIENCES VOCATIONAL SCHOOL, **CUKUROVA UNIVERSITY, ADANA VOCATIONAL SCHOOL

[email protected]

In this study, carbon, zinc oxide and indium materials were coated via ECR(electron cyclotron resonance) system and evaporation systems. After the textile fabrics were coated with carbon nano material using the ECR system, zinc and indium were evaporated with the evaporator system. Electromagnetic reflection, absorption and shielding properties were measured by placing metal plates behind nano-composite layered textile surfaces. The reflection properties were investigated in the frequency range of 3-18Ghz and 15-40Ghz. It has been observed that the carbon coating contributes to the zinc oxide shielding properties. The results showed that the coating with the highest shielding property was obtained from zinc oxide and carbon coating and also found that only the carbon coating contributes to shielding and absorption.

Key words: ECR, Textile Fabrics, Reflection, Shielding, Nano Coating. 117

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CALCULATION OF ISOTHERMAL COMPRESSIBILITY AND BULK MODULUS AS A FUNCTION OF PRESSURE IN A POLAR PEROVSKITE-LIKE [C2H5NH3]NA0.5CR0.5(HCOO)3 METAL– ORGANIC FRAMEWORK

S. AVCI1* AND M. KURT2 1 DEPARTMENT OF PHYSICS, SCIENCE AND ART FACULTY, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 2 DEPARTMENT OF ELECTRONIC ENGINEERING, ENGINEERING FACULTY, ÇANAKKALE ONSEKIZ MART UNIVERSITY*

[email protected]

Ferroelectricity, an electric properties of materials, is defined as a spontaneous electric polarisation that can be inverted by application of an electric field. Ferroelectric materials, crucial constituent of electronic devices, was discovered by J. Valasek in 1921. The researches related to ferroelectricity have been always on inorganic like BaTiO3 materials up to last decade, since finding of organic and hybrid organic–inorganic materials which has ferroelectric properties, the researchers are tends to these type of materials. Ethylammonium cation (CH3CH2NH3+, abbreviated as EtANaCr) is good example of the hybrid organic–inorganic materials which exhibit ferroelectric properties. EtANaCr exhibit a first order structural phase transition with induced pressure from the polar Pn ambient phase to a centrosymmetric P21/n high-pressure phase. Although there are some experimental studies to understand the structural phase transition with induced external pressure in the literature, the mechanism of pressure-induced phase transition in EtANaCr have not been explained theoretically yet. In this study, the pressure dependency of the isothermal compressibility was calculated by using experimental volume data and observed wavenumber of Raman modes in CH3CH2NH3+ both Pn and P21/n phases, theoretically. Also, we determine the Bulk modulus by using calculated the isothermal compressibility for both phases. Our results are compatible very well with the experimental results in the literature, as a result our theoretic model can be used for explain adequately structural phase transition in metal organic frameworks which exhibit ferroelectric properties.

This study is supported by Çanakkale Onsekiz Mart University The Scientific Research Coordination Unit, (Project number: FDK-2021-3591).

118

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SYNTHESIS OF %1DY3+ AND %1EU3+ DOPED LIB3O5 COMPOUNDS WITH DIFFERENT SYNTHESIS METHODS AND INVESTIGATION OF THE OPTICAL CHARACTERIZATIONS

SERA İFLAZOĞLU1,2 1 TUBITAK SPACE TECHNOLOGIES RESEARCH INSTITUTE, 2 MIDDLE EAST TECHNICAL UNIVERSITY, DEPARTMENT OF PHYSICS.

[email protected]

1%Dy3+ and 1%Eu3+ doped lithium triborate (LiB3O5) compounds to synthesis used solid-state synthesis method (solution method), microwave-assisted solid-state synthesis method, and high-temperature solid-state synthesis method. The X-ray Powder Diffraction (XRD) and Attenuated Total Reflection (ATR) measurements were determined after metal ion doping using different synthesis methods, the crystal structures, unit cell parameters, bond structures of the compounds. Thermal (DTA/TGA) analyses observed physical properties that might occur in the structure depending on the temperature, the determination of the melting point, and the change in the mass of the compound depending on the temperature. The morphological properties of the compounds determined the Scanning Electron Microscopy (SEM) images. According to the photoluminescence results, the Dy3+ ion 4F9/2→6H13/2 (575 nm) energy transition was low in the three methods. Energy transitions of Eu3+ ion at 5D0→7F1 (593 nm) and 5D0→7F2 (615 nm) does observe. The highest intensity value in %1Dy3+ and %1Eu3+ doped LiB3O5 compounds gives compounds produced by the high-temperature solid- state synthesis method. The color determination of the compounds using the CIE (Commission International de I'Enclairage) program does make from the results of the photoluminescence spectrum.

Keywords: Lithium triborate, Synthesis techniques, Photoluminescence, Dysprosium, Europium.

119

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF THE EFFECT OF THE NUMBER OF LAYERS ON THE MAGNETIC PROPERTIES OF MULTILAYER PT/CO THIN FILMS

TANER KALAYCI A, MUHAMMET ARUCU B, FIKRET YILDIZ C A BANDIRMA ONYEDI EYLÜL UNIVERSITY, VOCATIONAL SCHOOL OF HEALTH SERVICES, BANDIRMA, B BANDIRMA ONYEDI EYLÜL UNIVERSITY, GÖNEN VOCATIONAL SCHOOL, C GEBZE TECHNICAL UNIVERSITY, FACULTY OF SCIENCE

[email protected]

Especially in spintronic applications, the requirements of advanced technological applications are quite difficult to search for better materials. Highly spin polarized ferromagnetic materials are recognized as suitable materials that can replace conventional materials. [3d (Co, Fe) – 5d (Pt, Pd, Ag, Au)] multilayer (ML) with perpendicular magnetic anisotropy (PMA) and patterned structure are promising candidates for the perpendicular patterned magnetic recording media and random-access memories. For this purpose, we investigated the electronic properties of [Pt/Co] thin films varying number of layers, using first principles based on DFT method under spin generalized gradient approximation (GGA) using their optimized geometric structures, which helped in defining the electronic structures of these systems and their applications.

Acknowledgment: This work was supported by Research Projects with Foundation Number BAP-20-1003-007, Bandırma Onyedi Eylül University, Scientific Research Commission, Turkey.

120

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECT OF COBALT DOPING ON THE CYTOTOXICITY OF IRON OXIDE NANOPARTICLES ON FIBROBLAST AND GASTRIC CANCER CELLS

H. ÇALIK1, R. ÇAKIR-KOÇ1, N. D. KAHYA2, V. KURT3, B. SÜNGÜ MISIRLIOĞLU3, Ö. ÇAKIR3 1YILDIZ TECHNICAL UNIVERSITY, DEPARTMENT OF BIOENGINEERING, 2ANKARA UNIVERSITY, DEPARTMENT OF CHEMISTRY, 3YILDIZ TECHNICAL UNIVERSITY, DEPARTMENT OF PHYSICS

[email protected]

Cobalt ferrite nanoparticles have received attention due to their physicochemical and magnetic properties. Although they are used in various biomedical applications, there are few studies on their cytotoxicity. This study aimed to investigate the cytotoxic effects of iron oxide nanoparticles and their Co doped forms. Co doped iron oxide nanoparticles were synthesized by co-precipitation method. Their structures were investigated by FTIR, SEM, and XRD techniques. Their cytotoxic effect were performed using XTT assay on fibroblast and gastric cancer cells and their cellular uptake was verified by staining. In vitro studies revealed that Co doped iron oxide nanoparticles showed no cytotoxic effect and high cellular uptake on cells. Therefore, they are considered as promising candidates for drug delivery and hyperthermia applications.

Acknowledgment: This work has been supported by Yildiz Technical University Scientific Research Projects Coordination Unit under project number FYL-2021-3955.

121

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FABRICATION AND EXAMINATION OF PHOTODIODE PROPERTIES OF THE SCHOTTKY DIODES WİTH THE INORGANIC INTERFACE

ZAKIR ÇALDIRAN MEHMET BİBER ARDAHAN UNIVERSITY

[email protected]

In this study, the rectifying contact property of the Schottky diode obtained by using lithium fluoride (LiF) material as the interface layer was investigated. LiF/n-Si/Au Schottky type diode structures were obtained by using n type Si wafer and different metals such as Au, Ag, Cr, Ni for Schottky metal. Interface layer was deposited using lithium fluoride on the surface of n-Si wafer by thermal evaporation. Finally, Au, Ag, Cr, Ni metals with 7.85×10-3 cm-2 area were deposited on LiF film. Electrical measurements of Schottky type diode structures were performed with the current-voltage (I-V) measurements at the room temperature and in dark. Basic diode parameters such as ideality factory (n) and barrier height (Φb) of eight Schottky devices were calculated the using thermionic emission (TE) theory. Also n, Φb and series resistance (Rs) of the devices were calculated from I-V measurements by using Cheung and Norde functions at room temperature. When the results were examined, LiF interface material increased the barrier height (BH) compared to the reference device. This increase was different for Au, Ag, Cr, and Ni metals. In the next step, I–V measurements of LiF/n-Si/Au devices were taken under 100 mW/cm 2 and it was observed that the reverse bias current increased under light. The obtained results showed that the device obtained with LiF interface can be used in photodiode applications.

122

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Energy and Applications

123

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

WHAT ABOUT THE WASTE? END OF LIFE PHOTOVOLTAIC SYSTEMS

ASMIN ASKIN1,2, SIIR KILKIS2,3 AND BULENT G. AKINOGLU1,2,4 1 CENTRE FOR SOLAR ENERGY RESEARCH AND APPLICATION, MIDDLE EAST TECHNICAL UNIVERSITY, 2 EARTH SYSTEM SCIENCE PROGRAM, GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES, MIDDLE EAST TECHNICAL UNIVERSITY, 3 THE SCIENTIFIC AND TECHNOLOGICAL RESEARCH COUNCIL OF TURKEY (TUBITAK), 4 DEPARTMENT OF PHYSICS, MIDDLE EAST TECHNICAL UNIVERSITY,

[email protected]

The problem of waste is the main issue in the economic and environmental development of humankind. End-of-life (EoL) photovoltaic panels will be the "plastic" of today by 2050. Photovoltaic solar energy is the main form that enters the renewable transition to reach a zero-carbon future. Therefore, due to its lifetime and the emerging new technological enhancement of photovoltaic (PV) solar cell research, waste is a vital issue to be solved. We will discuss several proposals to tackle the waste management EoL of PV for its whole system. Informative conferences on how to engage EoL waste of the panels can be organized on the international platform. It may be possible to consolidate recycling centers with production centers. Thus, the carbon emission that will occur in the EoL panel transfer can be minimized. Economically feasible panel decomposition methods should be developed. In this way, R&D is also accelerated, and the tendency to EoL panel recycling will most probably be increased.

Keywords: Solar energy, photovoltaic systems, waste management, net zero carbon emission, re-cycling.

124

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE INVESTIGATION OF USING CETYL PALMITIC ACID AS A PHASE CHANGE MATERIAL IN A SOLAR POND

HACI SOGUKPINAR ZUHAL KARAGOZ GENC ISMAIL BOZKURT AYSE MINE KÜÇÜKKAYA ADIYAMAN UNIVERSITY

[email protected]

Solar energy, which is one of the renewable energy sources, is widely used to obtain thermal energy. The heat obtained from solar energy can be stored by using different systems. One of these systems is solar ponds. Solar ponds consist of layers whose salt density increases towards the bottom. In this study, the use of phase change materials to increase the heat storage performance of a model solar pond was investigated. The phase change material, Cetyl-palmitic acid eutectic mixture was prepared and its chemical properties was determined by FT-IR spectroscopy. The thermophysical properties and surface morphologies were determined by using Differential Scanning Calorimetry and SEM. The obtained phase change material was applied to the inner surface of the heat storage zone. The temperature distribution of the solar pond was calculated numerically for with and without phase change material. As a result, it has been seen that the use of phase change materials with suitable thermophysical properties in solar ponds will contribute to long-term heat storage performance.

ORGANIC SOLAR CELLS WITH BLENDS OF POLYTHIOPHENE AND PCBM

SERAP GÜNEŞ, BARKIN ÖZER YILDIZ TECHNICAL UNIVERSITY

[email protected]

The efficiency of the solar cell was tested by adding nanoparticles to the organic solar cell's p3ht pcbm layer. Between yield and, a linear association was calculated.

125

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CALCULATION OF A POSSIBLE REBOUND EFFECT ARISING FROM THE IMPLICATION OF VARIOUS MARKET BASED INSTRUMENTS FOR CARBON PRICING

CANKUT KAAN BOLAT, UĞUR SOYTAŞ, BÜLENT G. AKINOĞLU MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

A variety of quantitative analysis techniques will be used to determine whether implementing an emissions trading system would cause a rebound effect on the economy. A literature survey is conducted about the research. After defining the concepts of “emission trading systems” and “rebound effect”; the study moves on to explore and categorize other studies examining rebound effect cases, and studies measuring the efficiency of market – based instruments (focusing on emission trading systems) in depth. This study adds a unique contribution to the literature by trying to detect, analyze and understand the rebound effect of market – based carbon pricing instruments. In the light of the literature review so far, it is considered to use a panel data method to construct a function of energy consumption with dependent variables such as labor, income, capital and emission trade volume. The region selected for this analysis is the European Union, as the EU – ETS is a relatively old and mature system that can give reliable outcomes. Further studies will be conducted by asking questions like whether market volatility of an ETS affects the real income, or how the effects of ETS trading volume on total CO2 emissions are, and finally it will be discussed to foresee the results of implementing an ETS to Turkey.

Keywords: Rebound effect, quantitative analysis, emissions trading systems, environmental economics, energy economics.

126

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DESIGN OF DIELECTRIC-METAL-DIELECTRIC (DMD) STRUCTURE FOR OPTOELECTRONIC DEVICE APPLICATIONS

ELANUR ÇELİK, ÇAĞLAR ÇETİNKAYA, ERMAN ÇOKDUYGULULAR, BARIŞ KINACI İSTANBUL UNIVERSITY

[email protected]

Within the scope of this study, investigations were made on the dielectric-metal-dielectric (DMD) structure, which emerged as a candidate to replace transparent conductive oxide (TCO) coatings in many applications. In the DMD structure, tungsten oxide (WO3) nanostructure was chosen as the “D” layer and silver (Ag) was chosen as the “M”. The average visible transmittance (AVT) values of the DMD structure were calculated using the transfer matrix method (TMM), depending on the thickness variation of the WO3 layer and the Ag layer. According to the results obtained, it was determined that WO3/Ag/WO3 (did/dm/dod; 10 nm/8 nm/22 nm) structure was the most suitable DMD structure.

Keywords: DMD, WO3, Ag, TMM.

EFFECT OF COLOR FILTERS ON THE PERFORMANCE OF MONOCRYSTALLINE AND POLYCRYSTALLINE PHOTOVOLTAIC SOLAR PANELS

SÜNDÜZ GÖKÇEN GAMZE KAYA NECATI KAYA ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

In the study, we evaluated effect of various color filters on the performance of monocrystalline and polycrystalline solar panels in outdoor environment. In the experiment, we used four different filters from blue to red on photovoltaic panels. The efficiency and power of the solar photovoltaic panels as well as temperature of the panels were measured with and without filters, and their performances were compared.

This work was supported by Çanakkale Onsekiz Mart University, The Scientific Research Coordination Unit, Project number: FYL-2020-3244.

127

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations High Energy, Particle and Plasma Physics

128

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SINGLE PRODUCTION OF VECTOR LIKE X QUARK AT THE HL- LHC

ALI CAN CANBAY, ORHAN ÇAKIR ANKARA UNIVERSITY

[email protected]

This study concentrates on the single production of vector like X quark with exotic charge of Q_X=5/3 at the High Luminosity Large Hadron Collider (HL-LHC). Within the VLQ model framework, it follows the decay XàWtàWWb due to a sizable mixing of X with the third family of standard model (SM) quarks, and this process includes further W- leptonic or hadronic decays. The cross section for vectorlike X quark single production have been calculated through the simulation. After the fast simulation of signal and background events, estimations of the sensitivity to the parameters (mass m_X and coupling κ_X) have been presented at the center of mass energy 14 TeV and an integrated luminosity projections of 300 fb^(−1) and 3000 fb^(−1).

DIELECTRON PRODUCTION IN PP, P-PB AND PB-PB COLLISIONS

AYBEN KARASU UYSAL, SERPIL YALÇIN KUZU KTO KARATAY UNIVERSITY

[email protected]

The production of low-mass dielectrons is a tool for the understanding of the properties of the Quark-Gluon Plasma (QGP) created in heavy-ion collisions. To study the dielectron production in heavy-ion collisions, it is important to understand the primordial e+e− pair production in vacuum with minimum-bias proton-proton collisions and to disentangle hot from cold-nuclear matter effects with p-Pb collisions. Moreover, observations of collective effects in high-multiplicity pp and p-Pb collisions show surprising similarities with those in heavy-ion collisions, which can be further investigated with the measurement of dielectrons in such collisions. In this contribution, an overview of the recent measurements of e+e− pair production in pp, p-Pb and Pb-Pb collisions recorded by ALICE at different energies will be presented. The results will be shown as a function of the charged-particle multiplicity in the event, or the centrality of the collision. They will be compared to the expected dielectron yield from known hadronic sources and in Pb-Pb collisions with several predictions for the thermal radiation from the hadron gas and QGP phases and photo-production of correlated e+e− Their implications for the production of heavy quarks and quasi-real virtual-photons will be discussed as well.

129

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DEVELOPING OF A SHORT BASELINE NEUTRINO NEAR DETECTOR USING A WATER-BASED LIQUID SCINTILLATOR TECHNOLOGY

AYSE BAT, EMRAH TIRAS, VINCENT FISCHER, MIRAC KAMISLIOGLU

[email protected]

This study aims to investigate the detection of low-energy neutrinos near Turkey`s first nuclear power plant, the Akkuyu Nuclear Power Plant (ANPP) in Mersin, using a portable Water-based Liquid Scintillator (WbLS) detector. In this study, a 2-3 ton of WbLS detector was simulated using the GEANT4-based RAT-PAC simulation package. The detector consists of a 1.5-m high and 1.5-m wide cylindrical tank, filled with WbLS, and instrumented by 8-inch and 2-inch high quantum efficiency (HQE) PMTs. All four sides of the detector will be covered with two layers of 4-inch wide plastic scintillator paddles acting as an active cosmic veto wall. In the short term, this detector is aimed to be used a safeguard monitoring of the ANPP, but in a long-term plan, this detector may also be used as a near detector of a 30-ton WbLS project nearby the ANPP.

130

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ANALYSIS DESCRIPTION LANGUAGE AND CUTLANG INTERPRETER FOR HEP

AYTÜL ADIGÜZEL (İSTANBUL UNIVERSITY), BERARE GÖKTÜRK (BOĞAZIÇI UNIVERSITY), BORA ÖRGEN (BOĞAZIÇI UNIVERSITY), V. ERKCAN ÖZCAN (BOĞAZIÇI UNIVERSITY), SEZEN SEKMEN (KYUNGPOOK NATIONAL UNIVERSITY), BURAK ŞEN (MIDDLE EAST TECHNICAL UNIVERSITY), N. GÖKHAN ÜNEL (UNIVERSITY OF CALIFORNIA, IRVINE)

[email protected]

The Analysis Description Language (ADL), a domain-specific, declarative language that describes the physics content of an HEP data analysis in a standard and unambiguous way, independent of any computing frameworks. The main infrastructure is ADL executable: CutLang is a direct runtime interpreter written in C++, using lex and yacc for ADL parsing. In ADL, analyses are described in human-readable plain text files, clearly separating object, variable and event selection definitions in blocks having a keyword- expression structure. ADL has a self-descriptive syntax that includes mathematical and logical operations, comparison and optimisation operators, reducers, four-vector algebra and commonly used HEP functions. Adapting the ADL approach could have numerous benefits for the experimental and phenomenological HEP communities. These include facilitating the abstraction, design, optimization, , validation, combination, reproduction, interpretation and overall communication of the analysis contents and long term preservation of the analyses beyond the lifetimes of particular analysis frameworks or even experiments. Prototype versions of ADL and CutLang are already used in several physics studies and also for educational purposes. They are also adapted for use with LHC Open Data. In this talk, we present an overview and features of ADL together with current ADL applications.

131

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ENSURING DESIGN SPECIFICATIONS OF A HYBRID X-RAY UNDULATOR IN A MAGNETIC MEASUREMENTS LAB

BORA KETENOĞLU ANKARA UNIVERSITY

[email protected]

Today, linear accelerator-based fourth generation X-ray sources (namely X-ray FELs) are getting more and more attractive for many scientists doing natural sciences research, and hence, these "cutting-edge-technology tools of the 21st Century" are expeditiously evolving day by day. Under the circumstances, X-ray FEL generating insertion devices are intensively being developed by the undulator scientists worldwide. In this respect, all magnetic activities that hybrid X-ray undulators experience before commissioning, are explained in detail. Magnetic alignment, pole tuning, shimming technique and landmark measurements are thoroughly discussed with real magnetic measurements data. Advantages and challenges of different types of X-ray undulators such as in-vacuum, out- vacuum, superconducting etc., are mentioned as well.

LUMINOSITY AND BEAM PARAMETRIZATION FOR MISCELLANEOUS COLLIDERS BY THE SOFTWARE ALOHEP

BURAK DAĞLI, BORA KETENOĞLU, BILGEHAN BARIŞ ÖNER, SALEH SULTANSOY TOBB ETÜ

[email protected]

Luminosity of a particle collider is one of the most significant parameters for accelerator design, as it is related to the data obtained from them. Similarly, tune shift for a circular accelerator and disruption parameter for a linear accelerator play a crucial role in design matters of the accelerator to ensure continuity of collisions. For calculation of these parameters, the software AloHEP has been developed, which includes miscellaneous collider types (linear, circular and linac-ring type) as well as various colliding beams (electron, positron, muon, proton and nuclei). It computes the cross-sectional areas of both beams at the interaction point by using the design parameters of the accelerators stored in its database and matches these areas if different accelators are used for collision. By considering the matched cross-sectional area, it calculates the luminosity of colliders. However, there are some effects which may cause significant changes on luminosity for specific types of collisions such as "pinch effect", "beamstrahlung", and “hourglass effect", which need to be calculated numerically. It is aimed to develop AloHEP in a way that can simulate them as well. 132

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ANALYSIS OF GAS GAINS FOR MICROMEGAS (MICRO–MESH GASEOUS STRUCTURE) DETECTORS

CANER SARI, IBRAHIM A. M. ALSAMAK, ÖZKAN ŞAHIN ULUDAĞ UNIVERSITY

[email protected]

Micromegas detectors are very similar to classic parallel plate detectors in many ways. The signal fluctuations in Micromegas, on the other hand, are significantly smaller since the electrodes are arranged in a mesh. In this work, the measured gas gain curves for Micromegas detectors with two different amplification gaps were fitted and the secondary energy transfer processes known as Penning transfers that contribute to signal generation were investigated. The discrepancies in results obtained for the same gas mixture indicate that they are caused by variations in electric field configuration.

IDENTIFYING BOOSTED HIGGS TO BB(BAR) DECAYS WITH DEEP LEARNING IN PROTON-PROTON COLLISIONS AT THE LHC CONDITIONS

DOĞUKAN KIZBAY, HALIL GAMSIZKAN ESKIŞEHIR TECHNICAL UNIVERSITY

[email protected]

Deep learning is becoming more involved with our lives, and we think deep learning applications will play a more active role in particle physics analyses in the future. In this study, we perform a deep learning study on tagging the jets originated by decays of boosted Higgs bosons into bb quark-antiquark pairs against QCD background jets. We used two different deep learning algorithms: a convolutional neural network and a graph convolutional neural network. For both the Higgs boson signal and QCD background data, we used simulation data provided by CERN's Open Data platform. We report the performance of our models and also compare and comment on the results of our models.

133

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

LEBT LINE DESIGN, CONSTRUCTION AND RESULTS FROM MEASUREMENT BOX AT KAHVELAB

DUYGU HALIS, S. ACIKSOZ, A. ADIGUZEL, H. CETINKAYA, S. ESEN, T. B. ILHAN, S. OGUR, S. OZ, V. E. OZCAN, N. G. UNEL İSTANBUL UNIVERSITY

[email protected]

A proton linac consisting of an ion source (IS), a Low Energy Beam Transport (LEBT) line including a diagnostics station (MBOX) and a Radio Frequency Quadrupole (RFQ) which would accelerate a beam of 1mA current to 2MeV energy is being designed and produced at KAHVELab. The beam originating from the ion source has to match the RFQ input parameters. The LEBT line optics containing two solenoid, and two steerer magnets is optimized for this task. MBOX is used to measure the proton beam’s current, profile as well as the beam emittance upstream of the RFQ to ensure a correct matching between the IS and the RFQ. MBOX was designed, simulated, produced and tested using local resources. It contains home-built diagnostic tools: a Faraday cup, a scintillator screen and a pepper pot plate. Currently, as the beamline is prepared up to the RFQ input, commissioning work is ongoing at different IS energies. Results from various measurements, especially on beam profile and charge, are compared to the simulation predictions. In this talk, the locally developed beam profile analysis algorithm and the associated measurement results will be discussed.

This study is supported by TUBITAK Project no: 119M774.

134

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

WATER-BASED LIQUID SCINTILLATOR DETECTOR AS A NEW TECHNOLOGY TESTBED FOR NEUTRINO STUDIES

EMRAH TIRAS*(1,2), VINCENT FISCHER (3) (1) ERCIYES UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS (2) THE UNIVERSITY OF IOWA, DEPARTMENT OF PHYSICS AND ASTRONOMY (3) IOWA STATE UNIVERSITY, DEPARTMENT OF PHYSICS AND ASTRONOMY

[email protected]

The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a 26-ton Gadolinium loaded water Cherenkov detector located at SciBooNE Hall on the Booster Neutrino Beam (BNB) at Fermilab. The full implementation of the ANNIE physics phase detector was completed in 2019 and is now taking beam data to measure the neutron multiplicity from neutrino-nucleus interactions and charged current quasi-elastic (CCQE) cross-section in water. ANNIE provides a unique opportunity to study this physics in a controlled beam experiment in an energy range of 500-1200 MeV, which is relevant to both atmospheric neutrinos and long-baseline experiments. ANNIE is also the first experiment to use fast-timing and position- sensitive Large Area Picosecond Photodetectors (LAPPDs) to track particles in precision. In this talk, we will present the status of the physics phase and discuss the characterization results of the LAPPDs.

ANNIE: THE ACCELERATOR NEUTRINO NEUTRON INTERACTION EXPERIMENT AT FERMILAB

EMRAH TIRAS* (1,2), AYSE BAT (1), MIRAC KAMISLIOGLU (1,3), SERCAN HUSNUGIL(1,4) (1) ERCIYES UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS (2) THE UNIVERSITY OF IOWA, DEPARTMENT OF PHYSICS AND ASTRONOMY (3) BANDIRMA ONYEDI EYLUL UNIVERSITY, MEDICAL IMAGING DEPARTMENT (4) BILKENT UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS,

[email protected]

This study describes a medium-scale Water-based Liquid Scintillator (WbLS) neutrino detector near Turkey’s first nuclear power plant, Akkuyu Nuclear Power Plant (ANPP). The goals of this detector project: (1) monitoring the ANPP by measuring the antineutrino flux from its reactors, (2) deploying and testing new technologies such as LAPPDs, Gd-loaded WbLS, and Dichroicons, etc. (3) training and recruiting the next generation of neutrino physicists and detector experts. The detector is aimed to be a modular testbed for new technologies in the fields of new detection media and innovative photosensors. In this talk, we will present the simulation results of a 30-ton WbLS detector located 1 km away from the ANPP and discuss our proposal plans for the project. 135

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

KAHVELAB 800 MHZ RADIO FREQUENCY QUADRUPOLE (RFQ) PROTON ACCELERATOR DESIGN, SIMULATION AND MANUFACTURING PROGRESS

AYTÜL ADIGÜZEL, BIRANT BARAN, ASLIHAN ÇAĞLAR, ORHAN ÇAKIR, EMRE ÇELEBI, HAKAN ÇETINKAYA, ŞEYMA ESEN, ANIL KARATAY, ÜMIT KAYA, OĞUZ KOÇER, SINAN ÖZ, ERKCAN ÖZCAN, GÖRKEM TÜREMEN, GÖKHAN ÜNEL, FATIH YAMAN, ÖNDER YILMAZ İSTANBUL BILGI UNIVERSITY

[email protected]

An 800 MHz RFQ is designed at KAHVELab, Istanbul, using a novel approach to achieve 2 MeV proton beam with about %30 acceleration rate through a cavity of length smaller than 100 cm. Design choices such as tuner size, number of tuners, cavity geometry, vane tip geometry as well as method of assembling parts together to achieve a vacuum tight and RF tight structure without forfeiting precision of assembly will be presented. Semi-automatic design process of the vane tip geometry will be explained. The effects of uncertainties coming from production are simulated and examined. The simulations to investigate the tuner positions, cavity internal surface roughness and their effect on power usage and frequency response will also be discussed. The first 50 cm of the RFQ is manufactured as a prototype to test the chosen machining process. Initial results of the bead-pull experiment carried out on the prototype RFQ module and the challenges discovered on test production and changes to design regarding those will be presented. Lastly CMM measurements on the prototype RFQ vanes will be compared to design and the differences will be analyzed.

This project is supported by TUBITAK, project no : 118E838.

ENGINEERING STUDIES ON C AND H-TYPE DIPOLE MAGNETS FOR BOOSTER RING OF TAC-TURKAY SR FACILITY

ENDER AKDOĞAN (ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING) AND ÖMER YAVAŞ (ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING)

[email protected]

Turkish Accelerator Center Synchrotron Radiation Facility (TURKAY) is a proposed 3-GeV third- generation synchrotron light source facility. The magnetic lattice of the booster and the main ring are demonstrated in the Technical Design Report in 2015. In this study, the results on C-Type and H- Type dipole magnet engineering design studies are given in detail. In this frame, we used COMSOL Multiphysics and Creo Parametric codes for 3D representation. Engineering details and main parameters are presented in comparison.

136

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SPECTROSCOPIC INVESTIGATION OF ARGON DC GLOW DISCHARGE PLASMA MEDIUM

ESRA OKUMUŞ, DR. BESTE KORUTLU, RECEP ORHAN, PROF.DR. ARIF DEMIR, DOÇ.DR. HACI AHMEDOV GEBZE TECHNICAL UNIVERSITY

[email protected]

In this study, UV-Visible-NIR spectra emitted from Argon plasma in a vacuum were recorded with a high-resolution Czern-Turner type spectrometer. Argon plasma was produced at pressure of 9,82 x 10-2 Torr and applied potential of 575 V. The radiative and collisional processes of the Argon Glow discharge plasma were modeled by the Prismspect atomic physics package program. The distributions of ion densities were calculated using the Saha-Boltzman equation. The density of the excited energy levels of Ar I and Ar(II) ions was calculated with respect to electron temperature (0,4-3,5 eV) and density(10-4-10-1 gr/cm3).The UV-Visible-NIR spectra were simulated and compared with experimental spectra. The ratios of the intensities of the ArII(1s22s22p63s23p44f1- 1s22s22p63s23p43d1)/ArI (1s22s22p63s23p54p1-1s22s22p63s23p54s1) spectral lines were obtained for different plasma temperature and density. The temperature of the argon plasma was obtained from the spectroscopic line intensity ratios.

ANALYSIS OF MUCILAGE SAMPLES TAKEN FROM THE MARMARA SEA WITH LASER INDUCED PLASMA SPECTROSCOPY (LIBS)

ESRA OKUMUŞ, BESTE KORUTLU, RECEP ORHAN, ARIF DEMIR, HACI AHMEDOV GEBZE TECHNICAL UNIVERSITY

[email protected]

Mucilage formation has been observed intensively in the Marmara Sea recently. It is thought that environmental wastes discharged into the Marmara Sea are the main factors that cause mucilage formation. The formation of mucilage is an indication that marine pollution has reached high levels, and it is disturbing both visually and in terms of smell, especially in the coastal areas of the Marmara Sea. It is necessary to carry out elemental analyzes of the elements that cause the formation of mucilage and the wastes in the sea that cling to the mucilage in order to prevent the formation of mucilage. In this study, the analysis of mucilage samples taken from the Marmara Sea was performed at 20 Hz with a pulse of 4.4 ns and maximum energy of 450 mJ repetition frequency Nd: YAG laser and 0.05 nm resolution Mechell type ICCD coupled spectrometer.

137

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COMPLEX STRUCTURE OF THE HELIUM FLUX RECORDED IN THE AMS-02 EXPERIMENT

F. KAMER KARAKUS1, G. CIGDEM YALCIN2 İSTANBUL UNIVERSITY

[email protected]

In this presentation we will review the helium flux recorded in the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station [1] and discuss possible complex structure of the helium flux by the superstatistical [2,3] analysis which could give us more information about new physical phenomena as well as existing of the dark matter and anti-matter in the universe.

[1] Aguilar, M., et al., 2017, Observation of the identical rigidity dependence of He, C, and O cosmic rays at high rigidities by the Alpha Magnetic Spectrometer on the International Space Station, Physical Review Letters, 119, 251101. [2] Beck, C., Cohen, E.G.D., 2003, Superstatistics, Physica A: Statistical Mechanics and its Applications, 322, 267-275. [3]Yalcin, G.C., Beck, C., 2018, Generalized statistical mechanics of cosmic rays: Application to positron-electron spectral indices, Nature - Scientific Reports, 8, 1-10.

THE FLUKA SIMULATION OF MUONS ENERGY DEPOSITION ON METALS AND ALLOYS

NILGÜN DEMİR, FURKAN TOKAÇ BURSA ULUDAĞ UNIVERSITY

[email protected]

In this work, the energy deposition of muons was calculated in various metals and alloys with FLUKA simulation code. Metals and alloys use many scientific areas such as aerospace, electronic, automotive, and accelerator systems. The calculations were performed for Pb, Sb, Ni, Fe, and Cr metals and C based steel (0.23 % C, 0.435 % C - 1.22 % C), Pb-Sb alloys (96Pb – 4Sb, 94Pb – 6Sb, 92Pb – 8 Sb), Ni-Cr-Fe alloys (80Ni – 20 Cr, 60Ni – 24Fe – 16Cr, 35Ni – 45Fe – 20Cr). Each material with a surface area of 100x100 cm2 was exposed to parallel muon beams with 2,3 and 4 GeV energies. Muons energy deposition was simulated by choosing the thickness of each material 20-100 cm range. In addition, muon fluence values were simulated for each material.

138

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF LIGHT BARYONS AT NON-ZERO TEMPERATURE

GÜLŞAH BOZKIR MILLI SAVUNMA UNIVERSITY

[email protected]

This study is dedicated to investigation of the mass and residue of the light baryons (nucleon, Σ,Λ ,Ξ hyperon and Δ, Σ*, Ξ*, Ω- decuplet) at non-zero temperature via thermal QCD sum rule. For this purpose, we use the two-point thermal correlation function and consider the additional condensates appearing in the operator product expansion (OPE) at non-zero temperature. Therefore, we calculate the temperature-dependent mass and residue values of these light baryons from the obtained sum rules. Our numerical analysis show that the mass and residue of the corresponding light baryon remain almost constant up to a certain temperature, however beyond this temperature they start to decrease with rise in the temperature.

SPECIAL RELATIVITY IN SIX DIMENSIONS

HILMI ÜNLÜ İSTANBUL TECHNICAL UNIVERSITY

[email protected]

There have been many studies concerning the derivation and applications of Lorentz transformation in the theory of special relativity. We discovered a previously overlooked mathematical error in the relativistic velocity transformation equation which results in the incorrect prediction of the Lorentz invariance of electromagnetic fields. In order to eliminate this error, we propose a set of six-dimensional linear space-time coordinate equations which maintain the Lorentz invariance of metric and Maxwell wave equations between two frames with anisotropic Lorentz scaling factor along the principal x, y, and z axes of massive stationary and nonstationary frames. We then show that using the six- dimensional linear space-time coordinates for the forward and inverse Lorentz transformations with the relative velocities of two frames in the relativistic velocity transformation equations result in the correct prediction of the Lorentz invariant electric and magnetic fields and Maxwell’s wave equations between stationary and nonstationary frames. Results will be presented for relativistic mass, energy, momentum, Doppler effects and Lorentz invariant Maxwell's wave equations in massive frames.

139

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SEMILEPTONIC DECAY OF THE XIC IN LATTICE QCD

HUSEYIN BAHTIYAR MIMAR SINAN FINE ARTS UNIVERSITY

[email protected]

Studying the semileptonic decays of charmed particles is essential in testing the Standard Model of particle physics. Recently significant experimental progress has been made regarding the semileptonic decays. Lattice QCD is a discretized type of QCD; it is an ab- initio method that starts directly from the QCD Lagrangian. In this work, Xic to Xi weak transition is investigated on the lattice. In this transition, the charm quark changes to a strange quark. The matrix element of the semileptonic transition can be written by combining the vector and axial-vector currents, which are parameterized via six form factors. To access the form factors, two- and three-point correlation functions are computed on the lattice. Using the two- and three-point functions, dimensionless projected correlators are extracted. Finally, they are combined to form the Weinberg form factors.

Acknowledgments: The numerical calculations were partially performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources).

ANALYSIS OF TEC ANOMALIES CAUSED BY THE 30 OCTOBER 2020 AEGEAN EARTHQUAKE

MEHMET BARAN ÖKTEN, ALMINA DOKUR, ANJELIKA AYDIN, ÖMER FARUK AYDIN, ZEHRA CAN YILDIZ TECHNICAL UNIVERSITY

[email protected]

Positive and negative TEC (Total Electron Content) anomalies were calculated by investigating the TEC disturbance effects on the Earth's ionosphere, a natural plasma, caused by the 6.6-moment magnitude earthquake that occurred off the AegeanSea at 11:51:24 on October 30, 2020. By examining the effects of solar and geomagnetic activity on ionospheric disturbance, TEC anomalies that are likely to be related to the earthquake were determined. TEC data; obtained via three ground-based ionosondes (one selected outside the earthquake preparation zone for comparison) and five satellite-based IGS stations. The linear and polynomial correlations between the latitude and longitudinal distances to the earthquake epicenter of the TEC anomalies, which were determined to be caused by the earthquake, were obtained by various statistical operations. 140

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NEUTRINO OSCILIATIONS IN EXTERNAL FIELDS IN CURVED SPACETIME

L.A. AGHAMALIYEVA (BAKU BRANCH OF I.M. SECHENOV FIRST MOSCOW STATE MEDICAL UNIVERSITY AND BAKU STATE UNIVERSITY, BAKU, AZERBAIJAN), M.S. DVORNIKOVA ($.PUSHKOV INSTITUTE OF TERRESTRIAL MAGNETISM, IONOSPHERE AND RADIOWAVE PROPAGATION (IZMIRAN), TROITSK, MOSCOW, RUSSIA), R.G. JAFAROVB (INSTİTUTE FOR PHYSİCAL PROBLEMS AND DEPARTMENT OF THEORETİCAL PHYSİCS OF BAKU STATE UNIVERSITY, BAKU, AZERBAIJAN)

, b [email protected], c [email protected]

We study spin and flavor oscillations of neutrinos under the influence of gravitational waves (GWs). First, we consider neutrino spin oscillations in nonmoving and unpolarized matter, a transverse magnetic field, and a plane GW. We show that a parametric resonance can take place in this system. We also study neutrino flavor oscillations in GWs. The equation for the density matrix of flavor neutrinos is solved when we discuss the neutrino interaction with stochastic GWs emitted by coalescing supermassive black holes. We find the fluxes of cosmic neutrinos, undergoing flavor oscillations in such a gravitational background, which can be potentially measured by a terrestrial detector. Some astrophysical applications of our results are considered.

141

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

BONDI-HOYLE ACCRETION AROUND 4D EINSTEIN-GAUSS- BONNET BLACK HOLE

ORHAN DONMEZ AMERICAN UNIVERSITY OF THE MIDDLE EAST

[email protected]

In this presentation, a novel four dimensional Einstein-Gauss-Bonnet gravity is used to investigate the numerical simulation of a Bondi-Hoyle accretion around a non-rotating black hole. By solving the general relativistic hydrodynamical equations, we model the accreated matter from the wind-accreating X-ray binaries falls towards the black hole. The falling matter from far upstream sid of the domain creates a shock cone in the downstream region. We found the effects of Gauss-Bonnet coupling constant $\alpha$ in 4D EGB gravity on the accreated matter. It is shown that increases in $\alpha$ leads a violent oscillation inside the shock cone and increases the accretion efficiency. We further show that the quasi-periodic oscillations (QPOs) are naturally produced inside the shock cone when $-5 \leq \alpha \leq 0.8$. Finally, the negative coupling constants also give reasonable physical solutions. Increasing of $\alpha$ in the negativ directions suppresses the possible oscillation observed in the shock cone.

A SEARCH FOR THE FIRST GENERATION CHARGED VECTOR- LIKE LEPTONS AT FUTURE COLLIDERS

ALI OSMAN ACAR, OSMAN EMRE DELIALIOGLU, SALEH SULTANSOY TOBB UNIVERSITY

[email protected]

Flavor Democracy Hypothesis favors existence of iso-singlet quarks and vector-like charged leptons. Their observation at future colliders could shed light on the nature of mass and mixing patterns of known leptons and quarks, as well as Higgs boson itself. Vector-like quarks are extensively searched by ATLAS and CMS collaborations. Unfortunately, this is not the case for vector-like leptons, while they have actually similar status from phenomenology viewpoint. We argue that vector-like charged leptons should be included into the new physics search programs of future energy frontier colliders. It is shown that pair production at the HE-LHC with decay of one of the leptons to Ze and another to He channel, followed by H → bb and Z → µ+µ− decays will give opportunity to scan masses of iso-singlet and iso-doublet charged leptons up to 0.9 TeV and 1.5 TeV, respectively. FCC will extend this region up to 2 TeV for iso-singlet and 3.6 TeV for iso- doublet charged leptons.

142

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COLLECTIVE EFFECTS ESTIMATES FOR THE CURRENT DAMPING RING DESIGN OF THE FCC-E+E-

O. ETISKEN AND F. ANTONIOU, CERN, GENEVA, SWITZERLAND C. MILARDI AND A. DESANTIS, LNF-INFN, FRASCATI,

[email protected]

The current injector complex design of the FCC-e+e− project consists of e+/e− linacs, which accelerate the beams up to 6 GeV, a damping ring at 1.54 GeV, a pre-booster ring, accelerating the beam up to 16 GeV and a booster synchrotron ring integrated in the collider tunnel accelerating the beams up to the collision energies. The purpose of the damping ring is to accept the 1.54 GeV beam coming from the linac-1, damp the positron/electron beams and provide the required beam characteristics for the injection into the linac-2. In this presentation the current damping ring design is introduced and analytical calculations on various collective effect such as space charge, intra-beam scattering, longitudinal micro-wave instability, transverse mode coupling instability, ion effects, electron cloud and coherent synchrotron radiation, are presented.

CURRENT DESIGN STATUS OF FCC-E+E- PRE-BOOSTER RING OPTIONS

O. ETISKEN, Y. PAPAPHILIPPOU, F. ANTONIOU, CERN A.K.CIFTCI, IZMIR UNIVERSITY OF ECONOMICS

[email protected]

The FCC-e+e- injector complex needs to produce and to transport high intensity e+ and e− beams at a fast repetition rate for topping up the collider at its collision energy. Two different design options are under consideration as pre-accelerator, before the bunches are transferred to the high-energy booster in the injector complex: either using the existing SPS machine or a completely new accelerator. In this presentation, the design status as well as the advantages and disadvantages of both options are presented.

143

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DOUBLE TOP QUARK PRODUCTION THROUGH FCNC TQH INTERACTIONS AT THE HL-LHC

Ö. M. ÖZŞIMSEK, V. ARI, O. ÇAKIR HACETTEPE UNIVERSITY

[email protected]

In recent years new collider projects are on the agenda and researches based on their discovery potential is very popular. When colliders are become ready to explore BSM scenarios, fate of physics will be changed drastically. In that respect our study concentrates on the double production of top quarks at the High Luminosity Large Hadron Collider (HL-LHC). Within the top FCNC model framework, it follows the decay ttàWWbb, and this process includes further W-leptonic decays with same sign dileptons. The cross sections for the double top production have been calculated through the Monte Carlo simulation for different signal regions. Estimations of the sensitivity to the parameters (coupling η_u and η_c) have been presented after the simulation of signal and background events at the HL-LHC. Thanks to the collider’s increased luminosity and the unique characteristics of the physics channel, the exclusion limits on these couplings can be extended beyond the current limits.

NEUTRINO OSCILIATIONS IN EXTERNAL FIELDS IN CURVED SPACETIME

L. A. AGHAMALIYEVA, M. S. DVORNIKOV, R. G. JAFAROV BAKU STATE UNIVERSITY

[email protected]

We study spin and flavor oscillations of neutrinos under the influence of gravitational waves (GWs). First, we consider neutrino spin oscillations in nonmoving and unpolarized matter, a transverse magnetic field, and a plane GW. We show that a parametric resonance can take place in this system. We also study neutrino flavor oscillations in GWs. The equation for the density matrix of flavor neutrinos is solved when we discuss the neutrino interaction with stochastic GWs emitted by coalescing supermassive black holes. We find the fluxes of cosmic neutrinos, undergoing flavor oscillations in such a gravitational background, which can be potentially measured by a terrestrial detector. Some astrophysical applications of our results are considered.

144

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

OPTIMIZATION OF ELECTRIC SEXTUPOLE PROFILE FOR REDUCING IMAGE CHARGE EFFECTS

SELCUK HACIÖMEROĞLU INSTITUTE FOR BASIC SCIENCE

[email protected]

The proton EDM experiment relies on measuring the spin precession rate of protons with 1 nrad/s sensitivity. This high sensitivity requires a strict control over the fields on the spin. The vertical electric fields due to image charges can be controlled by means of vertical parallel plates with 20 cm height and a few cm separation along the ring. However, they cannot be installed inside electric sextupoles. We present a novel sextupole design to reduce the image charges by up to two orders of magnitude, which is sufficient for the sensitivity goal of the experiment.

DETERMINATION OF CHARGED PARTICLE PAIRS WITH SUPERVISED LEARNING METHODS

SERPIL YALCIN KUZU, AYBEN KARASU UYSAL FIRAT UNIVERSITY

[email protected]

Due to the signal extraction techniques in detectors, generally charged particles are paired to reconstruct mother particle produced in nuclear, particle and high energy physics experiments. In addition to high level of physics knowledge, the particle pairing procedure requires sophisticated analysis methods including advance computational techniques which results in long process time. The challenges of the charged pair determination can be eliminated by implementation of supervised learning methods that is one of the hottest topics in science nowadays. Random Forest Classifier is one of the supervised learning algorithms that generates decision trees from a randomly chosen subset of training data set and uses majority of votes from different trees to make final decision of the test set. In this study investigation of dielectron pairs with Random Forest Model is discussed as an example of the charged particle pair identification with machine learning approach.

145

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PERMANENT MAGNET MICROWAVE DISCHARGE ION SOURCE & ITS LEBT LINE

SEVIM AÇIKSÖZ, HAKAN ÇETINKAYA, SINAN ÖZ, AYTÜL ADIGÜZEL BOĞAZIÇI UNIVERSITY

[email protected]

A new permanent magnet microwave discharge ion source (MDIS) has been designed and constructed at KAHVELab. The aim is to extract ions from the thermal hydrogen plasma, generated using a 2.45 GHz microwave source. In order to extract ions from the plasma medium, magnetic field exceeding 875G has to be applied over the plasma chamber to ensure Electron Cyclotron Resonance (ECR) condition is satisfied. Since the system will be operated on the high voltage platform, a higher system stability would be achieved by using a permanent magnet configuration. Based on the magnetic field measurements of the constructed system, two-electrode extraction system has also been designed and produced to transmit proton beams from plasma chamber to the beamline. Finally, we have examined how the transmitted proton beams behaved on the existing Low Energy Beam Transport line (LEBT) and have optimized the LEBT line configuration accordingly. In addition, besides the protons, the trajectories of H2+ and H3+ ions from the MDIS were also studied to optimize the LEBT beam optics.

This study is supported by TÜBİTAK under the project grant 119M774.

FINITE TEMPERATURE MESON-NUCLEON COUPLING CONSTANT FROM THE SOFT-WALL ADS/QCD MODEL

SHAHIN MAMEDOV & NARMIN NASIBOVA, SHAHIN MAMEDOV & SHAHNAZ TAGHIYEVA BAKU STATE UNIVERSITY

[email protected]

We apply the soft-wall AdS/QCD model for the calculation of Rho meson-nucleon and a1 meson-nucleon coupling constants at finite temperature. We find, that these coupling constants becomes zero at the Hawking temperature.

146

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PAIR PRODUCTION OF VECTORLIKE Y OR T QUARK AT THE FCC-HH

ŞEYMA ŞEN BİÇER, VOLKAN ÇETİNKAYA KÜTAHYA DUMLUPINAR UNIVERSITY

[email protected]

Many extensions of the Standard Model (SM) suggest vectorlike quarks (VLQs). Only four sorts of extra quarks are allowed in the theory's particle content. They are represented by the name X, T, B and Y, and have electric charges of 5/3, 2/3, -1/3 and -4/3, respectively. They can be (T) or (B) singlets; (X,T), (T,B) or (B,Y) doublets; and (X,T,B) or (T,B,Y) triplets. VLQs transform as triplets under color, however in contrast to the SM quarks, their left- and right-handed (LH and RH) parts transform the same under the SU(2)×U(1) representation. Besides, VLQs couple to the SM quarks through an exchange of charged (W^+, W^-) or neutral (Z, H) bosons in most representations. We study pair production of Y or T quark and its decay to third family quark b and W boson at future circular hadron collider (FCC-hh) with √s=100 TeV and 1〖ab〗^(-1), 5〖ab〗^(-1) integrated luminosities. The pair production cross sections are obtained only as a function of VLQ mass, because we focus on the pure QCD contribution that is model-independent. We analyses pp→YY (or TT)→WbWb →2 jet +2 tagged bjet +1 lepton +MET for signal and relevant SM backgrounds. Due to the high collision energy and high luminosities, FCC-hh is expected to discover VLQs or improve current limits on the masses.

SPACE CHARGE CALCULATIONS FOR LOW BETA PROTON BEAM AND ITS EFFECT ON EMITTANCE

ŞEYMA ESEN, SALIM OĞUR, AYTÜL ADIGÜZEL, N. GÖKHAN ÜNEL, HAKAN ÇETINKAYA, V. ERKCAN ÖZCAN ISTANBUL UNIVERSITY

[email protected]

The Measurement Box (MBOX) measures the beam current, profile and emittance in the the low- energy beam transfer (LEBT) line. The emittance (together with Twiss parameters) defines the characteristics of the beam that later will be accelerator in the subsequent cavity, therefore its proper estimation is crucial. An important effect leading to emittance growth is the so called space charge (SC) effect. The SC effect is simulated from the internal interactions of the beam of about 1 mA current along the LEBT line. The growth in the horizontal and vertical axis of the beam with SC effect has been estimated with a program developed in Python language (PyDEDA). This presentation will focus on the space charge calculations and comparisons with other existing software such as TRAVEL program developed by CERN.

This study is supported by TUBITAK, Project no: 119M774.

147

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CONTROL SYSTEMS OF DC ACCELERATORS AT KAHVELAB

TAHA BATUHAN ILHAN SEVIM ACIKGOZ AYTUL ADIGUZEL MUHAMMED FURKAN ER SINAN OZ VEYSI ERKCAN OZCAN İSTANBUL UNIVERSITY-CERRAHPAŞA

[email protected]

KAHVE (Kandilli Detector, Accelerator and Instrumentation) Laboratory, at Boğaziçi University, Istanbul has two functional particle beamlines: electrons and protons. Each of these are followed by DC acceleration sections, for obtaining an electron beam welding machine and for providing protons to the radio frequency quadrupole accelerator which is being built. Both systems employ LabVIEW based GUIs to interact with the user and to control and monitor the DC power supplies, the vacuum gauges, turbomolecular pumps, stepper motors and high voltage power supplies are all controlled with PLCs. The equipment under high voltage, are monitored and controlled via Arduino based wifi and bluetooth wireless communication protocols. The proton beamline has additional devices for beam diagnostics which are being commissioned.

This study has been supported by TUBITAK (The Scientific and Technological Research Council of Turkey) Project No: 117F462 and 119M774, Boğaziçi University BAP (The Scientific Research Projects Coordination Unit) Project No:14821 and İstanbul University BAP Project No:36823.

148

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Material Science and Applications

149

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECT OF ELOKTRO PICKLING PARAMETERS ON SURFACE QUALITY IN STAINLESS STEEL PLATE PRODUCTION

BEDIRHAN GÜRAYDIN, BURAK BİROL, ONUR AY, HAMDI EKİCİ YILDIZ TECHNICAL UNIVERSITY

[email protected]

Stainless steel flat product is a finished or semi-finished product whose demand is increasing day by day in terms of our country and world market. With the developing rolling technology and control mechanisms, even 0.1 mm thickness can be reduced in cold rolling processes. Stainless steel is an engineering material that attracts investors due to its significant share in the world economy and increasing demand. For this reason, surface quality and efficiency are becoming increasingly important in the emerging competition. With the material thickness and increasing deformation rate, the final annealing temperature or time decreases in stainless steels as in every metallic material. The shortening of the pickling time, the increase in line speeds and the expectation of surface quality have caused many changes in stainless steel surface treatment lines. Electrolysis units are used in many processes. The disadvantage of the system is that half of the electrodes are consumed and dissolved together with the material during the loading of the plate. This significantly increases production costs. In addition, almost half of the supplied current is spent for the depletion of these electrodes. The aim of this study is to increase the surface quality and corrosion resistance by direct electrolysis. In this study, AISI 430 quality stainless steel was directly charged and cleaned by electrolysis in sulfuric acid solution and corrosion resistance, surface roughness, gloss and mass loss were investigated by Taguchi test method. Continuous and pulsed electrolysis were applied at different current densities to examine the effect of pulse in the electrolysis process.

150

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ELECTRICAL CHARACTERISTIC AND RADIATION RESPONSE OF AL/YB2O3/SIO2/N-SI/AL MOS CAPACITOR

BERK MORKOÇ, AYŞEGÜL KAHRAMAN, ERCAN YILMAZ BURSA TECHNICAL UNIVERSITY

[email protected]

In this study, we used Yb2O3, which is one of the rare earth oxides, in the double-layered sensitive region, and the frequency-dependent electrical characteristic and radiation response of the Al/Yb2O3/SiO2/n-Si/Al MOS capacitor are investigated. Three different methods, dry oxidation, electron beam evaporation and RF-magnetron sputtering, were used during the production of this capacitor. Thicknesses of the SiO2 and Yb2O3 layers were measured as 36 and 100 nm, respectively. C–V and G/ω–V characteristics were measured to cover the low and high frequency regions. Electrical properties such as series resistance, interface state density, effective oxide charge density were calculated. Radiation test was carried out with an irradiation starting from 1 Gy and increasing cumulatively to 500 Gy. Thus, the variation in the electrical properties depending on the radiation dose was investigated. C–V curves shifted towards increasing voltage values with increasing radiation dose. Sensitivity of capacitor was found as 54.1 and 9.2 mV/Gy for 80 Gy and 500 Gy by plotting dose-calibration curves, respectively.

151

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECT OF POROSITY ON REFLECTION AND TRANSMISSION OF POROUS SILICA THIN FILMS: SIMULATIONS BASED ON MAXWELL EQUATIONS VERSUS EMAS

BURCU AYGÜN M. PINAR MENGÜÇ ÖZGÜR ERTUNÇ ALTUĞ MELIK BAŞOL OZYEGIN UNIVERSITY

[email protected]

The energy generated by solar panels is related to the amount of sunlight reaching to the cover glass of the panels. Sunlight coming to the surface of a photovoltaic (PV) panel is transmitted and reflected by the glass layer, which reduces the intensity of electromagnetic waves reaching to the solar cells. Hence, the cover glass affects the performance solar panels. To overcome these problems, PV cells are coated with anti- reflective coatings (ARCs). While there are many ARC types used for this purpose, porous silica is the most widely used coating type because it can be adapted for the morphology of a surface, reduces the density of the coating materials and allows modification of the index of reflection to provides a better performance. Still, although porous silica coatings have been used quite effectively for PV cells as reflection-reducing components, there are various uncertainties encountered in obtaining the porosity, pore morphology, size and optical properties of porous thin films. To overcome these practical problems interaction of EM-waves with coating material needs to be modelled. For this, either a rigorous analysis starting from the Maxwell Equations can be conducted or a simplified analysis based on effective medium approximations (EMAs) can be carried out to determine the optical properties of thin-film coatings. In general, EMA-based approaches are more successful in describing the optical properties of non-porous coatings. For porous media, EMA are questionable. In the present study, we extend the analysis from 2D non-absorbing thin films to 3D non-absorbing thin films silica. We consider thin films comprised of vertically aligned ellipsoidal porous, with different volume fractions and a varying number of pores and determine reflectance and transmittance of the films. In addition, the calculations are extended to wavelength spectrum of 210-1200 nm for both the TE (transverse electric) and TM (transverse magnetic) modes. The effects of porosity and pore densities on the reflectivity and transmissivity of porous thin films are explored. Besides, this study was focused on determining whether EMA models applied to Fresnel equations are compatible with the data obtained by 3D analysis in non-absorbing porous thin films where absorbing can be neglected.

152

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SOFT METROLOGY FOR SOL-GEL THIN FILM SYNTHESIS

CUMHUR YILDIRIM, NILGÜN BAYDOĞAN İSTANBUL TECHNICAL UNIVERSITY

[email protected]

Thin films have been widely synthesized for their proposed functions to widen their application areas. For reliable functionality with proper working regime, the complex relationship among synthesis process parameters and intrinsic materials properties of the components should be adressed through thin film engineering manner. However, It is inevitably unfeasible that real-time monitoring of thin film synthesis process which requires many physical equipments. Here, we explain a soft metrology based technology to be used in sol-gel thin film synthesis process which enable real time monitoring feasible.

INVESTIGATION OF GEOMETRIC OPTIMIZATION AND MOLECULAR DYNAMICS PROCESS OF AUCD NANOSTRUCTURE VIA NONSCC-GFN1-XTB BASED ON DFT COMPUTATIONAL METHOD

FATIH AHMET CELIK1,* AND EBRU TANBOĞA KORKMAZ2

[email protected]

Abstract AuCd metal has attracted increasing due to its physical properties and several applications in materials science. Numeric calculations can play an important role in understanding these properties at the nano-scale for a deeper insight into computational methods. Especially, density functional theory (DFT) based on extended tight-binding model enables high accuracy for calculations of simulation process. Here, a DFT-based method, i.e., extended density functional tight-binding without self-consistent charge (NonSCC-GFN1-xTB), is adopted to investigate of AuCd system for understanding the geometric optimization and molecular dynamic (MD) simulation process. This assessment will promote NonSCC-GFN1-xTB computational methods on AuCd.

153

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EVALUATION OF MECHANICAL AND NUCLEAR SHIELDING CHARACTERISTICS OF DIFFERENT GRANITE ROCKS: A MONTE CARLO FLUKA STUDY

MURAT DAL, ESRA KAVAZ, UFUK PERİŞANOĞLU, HÜSEYIN OZAN TEKİN ATATÜRK UNIVERSITY

[email protected]

This study has focused on determination of gamma-neutron shielding mechanical and lithological properties of seven granites taken from various regions of Turkey. The mass attenuation coefficients (mr) of granites whose elemental compositions were determined by XRF method were simulated Monte Carlo Fluka Code in the energy range 0.082-1.33 MeV and compared with theoretical WinXCOM results. The results of Fluka Code and WinXCOM program were observed in good agreement. Then, Half Value Layer (HVL), Effective atomic number and electron density of the granites were computed employing the mr values. Also Exposure Buildup Factors of the granites were acquired depending on the photon energy and penetration depth. Further, neutron shielding capability of the studied granites was estimated by finding effective removal cross sections of fast neutrons. The obtained outcomes are indicated that G4 and G5 granites (Bergama Kozak gray granite (4), Giresun mink granite (5)) have superior nuclear shielding properties among the other granites. The present granites have been compared in terms of linear attenuation coefficient with China, India, Brazil, Zimbabwe and Finland granites previously reported. Moreover, the mechanical properties of the granites were found in the standard ranges.

154

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MOLDING OF MICROPATTERNED BIOMIMETIC STRUCTURES WITH PDMS

ESRA ŞEN HAVVA ELIF LAPA SALIH AKYÜREKLİ MURAT KALELİ SÜLEYMAN DEMIREL UNIVERSITY

[email protected]

Polydimethylsiloxane (PDMS) is a very useful polymer material that is biocompatible, flexible, cost-effective, transparent, and has a glass transition temperature close to room temperature. In addition, this material, whose fluidity can be controlled by the amount of hardening agent (curing), can be applied easily and quickly in many mold processes. Doping and plasma treatment applied to the surface can change the hydrophobic property of PDMS. PDMS with these flexible features; is often preferred in solar cells, electro- optics, wearable electronics, and flexible pressure sensors. Pressure sensors must have both repeatable flexibility and controllable conductivity in order to sense external mechanical forces and generate compatible electrical signals. Transferring a conductive polymer onto a PDMS substrate to form conductive polymer/PDMS structures is a widely applied strategy to fabricate flexible pressure sensors. Many current studies are carried out on living structures (plant, insect, etc.), which have regular symmetry in nature, and their use in pressure sensors and wearable electronics by molding them with PDMS. In this study, each of the samples such as cactus, insects, fish scales, whose mirror symmetry patterns were taken with PDMS, have symmetrical patterned structures that have the potential to be used in different applications. The patterns of these samples and mirror- symmetric PDMS molds were determined by SEM analysis (symmetric region area, repeatability, pattern depth, etc.). Piezoresistive sensor studies were carried out on the silver-coated PDMS pattern produced using a PDMS mold taken from carp scales (Cyprinus Carpio) and the resistance values were measured. The molding method used in this study, surface improvement studies, and optimization of pressure/resistance values will lead to the production of many biocompatible IoT sensors to be used in the future.

155

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

LITHIUM AND CERIUM MODIFIED NIOX HOLE TRANSPORTERS FOR INVERTED PEROVSKITE SOLAR CELLS

FATMA PINAR GÖKDEMIR CHOI YILDIZ TECHNICAL UNIVERSITY

[email protected]

The development of perovskite-based solar cells has attached exceptional attention due to the fast and tense rise in power conversion efficiencies. Selecting appropriate charge transport materials between perovskite and related electrodes is crucial for superior efficiencies. For p-i-n (inverted) type of perovskite solar cells particularly the choice of the hole transporting layer plays an important role. Lately, inorganic hole-transporters have been employed for enhancing device performance and stability. Among them, non- stoichiometric nickel oxide (NiOx) has been extensively used in inverted cells. Even though stoichiometric nickel oxide is an insulator, it becomes a p-type semiconductor with the presence of NiOOH and Ni2O3. It is known that the excess oxygen lightly increased Ni2O3 quantity with the Ni3+ states are expected to result in increased hole conductivity. Considering the NiOx exhibits relatively weak electrical conductivity, the ratio of Ni3+/Ni2+ states is a critical point and extremely increased ratios will cause a decrease in the electrical conductivity. Recently, various researchers are focused on extrinsic doping to change Ni vacancies/holes and enhance the hole conductivity without an increase in electrical resistivity of NiOx. Here, Li and Ce co-doping is applied to improve electrical conductivity, morphology, chemical stability, optical transparency, and hole conductivity of the nickel oxide layers. X-ray Photoelectron Spectroscopy, FTIR, UV-vis Spectroscopy, Atomic Force Microscopy, Kelvin-Probe Microscopy used to investigate the effect of doping on NiOx layers while Scanning Electron Microscopy conducted for perovskite layers. Hole mobilities and trap states were scrutinized through Space Charge Limited Current analysis. Optimum Li and Ce co-doping enhanced hole extraction which promotes the solar cell efficiencies from 9.0 % to over 12.0 % with an extended lifetime.

156

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TIO2 THIN FILMS WITH AG SEED-LAYER FOR TRIBOELECTRIC DEVICES

GIZEM DURAK YÜZÜAK, SERAY ÖZKAN, ERCÜMENT YÜZÜAK RECEP TAYYIP ERDOĞAN UNIVERSITY

[email protected]

Over the last 10 years, as electronic devices have become more widespread to meet our daily demands in our everyday lives, several research and development studies have been carried out on technical approaches that can not only supply batteries to their energy needs but also on their own. Triboelectric nanogenerators, which rely on the triboelectric effect, look to be simple devices that may simply harvest waste energy from their surroundings. Triboelectricity, also known as triboelectric discharge, is a type of static electricity. In that energy, recovery will be achievable thanks to the ability to turn the waste energy into electricity through amazing energy collecting technology. Instead of unsuitable polymers for long-term use in harsh environments as a friction layer in TENGs, one of the possible possibilities through semiconductor materials is robust thin films. Because of their low cost and high activity, TiO2 films are the most commonly utilized oxide for electronic applications due to their strong chemical and mechanical stability. However, there are two main reasons why the friction layers are not as efficient as they should be. The first of them is caused by either the electron donating triboelectric friction layer or the electron acceptor layer not working properly. To address these issues, Ag seed-layers are placed as supporting layers. Ag/TiO2 films were deposited on Si(100) substrates by RF magnetron sputtering method. To manage the triboelectric performance of the Ag/TiO2 films, structural and electrical characterizations were done with X-ray diffraction, scanning electron microscopy, atomic force microscopy, semi-logarithmic current- voltage, and frequency-dependent capacitance measurements. Due to changes in particle distributions, the use of Ag seed-layers has an impact on crystal and surface structure. Variation collected from frequency-dependent capacitance measurements yielded surface charge density characteristics. Due to the interaction of triboelectrification and electrostatic induction, the maximum capacitance value at extremely low frequencies regarded as an additional contribution for the triboelectric is relatively near to the natural oscillation frequency.

Keywords: Triboelectric Effect, Ag/TiO2, Triboelectric Nanogenerator, Friction Layer.

Acknowledgments: This work was supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the grant number of 119M972.

157

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CHARGE TRANSPORT IN HIGHLY STRAINED [6]CYCLOPARAPHENYLENE: IMPACT OF POLIMORPHISM FOR PACKING STRUCTURE-DEPENDENT ON STATIC/DYNAMIC DISORDER

GÜLSEVİM AYDIN ŞAHİN, OLKAN KOÇAK, İLHAN YAVUZ MARMARA UNIVERSITY

[email protected]

Cycloparaphenylenes [n]CPP, which is considered the structural component of fullerenes and carbon nanotubes and bonded to each other in the "para" position. Herein, we report how four different polymorphs of cycloparaphenylenes ([n]CPP) of certain ring sizes (n=6, where n is the number of phenyl units) and their packing structure affect static and dynamic processes in light of molecular dynamics simulation and density functional theory calculation. Many calculations were made using molecular dynamic equilibrated morphologies at 300 K in order to provide a basic understanding at the atomic level for the structural polymorph of [6]CPPs. The Gaussian distributions of site energies in the order of static and dynamic disorders are predicted for randomly chosen 10 [6]CPPs within supercell. Both herringbone type packed, HI17 and HJ18, show that the dynamic disorder is very close and low to static disorder. However, the difference between the dynamic and static disorder of tubular packaged, TI17 and TJ12, is increased. Charge carrier mobilities for ideal and disorder structure of four different polymorph of [6]CPPs were simulated from Kinetic Monte-Carlo simulations and we revealed that low mobility in HI17 and HJ18 is not coincidence.

THE INVESTIGATION OF MN SUBSTITUTION FOR MGB2 SAMPLES

HASAN DURMUŞ ÖZLEM BILGILI KEMAL KOCABAŞ İZMIR EKONOMI UNIVERSITY

[email protected]

Mn substituted MgB2 samples have been prepared by in-situ solid state reaction route. X- ray diffraction (XRD) patterns and scanning electron microscopy (SEM) pictures were used to investigate structural changes; besides, M-H measurements were taken for seek to magnetic behavior of the samples. Results showed that MgB2 is the main phase for all the samples with impurity phase of MgO. SEM pictures demonstrated that highly dense conglomerates of grains were formed. Magnetization studies revealed that critical current density (Jc) sharply decreased with increasing Mn content.

158

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

TRANSPARENT, P-TYPE CONDUCTING (CUS)X:(ZNS)1-X BASED NANOCOMPOSITE THIN FILMS FOR OPTOELECTRONIC APPLICATIONS

HÜSEYIN KAAN KAPLAN, ALI OLKUN, SERTAN KEMAL AKAY BURSA ULUDAĞ UNIVERSITY

[email protected]

In this study, transparent and conductive p-(CuS)x:(ZnS)1-x nanocomposite thin films have been produced by using a physical vapor deposition technique. Material properties are first characterized electrically and optically to determine their performances. Then, elemental, morphological, and structural analyzes were made, and the data were analyzed in detail by relating how optical transmittance and conductivity properties changed. From the XRD studies, crystal phases and crystal sizes were determined. Surface morphologies were examined using the SEM and AFM images and compared with XRD results. Also, It was observed that the roughness values ranged from approximately 1 to 15 nm. According to the changing Cu/(Cu+Zn) ratios, the optical transmittance values of the films at 550 nm wavelength ranged from 58% to 79%, and the Eg values ranged from 2.81 to 3.52 eV. Also, the resistivity value of the sample with the highest conductivity was determined as 1.1E-3 S/cm. These results show that this (CuS)x:(ZnS)1-x based nanocomposite thin films are suitable for many optoelectronic applications as p-type transparent electrodes.

OPTIMIZATION OF THE SPUTTERING POWER TO IMPROVE THE STRUCTURAL, OPTICAL, AND ELECTRICAL PROPERTIES OF GALLIUM DOPED ZINC OXIDE THIN FILMS

MAKBULE TERLEMEZOGLU TEKIRDAĞ NAMIK KEMAL UNIVERSITY

[email protected]

Gallium-doped zinc oxide thin films were deposited on glass substrate by one-step radio frequency (RF) magnetron sputtering in which substrate temperature was kept at constant room temperature. The effect of sputtering power on the crystallinity, optical band gap, surface morphology, and electrical properties of the deposited gallium-doped zinc oxide thin films was investigated in detail. The structural properties of sputtered thin films were investigated by X-ray diffraction (XRD) measurements, Raman spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM). XRD patterns of deposited films confirmed a highly (002) c-axis oriented hexagonal wurtzite structure of zinc oxide. It was observed that the doping of Ga in zinc oxide films improves the crystallinity of the films and the obtained grain sizes increase with higher sputter power. SEM micrographs showed that films have good adhesion and uniform surface morphology. Besides, the optical properties of sputtered thin films were determined by using the transmittance and reflectance spectra. Tauc plot and first derivative spectroscopy techniques were applied to obtain the bandgap energy of thin films and the bandgap energies were found in the range of 3.33-3.43 eV. In addition, the electrical properties of thin films were obtained employing hall-effect, Four-Point Probe Resistivity, and temperature-dependent conductivity measurements.

159

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COMPUTATIONAL MODELING OF 2D MATERIALS

NADIRE NAYIR, YUANXI WANG, DANIELLE HICKEY, YANZHOU JI, YUAN XUAN, TANUSHREE CHOUDHURY, JOAN REDWING, LONG-QING CHEN, NASIM ALEM, VINCENT CRESPI, ADRI VAN DUIN KARAMANOGLU MEHMET UNIVERSITESI, FIZIK, TURKIYE / PENNSTATE UNIVERSITY, 2-DIMENSIONAL CRYSTAL CONSORTIUM AND MECHANICAL ENGINEERING, USA

[email protected]

Since the first isolation of the graphene layer in 2004, 2-dimensional (2D) materials continue to exhibit growing scientific and industrial promise. To date, many experimental studies have focused on the synthesis and characterization of 2D materials by applying various growth and visualization techniques, representing great progress. However, despite the extent of experimental studies, the synthesis of large-scale, defect-free 2D materials with controllable thickness is still challenging for reasons such as the fact that the synthesis and characterization are costly and relatively slow, the precursors are expensive and toxic and the selection of the substrate is restricted. This has stimulated the development of empirical potentials that have become essential to simulate 2D materials at large scales and low computational cost. Here, we present the newly developed and cost-effective ReaxFF reactive force field potentials[1-5] for large-scale simulations of two-dimensional transition metal dichalcogenides, validated by extensive first-principles energetics data on periodic and non-periodic calculations and experimental measurements. The new potentials are designed to capture the fundamental solid-phase phenomena observed in TMD materials such as 1T-2H phase transition, vacancy diffusion, point and line defects, and grain boundaries. The new ReaxFF descriptions can also provide valuable atomic insight into the edge control growth kinetics of TMD materials [5] and the morphological evolution of TMD domains during growth. [3]

[1] Nayir et al. J. Phys. Chem. C 2020, 124, 28285 DOI: 101021/acs.jpcc.0c09155 [2] Nayir et al. 2021 accepted with minor revision by J. Phys. Chem. C [3] Nayir et al. MatSciEng B Vol. 271, Sep. 2021, 115263, DOI:10.1016/j.mseb.2021.115263 [4] Xuan et al. J.Crystal Growth 2019, 527, 125247 DOI:10.1016/j.jcrysgro.2019.125247 [5] Hickey et al. Accepted by NanoLetters,arXiv:2006.11668.

160

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECT OF DIFFERENT OXIDE CHARACTERISTICS AND ACID COMBINATIONS ON DESCAILING CAPABILITY ON AISI 304 QUALITY STAINLESS STEEL SURFACE

ONUR AY, BEDIRHAN GÜRAYDIN, HAMDI EKİCİ, BEYHAN TATAR NAMIK KEMAL UNIVERSITY

[email protected]

AISI 304 quality stainless steel is an indispensable material for daily use thanks to its high corrosion resistance, high thermal conductivity, formability and visual properties. Stainless steel flat materials are produced by hot rolling, annealing and cold rolling after casting, and are then prepared for service lines by annealing and surface passivation. In this study, the effects of acid types and oxide character on the material surface on descaling were investigated by descaling with different acid types of oxides of different characters formed on the material surface as a result of the heat treatment conditions applied at different temperatures and times to relieve the internal stresses formed after cold rolling. In the studies, it has been seen that the annealing time and annealing temperature affect the type of high temperature oxides growing on the material surface, layer thicknesses and surface morphology. The porous nature of its oxides facilitates the diffusion of the acidic solution on the surface and under the surface and affects its ability to dissolve from the surface. At the same time, the difference in the ability of the solutions used to dissolve the spinel phases formed in the interlayer is also effective in the pickling times, which is the final surface process.

161

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THERMOMECHANICAL AND STRUCTURAL EFFECT OF THE QUATERNARY ALLOYING ELEMENTS ON CU BASED SHAPE MEMORY

İSKENDER ÖZKUL1*, İPEK AK1, PSHDAR AHMED IBRAHIM2, CANAN AKSU CANBAY2 1MERSIN UNIVERSITY, FACULTY OF ENGINEERING, DEPARTMENT OF MECHANICAL ENGINEERING, 2FIRAT UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS

[email protected]

It differs from other classical alloying techniques due to the doping of alloying elements in almost similar proportions. This situation also creates differences in the physical properties of the alloy. Therefore, different alloying elements cause different properties. The first generation of High Entropy alloys (HEAs) is that five or more equiatomic elements are fabricated together in the range of 5-35 at.% concentration. Recently, the second generation of HEAs was identified as non-equimolar compositions. HEAs have outstanding mechanical quality and may be changed further by adding various alloying elements. The influences of Ga and V doping on AlCoFeMnNi alloy's structure and magnetic properties were studied. Scanning electron microscope, energy-dispersive X- ray (SEM-EDX) were used to structure analysis, and X-ray diffraction (XRD) was used for crystal structure examinations. Besides, vibrating sample magnetometry (VSM) is used to verify its applicability in magnetic applications at high temperatures. All results should become a guide to how these alloys could use in High entropy alloys application.

Keywords: Magnetic properties, HEAs, High entropy alloy, VSM, XRD, SEM, EDX.

162

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MICROSTRUCTURE AND MAGNETIC PROPERTIES OF THE ALCOFEMNNI-X(X=GA, V) HIGH ENTROPY ALLOYS

PSHDAR AHMED IBRAHIM1, İSKENDER ÖZKUL2, CANAN AKSU CANBAY1* 1FIRAT UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS, 2MERSIN UNIVERSITY, FACULTY OF ENGINEERING, DEPARTMENT OF MECHANICAL ENGINEERING

[email protected]

Shape memory alloys are alloy types that quickly find their place in different fields. Undoubtedly, NiTi alloys have the most effective use among these alloys. However, when evaluated in terms of production costs and ease, it should also focus on different alternative alloys. Therefore, Cu-based shape memory alloys, which we can consider as the closest competitor, are promising. In this study, phase transformation values were investigated by using the quaternary alloying elements, taking CuAlNi alloy as a reference, which is successful in obtaining martensitic transformation in copper-based alloys. Ti, V, Nb, Ga and Hf, which have different properties, were used as the quaternary alloying element in the studies. Thermomechanical and structural changes were observed by adding these elements at very close ratios to the reference alloy. The different values that the alloys have enabled us to obtain different findings on the structure. At the same time, changes in enthalpy and entropy values were observed as well as changes in martensite and austenite temperatures in phase transformations. The quaternary alloying element, which is relatively low compared to the ratio of its alloy, also caused visibly different formations on the microstructure.

Keywords: Shape memory alloy, martensitic transformation, CuAlNi.

RECENT RESEARCH OF BIODEGRADABLE ZN BASED ALLOYS

SELMA ÖZARSLAN HATAY MUSTAFA KEMAL UNIVERSITY [email protected]

Today, research in the field of biodegradable materials have gained great progress with the advancement of materials science and technology. The search for new materials in this area has focused on production methodology and alloying techniques. The previously developed biodegradable Mg-based and Fe-based alloys, as well as biodegradable Zn-based alloys, are known to overcome the major concerns and disadvantages found in Mg-based and Fe-based biodegradable materials. In this study, we firstly summarized the production methods of Zn- based alloys for the biomedical applications. Then we compiled studies on the mechanical and corrosion properties of Zn-based alloys and finally we discussed the latest point of biodegradable Zn based alloys today. "Acknowledgments: This research was supported by Hatay Mustafa Kemal University Scientific Research Projects Department. Project No: 19.M.055 "

163

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Mathematical Physics, Astrophysics and Applications

164

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECT OF PARTICLE SIZE AND GEOMETRY ON MAGNETOCALORIC AND MAGNETIC HYPERTHERMIA PROPERTIES IN MAGNETIC NANOPARTICLES

AYMİLA AKYILDIZ, ÜMİT AKINCI DOKUZ EYLÜL UNIVERSITY

[email protected]

The magnetocaloric effect is the change in temperature of the magnetic material under the changing external magnetic field. It has a wide range of application areas, from cooling technologies to various treatment methods such as magnetic hyperthermia used in cancer treatments. While the applications of magnetocaloric effect in two- and three-dimensional materials continue to develop, the application areas of magnetic nanoparticles in technology are growing rapidly with the development of nanotechnology. In this study, by simulating magnetic nanoparticles of different sizes and geometries, the answer to how the magnetic entropy changes and specific absorption rates, which measure the magnetocaloric performance of the material, depending on the nanoparticle geometry. The spin-1/2 Ising model was used as the model, and the model was solved with Monte Carlo simulations, which is a powerful method in statistical physics. Equilibrium and dynamic phase transition points were obtained by examining the changes in order parameters of magnetic nanoparticles with temperature and time. Magnetic entropy changes for magnetocaloric properties and specific absorption rates for magnetic hyperthermia properties were calculated. As a result of the calculations, the effect of the size and geometry of the magnetic nanoparticles on the magnetic entropy change and the specific absorption rate was determined.

EVIDENCES FOR CHAOTIC AGRICULTURAL PRODUCTION

MELIKE E. BILDIRICI; FULYA OZAKSOY SONUSTUN, BAHRI SONUSTUN, YILDIZ TECHNICAL UNIVERSITY

[email protected]

In this paper, it was purposed to provide the empirical analysis for the determination of the chaotic structure of agricultural production. For this reason, the nonlinear pattern of economic growth and agricultural production will be identified by the BDS test. Following, the chaotic structures of the analyzed variables will be examined by the Lyapunov exponents. The estimation findings purport the existence of chaotic dynamics of agricultural production.

165

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE CHAOTIC DYNAMICS OF COVID-19 AND CLIMATE CHANGE

MELIKE E. BILDIRICI; FULYA OZAKSOY SONUSTUN, BAHRI SONUSTUN YILDIZ TECHNICAL UNIVERSITY

[email protected]

Although the impact of the Coronavirus (Covid-19) pandemic crisis on climate change and environmental degradation has been a frequently discussed point in recent times, there is no consensus has yet been reached. In this study, the relation between climate change and Covid-19 will be examined in two stages. In the first stage, the chaotic structure of Covid-19 and climate change will be analyzed by Lyapunov Exponents. Following, the chaotic causality among the analyzed variables will be investigated by using chaotic causality test. The findings of this study will help public authorities and regulators create economic policy proposals that will enable them to create healthier, cleaner, environmentally conscious policies.

INVESTIGATION OF FLUID ISOTROPIZATION FOR BIANCHI TYPE - I UNIVERSE MODEL

ALI OSMAN YILMAZ, BATUHAN ÇIL, ERHAN KARA, ERTAN GÜDEKLI İSTANBUL UNIVERSITY

[email protected]

In this presentation, we used a new formalism to examined the isotropization features of the Bianchi-type models. This formalism is a general formalism for tilted fluids. We applied this formalism to the Bianchi type-I and Bianchi type-V universe models using Einstein's field equations. For the Bianchi type-I universe model in the absence of the cosmological constant, we have seen that only the stiff fluid is not isotropic. The isotropization of the other Bianchi type-I and Bianchi type-V universe models does not change with the presence of the cosmological constant, regardless of the type of fluid and other properties.

166

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ANALYSIS OF A NEW ECLIPSING BINARY WITH A DELTA SCUTI COMPONENT

DAMLA GÜMÜŞ1 AND FILIZ KAHRAMAN ALİÇAVUŞ2,3 1ISTANBUL UNIVERSITY, INSTITUTE OF GRADUATE STUDIES IN SCIENCE, PROGRAMME OF ASTRONOMY AND SPACE SCIENCES, 2ÇANAKKALE ONSEKIZ MART UNIVERSITY, FACULTY OF SCIENCES AND ARTS, PHYSICS DEPARTMENT, 3ÇANAKKALE ONSEKIZ MART UNIVERSITY, ASTROPHYSICS RESEARCH CENTER AND ULUPINAR OBSERVATORY

[email protected]

In this study, the TESS light curve of a newly discovered binary system with a pulsating Delta Scuti star was analyzed for the first time. By analyzing the photometric data, the geometric and physical parameters of the system were obtained. As a result of the obtained parameters, the absolute parameters of the system were calculated by the help of calibrations and their evolutionary status was discussed. In addition, the frequency analysis of the system was performed. The frequency corresponding to the highest amplitude was found 9.14 c/d and it has proven the binary system have a pulsating Delta Scuti component.

BI-HAMILTONIAN STRUCTURE OF (2+1)-DIMESIONAL EVOLUTIONARY HIROTA TYPE EQUATIONS

DAMLA KOCAMAN DEVRİM YAZICI YILDIZ TECHNICAL UNIVERSITY

[email protected]

Evolutionary Hirota type equations have many applications in physics and mathematics, such as nonlinear physics, general relativity, integrable systems and differential geometry. This type of equations in (2+1) dimensions are known as u_tt=f(u_t1,u_t2,u_11,u_12,u_22 ) (1) where u=u(t,z_1,z_2 ) is the unknown function and subscripts represent partial derivatives of u, namely, u_ti=(∂^2 u)/(∂t∂z_i ) ,u_ij=(∂^2 u)/(∂z_i ∂z_j ) [1]. In this work, we study bi-Hamiltonian structures of integrable equation (1) together with Lax pair and recursion operators. We start with degenerate Lagrangian for two-component form of evolutionary form of the equation and apply Dirac’s theory of constraints in order to obtain first Hamiltonian structure of the system. Then, we construct recursion operator to find second Hamiltonian structure by using symmetry condition of equations. We show that (2+1)-dimensional Hirota type equations which are integrable in the sense that they admit infinitely many hydrodynamic reductions also possess bi-Hamiltonian structures and integrable in the sense of Magri’s theorem.

[1] M.B. Sheftel, D. Yazıcı, “Evolutionary Hirota type (2+1)-dimensional equations: Laxpairs, recursion operators and bi-Hamiltonian structures”, SIGMA14 (2018) 017, 19 pages; arXiv:171201549v2 [math-ph]. 167

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE ORBITAL SOLUTION OF SOUTHERN ECLIPSING BINARY STAR: CW ERI

D. SÜRGIT1, 2, A. ERDEM2, 3,C. A. ENGELBRECHT4, 1 DEPARTMENT OF SPACE SCIENCES AND TECHNOLOGIES, FACULTY OF ARTS AND SCIENCES, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 2 ASTROPHYSICS RESEARCH CENTRE AND OBSERVATORY, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 3 DEPARTMENT OF PHYSICS, FACULTY OF ARTS AND SCIENCES, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 4DEPARTMENT OF PHYSICS, UNIVERSITY OF JOHANNESBURG

[email protected]

We made a preliminary analysis of new spectroscopic observations of eclipsing binary star CW Eri, in this study. Spectroscopic observations of the selected eclipsing binaries were made with the Cassegrain-focus-mounted “SpUpNIC” spectrograph mounted on the 1.9-m telescope at the South African Astronomical Observatory (SAAO) in 2019. The radial velocity curves of the components were obtained by the KOREL method. The mass ratio of the selected system were determined as 0.83±0.07 for CW Eri.

SPECTROSCOPIC OBSERVATIONS OF ECCENTRIC ECLIPSING BINARY STARS: TYC 5378-1590-1 AND TYC 8378-252-1

D. SÜRGIT1,2, A. ERDEM2,3, C. A. ENGELBRECHT4, F. MARANG4, 1 DEPARTMENT OF SPACE SCIENCES AND TECHNOLOGIES, FACULTY OF ARTS AND SCIENCES, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 2 ASTROPHYSICS RESEARCH CENTRE AND OBSERVATORY, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 3 DEPARTMENT OF PHYSICS, FACULTY OF ARTS AND SCIENCES, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 4DEPARTMENT OF PHYSICS, UNIVERSITY OF JOHANNESBURG,

[email protected]

In this study, a prelaminar result of spectroscopic orbital solutions of two southern eclipsing binary stars considered to be eccentric systems, TYC 5378-1590-1 and TYC 8378-252-1, are presented. The spectroscopic observations of the selected systems were made at the South African Astronomical Observatory (SAAO) during the 2020-2021 observation seasons, using the Cassegrain-focus-mounted “SpUpNIC” spectrograph mounted on the 1.9-m telescope. The radial velocities of the components of the selected systems were determined by the cross- correlation technique (CCT). The spectroscopic orbital parameters and radial velocities of TYC 5378-1590-1 and TYC 8378-252-1 were obtained.

Acknowledgments: This study was supported by TUBITAK (Scientific and Technological Research Council of Turkey) under grant number 121F203. 168

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE OPTICAL AND X-RAY VARIABILITY OF A FAINT POLAR: V1189 HER

DICLE ZENGİN ÇAMURDAN EGE UNIVERSITY

[email protected]

We present both photometric and the archival Swift observations for a polar type magnetic cataclysmic variable (MCV). The aim of this study is to obtain photometry of a faint (V ~18.7 mag) strong polar candidate located in the period-gap (2.22 h), and to search orbital variability due to the modulation related with accretion region and compare these data with X-ray observations. The Swift archival observations in Nov 2011 were used to examine the X-ray properties of the source. The optical observations are carried out with the T100 telescopes at the TÜBİTAK National Observatory. Swift XRT observation of V1189 Her yields a rough estimate of soft X-ray luminosity two orders of magnitude lower than the 10^32 erg/s typical of previously known polars. The X-ray to optical flux ratio of the system is compatible with magnetic systems.

CHARACTERIZING THE OBSERVATION BIAS IN GRAVITATIONAL-WAVE DETECTIONS AND FINDING STRUCTURED POPULATION PROPERTIES

DOĞA VESKE, IMRE BARTOS, ZSUZSA MÁRKA, SZABOLCS MÁRKA COLUMBIA UNIVERSITY

[email protected]

The observed distributions of the source properties from gravitational-wave detections are biased due to the selection effects and detection criteria in the detections, analogous to the Malmquist bias. In this work, this observation bias is investigated through its fundamental statistical and physical origins. An efficient semi-analytical formulation for its estimation is derived which is as accurate as the standard method of numerical simulations, with only a millionth of the computational cost. Then, the estimated bias is used for model independent inferences on the binary black hole population. These inferences show hints of additional structures, which were not found via modelled inferences. Example ready-to-use scripts and some produced datasets for this method are shared in an online repository.

169

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SEARCH FOR BLACK HOLE MERGER FAMILIES

DOĞA VESKE, ANDREW G. SULLIVAN, ZSUZSA MÁRKA, IMRE BARTOS, K. RAINER CORLEY, JOHAN SAMSING, RICCARDO BUSCICCHIO, SZABOLCS MÁRKA COLUMBIA UNIVERSITY

[email protected]

The origin, environment, and evolution of stellar-mass black hole (BH) binaries are still a mystery. One of the proposed binary formation mechanisms is manifest in dynamical interactions between multiple BHs. A resulting framework of these dynamical interactions is the so-called hierarchical triple-merger scenario, which happens when three BHs become gravitationally bound, causing two successive BH mergers to occur. In such successive mergers, the BHs involved are directly related to each other, and hence this channel can be directly tested from the properties of the detected binary BH mergers. Here we present a search for hierarchical triple mergers among events within the first and second gravitational-wave transient catalogs of the Laser Interferometer Gravitational- Wave Observatory/Virgo, the eccentric localization of GW190521, and those found by the IAS-Princeton group. The search includes improved statistical quantification that also accounts for BH spins. We perform our analysis for different upper bounds on the mass distribution of first-generation BHs. Our results demonstrate the importance of the mass distributions' properties for constraining the hierarchical merger scenario. We present the individually significant merger pairs. The search yields interesting candidate families and hints of its future impact.

A STUDY ABOUT HEATING SOLAR CORONAL HOLE PLASMA

EBRU BAŞ, DICLE ZENGIN ÇAMURDAN EGE UNIVERSITY

[email protected]

The problem of heating the solar corona is an area of solar physics that is still heavily studied and highly controversial. We investigate the dissipation of MHD waves using the SOHO satellite data on electron distribution, temperature and non-thermal line width variations in the plume/interplume lane structure of the North Polar Coronal Hole (NPCH). The effects of the isotropic viscosity on the propagation characteristics of incompressible MHD waves in NPCH are taken into account in the constructed model. We derive the dispersion relation and calculate the damping length scales and wave energy fluxes. We will present the preliminary results about the contribution of MHD waves that would cause solar wind acceleration and heating of the corona in this context. 170

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A TRANSIT COSMOLOGICAL MODEL IN F(R,T) THEORY OF GRAVITY

E. BAYSAZAN, R.K. TIWARI, D. SOFUOĞLU İSTANBUL UNIVERSITY

[email protected]

In this study, homogeneous and isotropic FRW model is studied in f(R,T) theory of gravity. The solution of the field equations is obtained by using a special form of the Hubble parameter in terms of the scale factor. This choice of the Hubble parameter yields a decleration parameter which may explain the phase transition of the universe in expansion. The obtained model is analyzed and discussed by expressing the physical and geometrical parameters in terms of redshift.

EXAMINATION OF FLUID ISOTROPIZATION FOR BIANCHI TYPE - V UNIVERSE MODEL

ALI OSMAN YILMAZ, BATUHAN ÇIL, ERHAN KARA, ERTAN GÜDEKLI İSTANBUL UNIVERSITY

[email protected]

In this presentation, we used a new formalism to examined the isotropization features of the Bianchi-type models. This formalism is a general formalism for tilted fluids. We applied this formalism to the Bianchi type-I and Bianchi type-V universe models using Einstein's field equations. For the Bianchi type-I universe model in the absence of the cosmological constant, we have seen that only the stiff fluid is not isotropic. The isotropization of the other Bianchi type-I and Bianchi type-V universe models does not change with the presence of the cosmological constant, regardless of the type of fluid and other properties.

171

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ANALYSIS OF A TESS FIELD OEA SYSTEM TZ DRA

F. KAHRAMAN ALICAVUS, G. HANDLER, F. ALICAVUS, P. DE CAT, P. LAMPENS, O. EKINCI, D. GUMUS, F. LEONE CANAKKALE ONSEKIZ MART UNIVERSITY, NICOLAUS COPERNICUS ASTRONOMICAL CENTER

[email protected]

Oscillating eclipsing Algols (oEA) are semi-detached systems including one main- sequence B-F pulsating star and one evolved component which transfers its matter to the pulsating component through the 1st Lagrangian point. As we are able to obtain precise fundamental stellar parameters (mass, radius) with the simultaneous analysis of radial velocity changes and binary light curves, these systems are beneficial to examine the binary evolution and their pulsations in great detail. In this study, we introduce the results of our comprehensive photometric and spectroscopic analysis of oEA system TZ Dra. As a result, we derived the fundamental stellar and atmospheric parameters and investigated the pulsational variations. The Halpha lines show clear evidence of mass transfer in the system. The mass transfer/loss from the system was supported with the orbital period variation analysis. We derived a mass loss rate of 3.52x10−10 M⊙/year for TZ Dra. The matter leaves the system most probably through the hotspot on the primary component and winds. The analysis of pulsations also revealed that the system is a tidally tilted pulsator.

This study has been supported by the Scientific and Technological Research Council (TUBITAK) project through 120F330.

DYNAMICS OF F(R) COSMOLOGIES CONTAINING EINSTEIN STATIC MODELS FOR BIANCHI TYPE-I

GIZEM DILARA AÇAN YILDIZ, ERTAN GÜDEKLİ İSTANBUL UNIVERSITY

[email protected]

We study the dynamics of homogeneous anisotropic Bianchi Type-I cosmologies with positive spatial curvature in f(R) gravity, paying special attention to the existence of Einstein static models and only study forms of f(R)=R^n for which these static models have been shown to exist. In this paper, we use the theory of dynamical systems to examine in detail the background evolution of this special class of f(R) theories. This analysis provides a more complete picture of how the Einstein static solution fits into the overall structure of the phase space of solutions in f(R) gravity.

172

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DEVELOPMENT OF A PARALLEL GREEN’S FUNCTION PROPAGATOR ALGORITHM FOR HIGH-ORDER HARMONIC GENERATION SIMULATIONS

GÖKHAN İLHAN, ERDİ ATA BLEDA MARMARA UNIVERSITY

[email protected]

Machine learning (ML) theory is developing very rapidly, and it finds applications in many different fields including physics. In this study, we approach the well-known 2- body problem with deep learning which is a subfield of ML. We use artificial neural network (ANN) to predict the trajectories of the bodies for bound orbits. Approximately, 107 data points are generated for the data set by directly solving the coupled differential equations in the center of mass coordinate system using 8th order Runge-Kutta integration scheme with different initial conditions. The ANN we construct consists of 10 hidden layers with 100 nodes per layer. The input layer consists of 5 nodes; one for the time and others for the initial angular momentum, radial distance, radial velocity, and angle. The output layer consists of 2 nodes; one for the radial distance and one for the angle. We predict the radial distance with mean absolute error (MAE) less than 1%, and the angle with MAE less than 2%.

THE EFFECTS OF THE SHAPE ON SKYRMION PHASES IN MAGNETIC NANODOTS

GÜLŞEN KARAKOYUN, ÜMIT AKINCI DOKUZ EYLÜL UNIVERSITY

[email protected]

Magnetic skyrmions which is spin textures has topological stability is whirl like nano- object that used as information carriers in ultra-dense memory and logic devices. Micromagnetics is a continuum theory of ferro or ferrimagnetic materials, which allows for the computation of magnetization distributions in samples of arbitrary shape. In this study, skyrmion phases has been investigated by micromagnetic simulations for the magnetic nanodots. OOMMF (Object Oriented MicroMagnetic Framework) has been used for micromagnetic simulations. By detailed investigation on the shape dependence of the skyrmion phases are inspected. The basis of the skyrmion phases was obtained due to the competition between local energies Dzyaloshinskii–Moriya interaction (DMI), anisotropy and Zeeman energies. 173

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AN ANTERNATIVE APPROACH TO THE GRAVITY II: THE NON- ABELIAN WEYL-YANG-KALUZA-KLEIN THEORY

HALIL KUYRUKCU ZONGULDAK BÜLENT ECEVİT UNIVERSITY

[email protected]

The third-order Weyl-Yang gauge theory is studied by considering the higher- dimensional usual non-Abelian Kaluza-Klein framework. The four-dimensional reduced form of the quadratic curvature, the field equations, and the energy-momentum tensors are obtained by employing the noncoordinate basis without considering any dilaton fields. It is demonstrated that not only the resulting equations can be written in terms of the equations of motion of the standard non-Abelian Kaluza-Klein theory but also those contain the generalized gravitational source-like and the Yang−Mills force density-like terms in the homogeneous coset space.

UNIFIED TREATMENT OF QUANTUM MECHANICAL PHASE EFFECTS ON ENTANGLED QUANTUM STATES

HASAN ÖZGÜR ÇILDIROĞLU, ALI ULVI YILMAZER ANKARA UNIVERSITY

[email protected]

Quantum entanglement is one of the most important fields of study in physics today. To better understand quantum entanglement which has no classical manifestation and to reveal its connections with other quantum mechanical processes that seem to have common origins theoretical and experimental research continues in full swing. On the other hand, quantum mechanical phases the milestones in the development process of classical electromagnetism and quantum mechanics have a wide range of applications from optics to materials physics. In this study, the topological and geometric phases, and the quantum entanglement are considered together in a gedanken EPR-Bohm type hybrid experimental setup. The effects of the geometric phases that emerge under the adiabatically rotating magnetic field and the topological phases that emerge in the presence of some topological singularities in the space on spin entangled quantum systems will be unified in the view of dependence of the phases on spin orientations of moving particles.

174

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STRONG ENERGY CONDITION VIOLATION OF THE BIANCHI TYPE-V UNIVERSE MODEL

BATUHAN ÇIL, İREM ÇEVIK, ERHAN KARA, ERTAN GÜDEKLI İSTANBUL UNIVERSITY

[email protected]

In this research, we examined the horizon problem, which is one of the consequences of cosmic inflation, within the framework of the Bianchi type 5 universe model. While doing this review, we proved that there is no horizon problem in our cosmological model by showing that the horizon problem cannot be solved without neglecting the strong energy condition, and we discussed the results we obtained.

EFFECT OF MAGNETIC FIELD FLUCTUATIONS ON CORONAL WAVES

KHURAMAN AZIZOVA, EBRU DEVLEN EGE UNIVERSITY

[email protected]

The Sun is the nearest laboratory that we have been using to understand fundamental astrophysical processes in stars. But it has some basic problems which have not yet been fully explained. Especially North Polar Coronal Hole (NPCH) has been observed by various satellites such as Helios, Yohkoh, Wind, SOHO, Hinode, TRACE, etc. Observations show that the NPCH has an average temperature of 10^6 to 10^8 K. Although the solar corona suffers huge energy losses due to radiation and thermal conduction, the underlying physical process of this high temperature has not yet been understood. Magnetohydrodynamics processes are one of the mechanisms that could explain the heating of similar layers of the solar corona, chromosphere, and other stars. The aim of our study is to investigate where the MHD waves are damped using damping length scales and whether their energy is sufficient to heat the corona by solving the nonlinear MHD equations obtained by taking into account the magnetic field perturbation values and the heat conduction. Because the magnetic field disturbance values vary 0.1- 0.87 in the range from the analysis of the simultaneous observations at Helios and Earth- based stations, these terms are not ignored. Considering these values, assuming that the perturbations are in the form of space-time changes, a dispersion relation will be found after a few vector operations. This relation tells us the physical wave modes that will emerge.

175

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

APPLICATION OF TIME-FRACTIONAL LOGISTIC EQUATION ON GLIOBLASTOMA

KOZMA ÇUPI*, HÜSEYIN ŞİRİN**, ABDULLAH ENGIN ÇALIK** EGE UNIVERSITY

[email protected]

The mathematical models have important role in examining and simulating experiments of the dynamics of complex systems. These models are techniques that can help us to understand and to simulate complex systems quickly in the study of variations in laboratory experiments and biological processes without any cost. In this work, mathematical models of tumor growths have been discussed, especially on brain tumors, in which growth primarily comes from cellular proliferation. The example of this study that has been considered such a biological process is the growth of Glioblastoma in terms of volume over time. The problen has been examined by mathematical growth models such as exponential, logistic, Gompertz and time-fractional order logistic models. Finally, Gompertz and time-fractional order logistic models have been compared by Glioblastoma clinical volume values.

ENTANGLEMENT MEASURES IN CONNECTION WITH THE GEOMETRIC PHASE FOR A HYBRID AHARONOV–CASHER (AC) SETUP

MELIK EMIRHAN TUNALIOĞLU, HASAN ÖZGÜR ÇILDIROĞLU, ALI ULVI YILMAZER ANKARA UNIVERSITY

[email protected]

Correlation relations for a pair of entangled magnetic dipoles (neutrons) scattered by two different sources of line electric charges in an AC-EPR type setup are investigated. Concepts of concurrence, quantum discord and teleportation fidelity are used to clarify how the geometric phase affects the biparticle states.

176

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AN ECONOPHYSICS APPLICATION TO THE PORTFOLIO OPTIMIZATION FOR BIST 100

MERVE KOCAMAN, BUĞRA KOCAMAN HACETTEPE UNIVERSITY

[email protected]

Econophysics is an interdisciplinary concept that emerged from the laws of physics to solve some financial problems. In this study, there will be an econophysics application on portfolio optimization with bringing a different approach, namely entropy. It has been proposed that entropy is a more comprehensive measure to understand uncertainty compared with the mean-variance method. For that purpose, a portfolio will be selected from BIST 100 between 2010-2020. Afterward, the mean-variance analysis method, frequently used, will be compared with entropy.

BASIC CONCEPTS OF NONLINEAR DYNAMICAL SYSTEMS

MESUT KAVAL, HASAN TATLIPINAR YILDIZ TEKNIK UNIVERSITY

[email protected], [email protected]

Studies on nonlinear dynamical systems gained importance in the last quarter of the last century, and in the first quarter of this century, they became an important focus of interest in both natural and social sciences. Dynamic systems are systems in which the system changes according to certain parameters. These parameters mathematically correspond to a wide variety of quantity, and for physical systems, they correspond to the measurable time, number of steps, temperature, height, etc. of the system. According to these parameters and initial conditions the observations we make in nature or the measurements we produce in the laboratory we obtain constant, periodic, chaotic or noise values. Periodic or near-periodic changes can be examined with analysis methods based on linear theories. Nonlinear systems are often considered as the perturbed state of a linear system, and the system is studied by linearizing it under certain approaches. While this is suitable for some system behaviour and practical purposes, it does not work correctly for many real systems. Therefore, new approaches and methods are required for the analysis of nonlinear dynamical systems. In this presentation will focus on the behaviour of dynamic systems when they go from equilibrium to unstable (or vice versa). For this purpose, we will focus on methods such as bifurcation theory, catastrophe theory, fractal geometry and time series analysis.

177

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SPECTROSCOPIC STUDY OF DG MIC AND V1041 SCO

M. KUZ1,2, D. SÜRGIT1, 2, 1 DEPARTMENT OF SPACE SCIENCES AND TECHNOLOGIES, FACULTY OF ARTS AND SCIENCES, ÇANAKKALE ONSEKIZ MART UNIVERSITY, 2 ASTROPHYSICS RESEARCH CENTRE AND OBSERVATORY, ÇANAKKALE ONSEKIZ MART UNIVERSITY,

[email protected]

The first spectroscopic study of two eclipsing binary stars, DG Mic and V1041 Sco, selected from the southern hemisphere, is presented. Spectral observations of the stars were made at the South African Astronomical Observatory (SAAO) during the 2020 observating season, using the 1.9 m telescope equipped with the SpUpNIC medium-resolution spectrograph. Observations were made using grating spectra in the 4000-5000 Å wavelength range. The radial velocity curves of the components were obtained using the cross-correlation (CCF) method and the orbital parameters of DG Mic and V1041 Sco were determined. According the orbital solutions, the mass ratios of the systems are 0.98±0.06 and 1.39±0.08, respectively.

Acknowledgments: This study was supported by the Scientific Research Project (BAP, Bilimsel Araştırma Projesi) of Çanakkale Onsekiz Mart University with the number FYL- 2020-3328.This work is part of Mücahit Kuz’s master thesis.

TESS PHOTOMETRY OF AN OEA STAR: UZ SGE

BURCU ÖZKARDEŞ, FILIZ KAHRAMAN ALİÇAVUŞ, ÖZLEM EKİNCİ ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

Thanks to the space telescopes, it is now possible to determine the stellar parameters and examine the pulsational characteristic of oscillating stars in more detail. The space data have been extremely contributed to improving our knowledge, especially in the eclipsing binaries with a pulsating component. In this study, we present the analysis of TESS data of oscillating eclipsing Algol (OEA) UZ Sge. The long cadence (LC) TESS data were used to carry out binary modelling and frequency analysis. As a result, we determined the orbital parameters and estimated the fundamental stellar parameters of UZ Sge. The pulsational characteristic was also examined with LC data in which the Nyquist frequency is around 24 c/d and some significant frequencies Delta Scuti type frequencies were found.

This study has been supported by the Scientific and Technological Research Council (TUBITAK) project through 120F330. This study forms part of the M.Sc. studies of Ö. Ekinci.

178

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AN ALGOL TYPE ECLIPSING BINARY OBSERVED BY THE TESS SATELLITE: V959 PER

BURCU ÖZKARDEŞ, ÖZLEM EKİNCİ ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

We present the analysis of the Algol type eclipsing binary V959 Per using the long cadence (LC) TESS data. As a result, the geometric and physical parameters of the system were determined. The (O-C) diagram was formed with both published minima and TESS eclipsing times determined in this study, and the new light elements was obtained. The mass and radius of the primary and secondary component was found. Also, the evolutionary status of V959 Per is discussed.

This study forms part of the M.Sc. studies of Ö. Ekinci.

DISCRETE ROGUE WAVES IN COMPLEX CUBIC VOLTERRA EQUATION

SEMIHA TOMBULOĞLU KIRKLARELI UNIVERSITY

[email protected]

We study discrete rogue waves in a complex cubic Volterra equation. We numerically solve complex cubic Volterra equation under periodic boundary conditions. If an appropriate initial condition is provided, discrete rogue waves occur. We show that their amplitudes gradually increase and are periodic in the propagation direction.

179

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DETERMINATION OF MAGNETIC PROPERTIES WITH ARTIFICIAL NEURAL NETWORKS

SEVDA SALTIK, ÜMIT AKINCI DOKUZ EYLÜL UNIVERSITY

[email protected]

While artificial neural networks and deep learning take an increasingly wider place in daily life and technology, it is also rapidly making a place for itself in the field of physics. In recent years, studies on the possibilities of use in a wide range, from solutions of differential equations emerging in the formulations of physical models to various particle physics applications, have accelerated. This study discusses the application of Boltzmann machines, which can ''learn'' a given probability distribution, to basic magnetic model solutions. The Ising model, which is the basic model of magnetism, was taken as the Markov chain learning set, which was created by the Monte Carlo simulation method, and the constrained Boltzmann machine was created and by learning the probability distribution of the system, it was provided to generate microstates suitable for the probability distribution. By examining the dependence of the results on the structure and parameters of the Boltzmann machine, the future of the applications of artificial neural networks in this field is discussed.

EFFECT OF MARKOVIAN AND NON-MARKOVIAN REGİMES ON HEAT FLUX

ŞAHİNDE KESGİN* AND BARIŞ ÇAKMAK İSTANBUL UNIVERSITY

[email protected]

All quantum systems inevitably interact with their environment. The dynamics of these systems are described in the framework of open quantum systems theory. One of the most important methods used in this field in recent years has been to understand dynamics using collision models. The most important reason for this is that collision models provide a platform suitable for describing very different dynamic properties in a very simple way. Within the framework of collision models, the environment consists of many similar particles, the system particle makes short interactions with these surrounding particles, and then the surrounding particle is removed from the dynamics. In this study, we created a collision model code on the computer and examined the different dynamical regimes of our system. We also examined the heat flux between system and environment for these different regimes (Markovian and non-Markovian). 180

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SEARCHING FOR CANDIDATE ECLIPSING BINARY DELTA SCUTI STARS IN THE TESS FIELD

TOBIASZ GALL FILIZ KAHRAMAN ALICAVUS UNIVERSITY OF WROCŁAW

[email protected]

Transiting Exoplanet Survey Satellite (TESS) has observed almost the all-sky and provided a significant amount of data for stellar systems. Thanks to these high-quality data, many new variable stars have been discovered and their properties were examined in detail. In this study, we present the result of our TESS filed search to find new eclipsing binaries with Delta Scuti components. Eclipsing binary Delta Scuti (EBDS) stars are unique systems to derive both the fundamental stellar parameters and investigate the internal structure of stars via pulsation frequencies. In our study, we selected some candidates by taking into account the light curves and effective temperature values. A Fourier analysis was carried out to these candidates to remove the binarity effect from the light curve. After that, a frequency analysis was carried out to residuals. The stars showing frequencies over 5 c/d and having a proper effective temperature were defined as a new EBDS star. Consequently, we found some new EBDS stars which were not known in the literature and determined their pulsation constant, modes and show their position in the H-R diagram.

This study has been supported by the Scientific and Technological Research Council (TUBITAK) project through 120F330.

DETERMINATION OF THE FUNDAMENTAL PARAMETERS OF GIANT STARS OF SEVERAL F AND G SPECTRAL CLASSES

SAMEDOV Z.A., RUSTEM U.R. BAKU STATE UNIVERSITY

[email protected]

Investigation of atmosphere of stars is an important issue from the point of view of the evolution of stars. An initial step in an abundance analysis is the determination of the principal stellar fundamental parameters: the effective temperature Teff the surface gravity logg the iron abundance log ɛ (Fe) and microturbulent parameter ξt. If we know fundamental parameters, can find evolution parameters (radiuses, stellar masses, ages and luminosities) of the stars. Effective temperature of the star and surface gravity are determined by comparing photometric and spectral indexes. As photometric indexes we used the following indexes 1. Comparison of the values of indece [c1] determined as from observation and from theoretical calculations. 2. Comparison of observation and theoretically calculated values of Q indece. 3. Comparison of observation and theoretically calculated values of β indece. 4. Method using of parallax. This method is considered to be a new technique for the measurement the effective temperature of stars and surface gravity.

181

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MAGNETOCALORIC PROPERTIES OF THE LOW DIMENSIONAL MAGNETIC SYSTEMS

ÜMIT AKINCI DOKUZ EYLÜL UNIVERSITY

[email protected]

Magnetocaloric effect is defined as a temperature change in the material subject to the changing magnetic field. It has important technological application areas such as cooling technology and cancer treatment applications. Thus it is crucial to determine the magnetocaloric properties of magnetic systems. Low dimensional magnetic systems have interesting magnetic properties, which come from the reduced dimensionality of the system. These interesting properties also show themselves in the magnetocaloric effect. Multi peak behavior in the magnetic entropy change by the temperature is one of these properties. This interesting property can be used for enhancing the magnetocaloric performance of the system. This presentation includes results of the theoretical determination of the magnetocaloric properties of the magnetic systems. Above mentioned multi peak behavior in low dimensional systems has been determined theoretically, and physical mechanisms behind that behavior explained. Besides, tunning of the magnetocaloric performance of the materials by changing dimensionality or adjusting the material's parameters of the system has been discussed.

182

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Medical Physics and Applications

183

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A STUDY FOR MASS ATTENUATION COEFFICIENTS OF DIFFERENT PARTS OF THE HUMAN BODY THROUGH MONTE CARLO METHOD

ALI, H. M. A.* AND YILMAZ, M GAZIANTEP UNIVERSITY

[email protected]

In this wok, mass attenuation coefficients of some low-Z dosimetric materials with potential applications in dosimetry, medical and radiation protection have been investigated by using the simulation based on Helmholtz equation. The model is designed under COMSOL Multiphysics software to calculate the gamma-ray mass attenuation coefficients of blood, bone, lung, eye lens, adipose, tissue, muscle, brain and skin. The results have been compared with some related works that utilized some various theoretical methods such as FLUKA, GEANT4 using the Monte Carlo (MC) methods and XCOM program and also compared with the National Institute of Standards and Technology (NIST) values. Appreciable variations are noted for the mass attenuation coefficient by changing the photon energy. The obtained results are in good agreement and in accordance with other methods and NIST values and the results shows that the COMSOL program can be a useful alternative tool for medical physics applications.

184

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

REGULATION OF THE 2100 MHZ MOBILE PHONE INDUCED DNA METHYLATION BY SELENIUM IN 3T3 FIBROBLAST CELLS

DILEK DUZGUN ERGUN ISTANBUL AYDIN UNIVERSITY

[email protected]

The adverse biological effects of electromagnetic field (EMF) emitted by mobile phones at the cellular level are associated with oxidative stress, apoptosis, DNA damage due to increased reactive oxygen species, but still remains unclear. DNA methylation, which occurs in the process of tissue regeneration, is an important process in gene expression and regulation of protein and DNA metabolism. A deterioration in methylation is considered as an indication that the organism has entered a process leading to cancer [1-3]. Selenium (Se) is an antioxidant that protects cells against oxidative stress and DNA damage by optimizing the activity of glutathione peroxidase and thioredoxin reductase as well as several other selenoproteins [4]. We aimed to evaluate effect of selenium (200 nM, 48 h) in DNA methyltransferase (DNMT) activity induced by 2100 MHz mobile phone EMF (2 h) in 3T3 fibroblast cells. Materials and Methods: 3T3 fibroblast cells were divided to four groups as control, sham control, 2100 MHz EMF, and 200 nM Se + 2100 MHz EMF. DNMT activity was measured in the prepared nuclear extracts and calculated using the following formula [DNMT activity (OD/h/mg) = ((Sample OD-Blank OD))/((Protein Amount (µg) x hour)) x1000]. Results and Conclusion: DNMT activities were a significant increase in the 2100 MHz EMF group compared to the control group (p<0.01), although were statistically decreased in the 200 nM Se + 2100 MHz EMF groups compared to the 2100 MHz EMF group (p<0.001). In conclusion, it is predicted that the 2100 MHz EMF increases DNMT activation in 3T3 fibroblast cells and selenium may play a supportive role by affecting these mechanism.

Key words: DNA damage, 3T3 fibroblast cells, Mobile phone, Selenium References 1.Kumar, R., Deshmukh, P.S., Sharma, S. and Banerjee, B.D. (2021). Effect of mobile phone signal radiation on epigenetic modulation in the hippocampus of Wistar rat. Environ Res, 192:110297. 2.Ertilav, K., Uslusoy, F., Ataizi, S. and Naziroglu, M. (2018). Long term exposure to cell phone frequencies (900 and 1800 MHz) induces apoptosis, mitochondrial oxidative stress and TRPV1 channel activation in the hippocampus and dorsal root ganglion of rats. Metab Brain Dis, 33(3):753-763. 3.Gros, C., Fahy, J., Halby, L., Dufau, I., Erdmann, A., Gregoire, J.M. et al. (2012). DNA methylation inhibitors in cancer: Recent and future approaches. Biochimie, 94(11):2280-2296. 4.Kahya, M.C., Naziroglu, M., Cig, B. (2014). Selenium reduces mobile phone (900 MHz)-induced oxidative stress, mitochondrial function, and apoptosis in breast cancer cells. Biol Trace Elem Res, 160(2):285-293. Funding: The present work was supported by the Research Fund of Istanbul Aydin University. Project No:6309.

185

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECTS OF ZINC AND MEDIUM OSMOLALITY ON A549 CANCER CELL LINE

DUYGU TARHAN, ALEV MELTEM ERCAN İSTANBUL UNIVERSITY-CERRAHPASA

[email protected]

Zinc has an important role in cell division, cell growth, differentiation, and development. It also helps to maintain intracellular ion homeostasis and essential in members of signaling molecules, enzymes, and transcription factors. Moreover, changes in the osmolality of the extracellular medium affect cell volume and cellular processes such as cell migration and proliferation. Not only high concentrations of zinc may lead to cell death by apoptosis, but also zinc is a physiological suppressor of apoptosis. The aim of our study is to examine whether zinc and regulation of extracellular osmolality have a therapeutic effect on the lung cancer cell line and how to be changes in an extracellular medium according to elements and osmolality depending on incubation time and zinc application. Our study on the A549 lung cancer cell line consists of four groups: cell-free medium, extracellular medium of cancer cell after 24 h incubation, extracellular medium of cancer cell after 48 h incubation, and extracellular medium of cancer cell after 48 h incubation with ZnCl2. For all groups were measured extracellular medium osmolality by using freezing point osmometer device and the levels of chromium (Cr), iron (Fe), and magnesium (Mg) elements using ICP-OES (Inductively Coupled Plasma Optical Emission Spectroscopy) device. As a result of the measurements, a statistically significant difference was found when the extracellular medium that was not incubated with zinc was compared with the medium in which zinc was applied. It was observed that there was a decrease in the levels of Cr, Fe, and Mg with zinc application and incubation period in the extracellular medium. The regulation of extracellular medium osmolality is a promising method due to the biophysical effects on cancer cells. In our study, we speculated that the understanding of the effects of zinc and osmolality with the relationship between extracellular medium and cancer cell may lead to the discovery of biophysical approaches as a novel therapeutic strategy.

Keywords: A549; osmolality; zinc; extracellular medium.

186

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PHYSICAL AND DOSIMETRIC CHARACTERISTIC PROPERTIES OF BEO OSL FOR CLINICAL DOSIMETRIC MEASUREMENTS

ESIL KARA, AYSE HICSONMEZ ANKARA UNIVERSITY

[email protected]

The study aims to figure out the physical and the dosimetric characteristics of the Beryllium Oxide (BeO) optically stimulated luminescence dosimeters (OSLDs) system and to investigate the ability to use OSLDs for machine quality assurance measurements by using necessary factors as mention in AAPM 191 for dose calculation. Methods: OSLs were irradiated with 6 MV, 10 MV, and 15 MV photon beams using Elekta Versa HD linear accelerator. The measurements were taken by placing BeO OSLs at the maximum dose depth and ion chamber at the reference depth for each energy at the source surface distance (SSD) at 100 cm. For the angular/directional dependence test, the setup for the cylindrical phantom was the same as the slab phantom, but a SAD of 100 cm was set to the isocenter of the phantom and center of the OSL dosimeter. The tests performed were reproducibility/sensitivity, dose-response linearity, energy dependence, angular dependence, field size dependence and SSD dependence. As a result of the tests, correction factors were obtained, and the OSL measurement accuracy was increased by using these factors. Results: Reproducibility/sensitivity and angular dependence are smaller than %2, dose-response linearity and energy dependence are smaller than %1. After making SSD corrections as recommends in IAEA Human Health Reports No:8, the dependency of SSD is %3 for SSD 80 and smaller than %2 for other SSDs. Field size dependence is larger than %2. kL, for linearity, kQ for beam quality, kƟ for angular dependence, kSSD for SSD correction, kField for field correction are obtained for all energies. Conclusion: It is possible to increase the accuracy of measurements with OSLDs when all factors are obtained and added to the measurement results. Using BeO OSLD in radiotherapy measurements is promising with further studies.

187

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DEFAULT-MODE NETWORK ALTERATIONS IN CORRELATION WITH DEPRESSION SCORES IN PEDIATRIC SLE PATIENTS

HACER DAŞGIN, MÜŞERREF KASAP CÜCEOĞLU, SELCAN DEMIR, TUNA ÇAK, EBRU KÜLTÜR, YELDA BILGINER, SEZA ÖZEN, KADER KARLI OĞUZ BILKENT UNIVERSITY

[email protected]

Systemic Lupus Erythematous (SLE) is a systemic autoimmune disease with multi-organ involvement including the brain. Functional MRI (fMRI) is complementary technique in investigation of brain connectivity changes in systemic diseases like SLE. Methods: Resting state networks were extracted from 18 SLE patients, without neurologic involvement and 13 age-sex matched healthy controls (HCs). Within and between group comparison maps were revealed. A relation between brain activity and depression was searched. Two-sample t-tests were used to analyze the differences between the SLE and HC groups with p value (uncorrected, p < .001, cluster > 5 voxels and cluster threshold p < 0.05) Results: In DMN, SLE patients showed decreased activation in the vermis, bilateral thalami and precuneus prominent on left and right hippocampus, and increased activation in right inferior temporal gyrus than HCs significantly. (patients>controls). As assessed by childhood depression inventory (CDI) , depression showed a positive correlation (with increased activation in inferior temporal gyrus and a negative correlation with decreased activation in the vermis, left insula, middle occipital gyrus and thalamus. Conclusion: Although asymptomatic, SLE patients showed significant alterations in DMN network when compared to HCs and these activation changes had correlations with depression scores.

188

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CALCULATION OF STOMACH WALL DOSES FOR PATIENTS WITH HEPATOCELLULAR CARCINOMA USING MONTE CARLO SIMULATIONS

ÖZLEM YILDIRIM, AYHAN BİNGOLBALİ, AHMET BOZKURT, MEHMET ONUR DEMİRKOL ALTINBAŞ UNIVERSITY

[email protected]

Liver is one of the largest organs in human body and consists of various cell groups. Benign or malign tumors can occur in any of these cells which may arise from the liver's own cells or may occur as a result of metastases in other organs. The first method of treatment for liver tumors is surgical resection, but because of the late diagnosis of most patients and metastases of other organs, it may be applied only to a limited number of patients. The subject of this study is hepatocellular carcinoma which is a primary tumor of liver that usually develops in hepatitis carrier and cirrhosis. Barcelona Clinical Liver Cancer (BCLC) stages have published treatment methods for hepatocellular carcinoma. The radioembolization method, which is also present in the BCLC stages, should be applied in patients with advanced primary and metastatic liver tumors who develop resistance to chemotherapy, side effects come to the fore, and chemoembolization treatment cannot be applied due to the development of portal vein thrombosis. This method is a palliative treatment method. Before radioembolization treatment, a test angiography is performed on the patient, and as a result of which Yttrium 90 (90Y) is given to the patient at the most appropriate activity. Clinically, dosimetric calculations involve the patient's liver, any tumors in the liver, and the lung. In such calculations, it is generally assumed that the 90Y microspheres show a homogeneous distribution, but there is no actual uniform distribution. This situation shows a great variation depending on whether there is any necrosis of tumor cells. If so, its size creates uncertainty. Therefore, using internal dosimetry leads to some uncertainties. So, Monte Carlo (MC) simulations can be used to avoid such uncertainties and to carry out precise dosimetric calculations. With Monte Carlo coding, it is possible to design and develop simulations, especially in the fields of medical imaging, radiotherapy and internal dosimetry. Thus, it becomes easier to perform treatment simulations. In this study, MCNP5 version of MCNP (MC-n particle transport code) code was employed. The radioembolization studies of 30 patients were simulated to obtain dose calculations. Medical Internal Radiation Dose(MIRD) calculations were also performed for each case. Here, the radioactive material 90Y impregnated with glass microspheres (TheraSphere) was selectively given to the patient. In this presentation, simulation and calculation results for the stomach wall close to the tumor area and liver is discussed along with radiation doses for the stomach wall and organs in the vicinity of liver. The maximum stomach wall dose was obtained as 2.534 Gy, while the minimum stomach wall dose was 9.98*10-4 Gy. These values are lower than the critical radiation doses that can damage the stomach. Hence, in the dose planning made before the treatment, doses to which the organs are exposed can be seen in advance and the amount of activity to be applied to the patient can be revised.

189

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE IMPACT OF COVID-19 ON RADIOLOGY PROFESSIONALS

TÜRKAN ÖZBAY*, ÇAĞATAY ÖZBAY, ÖZGÜL VUPA ÇİLENGİROĞLU İZMIR EKONOMI UNIVERSITY

[email protected]

This study aimed to investigate radiology professionals’ response to the impact of COVID-19 on professional practice. In addition, the fear and anxiety levels experienced by this workforce during the pandemic process were investigated. Methods: A quantitative cross-sectional study was conducted. The questionnaire covered information on demographic characteristics, the Coronavirus Overviews and Impacts, the Coronavirus Anxiety Scale (CAS), and the Fear of COVID-19 Scale. Logistic regression was used to model the relationship between "CAS" and "Fear" scores and variables. Data collected was analysed using the Statistical Package for Social Sciences (v.24). Results: A total of 290 responses were received, comprising 21.7% radiologists and 78.3% technicians. The key contributor factors to work-related stress were found to be the fear of COVID-19 infection, with 63.8%, the increase in workload, with 17.6% and inadequate personal protective equipment (PPE), with 11%. The percentages of anxiety were 75.6% for technician and 24.4% for radiologist. It was found that there was a significant association between "CAS" score and the gender variable (p=0.030<0.05), and similarly, between "Fear" score and gender (p-value=0.003) and age (p-value=0.080) variables. The women are 2.205 times more likely to be anxious than men (p=0.033) and 2.106 times more likely to be fear (p=0.003). Conclusion: Almost half of the participants reported adequate PPE availability during the study period. Despite this, most feared being infected with COVID- 19. Therefore, it is important to provide timely and adequate personnel training, adequate availability of PPE and regular psychosocial support for radiology professinals, during future pandemics.

190

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECTS OF TEMPERATURE AND LASER POWER ON RB POLARIZATION FOR HYPERPOLARIZER XENON-129 MRI

YENAL GÖKPEK, ÖZGÜN BORAY YURDAKOŞ, ÖZKAN DOĞANAY EGE UNIVERSITY

[email protected]

For magnetic resonance (MR) imaging of lung there is a strong interest in using hyperpolarized noble gases ( i.e. Xenon-129, Helium-3). An obstacle for clinical use of this novel MRI contrast mechanism is the quality of hyperpolarization levels of Xenon gas. One of the most common techniques for production of hyperpolarized 129Xe gas is Spin Exchange Optical Pumping (SEOP) of Rubidium-87 vapor. Optimization of SEOP affects the quality of 129Xe gas hyperpolarization significantly through (i) 87Rb vapor density associated to cell temperature and (ii) the polarization of 87Rb vapor depending of absorption profiles of circularly polarized laser. The popularity of the usage of 87Rb vapor is directly related to the already available narrow band laser technology at Rb-D1 transition frequency, which is commercially reachable. It is also known that in order to reach high optical pumping values, high cell temperatures are required. High temperatures increase 87Rb vapor density, which in turn allows better laser light absorption. This study focuses on the optimization of the cell temperature and lase power using numerical simulations for development of a batch-mode SEOP system. Numerical simulations were performed in MATLAB for optimizing SEOP polarization of 87Rb in a glass cell (polarization cell). As first step, glass polarization cell dimensions were estimated by solving SEOP differential equations with respect to laser power and temperature. Knowing the approximate dimensions, glass cell was constructed with a diameter of 90 mm and a length of 700 mm. For managing the desired temperature gradient along the polarization cell, a heating system designed consisting of three heating elements supplying a power of 2500W were fitted onto the aluminum shields covering the glass cell. Then, using four thermocouples placed over the cell surface the simulated and experimentally measured temperature gradients were compared. Rb vapor density was measured using laser absorption profile. Finally, a narrow band laser at a wavelength of 794nm with bandwidth of ~0.1nm and power of 16.6W was used to polarize Rb vapor within the polarizer cell. The polarization level of Rb were measured using a spectrometer (HR 2000+) based on the absorption profiles. According to the simulations, the optimum temperature gradient was achieved at 50°C, 80°C, 120°C, and 170°C over the polarization cell. This temperature gradient confirmed experimentally suggesting that the thermal management system could achieve the simulated temperature gradient. For the corresponding temperature gradient, the polarization levels were calculated using different laser powers. The maximum Rb polarization was found to be 99.2% with laser power of 16.6W. Although the Rb polarization levels expect to be proportional to the final Xenon gas polarization, the measurement of Xenon hyperpolarization and various other effects reducing it is still in progress. 191

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Nuclear Physics

192

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A STUDY ON THE EFFECT OF NATURAL VENTILATION ON INDOOR ATMOSPHERIC RADON CONCENTRATION

MEHMET ERTAN KÜRKÇÜOĞLU, A. ALPASLAN KOÇER, ALİ CAN AKYÜREK SÜLEYMAN DEMİREL UNIVERSITY

[email protected]

The effect of natural ventilation on indoor atmospheric radon concentration was investigated in a laboratory at Süleyman Demirel University. The laboratory has a poor ventilation and a higher radon level than Turkey's average. Hourly radon measurements were taken between 23 November and 29 December 2020 by using 11 electronic detectors. The laboratory was intentionally not used during the measurement period. While continuous radon measurements were being taken in this place, natural ventilation was achieved by opening the door and the window for 6 hours once a week (on 1, 8, 15 and 22 December 2020). In total, more than 9700 radon measurements were collected. Within the limitations of this study, it was found that the average radon concentration level on the days when the laboratory was closed was around 360 Bq/m3, this value dropped to 263 Bq/m3 after 6 hours of ventilation, and the decrease in radon concentration continued slowly for the next 12 hours.

IRL RADON MONITORING SYSTEM

A. ALPASLAN KOÇER, MEHMET ERTAN KÜRKÇÜOĞLU SÜLEYMAN DEMİREL UNIVERSITY

[email protected]

Radioactive radon gas is a dangerous carcinogen. Radon is formed as a result of natural decay processes and is inevitably found everywhere in small or large quantities. Therefore, it is important to determine and monitor radon levels in indoor spaces. In this study, a web- controlled online radon monitoring system, which we call IRL (Isparta Radon Laboratory) Radon Monitoring System, developed for the first time in Turkey is introduced. By using this system, cost-effective atmospheric radon measurements can be performed simultaneously and continuously at homes or workplaces. The architecture of IRL Radon Monitoring System is based on the principle that single-measurement units transfer the data together with the location and time information to a predetermined internet area and then an online radon measurement network is created by integrating these single-units into the system with the aid of the control program we developed for a workstation which has an access to this internet area. A single- measurement unit is formed by an electronic radon detector wirelessly connected to a single- board computer (SBC), which uses the codes we wrote for data transfer and network connection. Test measurements from 12 different locations have been successfully taken since February 2021. Hourly radon, temperature and humidity measurements have been continuously monitored on our website at www.irl32.me. IRL Radon Monitoring System can be used when short-time and/or long-time continuous radon measurements are required.

193

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SIMULATION STUDIES OF PARTICLE RADIATION SHIELDING WITH GD2O3 DOPED BORATE GLASSES

MIRAC KAMISLIOGLU1,2, AYSE BAT2, EMRAH TIRAS2,3 ERCIYES UNIVERSITY [email protected]

The advancements in accelerator technologies and medical applications obliged us to better understand gamma and neutron shielding, especially on glass, ceramics and for materials used in radiation source devices. So, in this study, we determined the mass stopping power (MSP) and projected range (PR) values for 4 different Gadolinium (III) oxide (Gd2O3) doped borate glasses and Gd2O3 samples by using SRIM Montel Carlo packages. Radiation shielding values for Gd2O3 doped borate glasses were evaluated for photons, neutrons, and some other charged particles. It was found that the addition of Gadolinium greatly affects the mass attenuation properties and the radiation resistance of the material. Glass materials with higher Gd2O3 composition indicate higher luminous efficiency and fast decay time, and glass materials with the lower Gd2O3 composition gives the best MSP values for neutron and other charged particles. The change in MSP and PR due to proton and alpha particles for different glass samples are shown as a function of kinetic energy of the particles. Here, we investigated the shielding of neutronic interactions with Gadolinium-containing compounds and demonstrated the effectiveness of the Gd composition for neutron shielding in radiation protection applications..

RADIATION DETECTION AND MEASUREMENT WITH DRONE FOR EMERGENCY SITUATIONS WITHIN CBRN

BERK DÜZEN İSTANBUL UNIVERSITY

[email protected]

In this study, the subject of Radiation Detection and Measurement System with Drone for Emergency Situations Within CBRN was investigated in detail, a medium-sized drone and a geometrically small and light semiconductor detector which can be carried by the drone were used. By making the necessary electronic connections of the detector, remote data transfer was provided. After the necessary tests were taken, a Drone Radiation Detector prototype emerged. As a result of the research and the prototype, it is shown that such a system can be used both in determining the safe zone boundaries and in locating the radioactive material, by preventing the employees from being exposed to radiation by entering the risky area in case of possible radiation accidents.

194

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SIMULATION OF CHARGED PARTICLE REACTION CROSS SECTION MEASUREMENT WITH ACTIVATION METHOD

BURAK AKBIYIK, RECEP TAYGUN GÜRAY, ŞEYMA DENİZ AND CANER YALÇIN KOCAELI UNIVERSITY

[email protected]

Despite the accelerated process and intense efforts with the Covid-19 epidemic, virtual laboratory, simulation and demonstration applications for nuclear physics education are still very limited. Activation Method is one of the important experimental methods in nuclear physics because it is used both in nuclear physics applications and in cross section measurements. In this paper, information will be given about the preliminary results and planned studies of the "Simulation of Charged Particle Reaction Cross Section Measurement with Activation Method" that we are working on. Once the simulation is complete, it will assist both online and face-to-face nuclear physics education, as well as the planning of cross section measurement experiments.

OBTAINING 137CS GAMMA SPECTRUM BY MEANS OF MULTI- PIXEL PHOTON COUNTER

ELIF EBRU ERMİS AND CUNEYT CELİKTAS İZMIR TINAZTEPE UNIVERSITY

[email protected]

137Cs gamma energy spectrum was examined by using a setup consisted of Multi-Pixel Photon Counter (MPPC). In the first part of the study, the energy spectrum was achieved without any operation. In the second part, the noise was discriminated and the photopeak of the radioisotope was unveiled by using constant fraction timing method. The obtained spectra were compared with each other. The results showed that proposed setup was successful in revealing the photopeak and enhancing its energy resolution through the MPPC.

195

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ON THE GROUND-STATE MAGNETIC MOMENT OF THE BARIUM- 137

HAKAN YAKUT1, ELIF KEMAH1, AND HEDIYE TOPRAK 1 SAKARYA UNIVERSITY, PHYSICS DEPARTMENT,

[email protected]

Studies of the magnetic dipole (M1) moments are important in nuclear theory due to the well- understood nature of electromagnetic interaction. The aim of this study is to investigate the ground- state magnetic moment of the 137Ba nucleus in the framework of the Quasiparticle-Phonon Nuclear Model (QPNM). The aim of this study is to investigate the ground-state magnetic moment of the Ba- 137 nucleus, an isotope used in important application areas such as glass structure studies, hyperfine effects, and high-temperature superconductors. The calculated magnetic moment is in agreement with experimental data. The comparison of the measured and calculated values of the magnetic moment shows that the spin polarization explains quite well the observed reduction of spin gyromagnetic factor gs from its free-nucleon value. Calculations show that the spin-spin interaction in 137Ba isotope leads to a polarization effect influencing the magnetic moment. Also, the agreement between the experiment and our calculation shows that the QPNM method is considerably better than other theories in order to explain spin polarization effects on magnetic properties of the nucleus.

Keywords: Magnetic dipole moment, QPNM, Barium, Spin polarization.

THE COMPARISON OF THE LOW-LYING DIPOLE STATES IN THE N=144 NUCLEI

H. YAKUT, E. TABAR, E. KEMAH*, G. HOŞGÖR SAKARYA UNIVERSITY

[email protected]

The low-lying dipole spectra of the 236U, 237Np, 238Pu and 239Am nuclei with N=144 are studied within Translation+Galilean Invariant (TGI-) and Rotational Invariant (RI-) Quasiparticle random phase approximation (QRPA) methods. These methods enable to compute the low-lying dipole excitations and are quite successful in predicting the dipole structure of neutron-rich nuclei. The calculated dipole transition strengths are in good agreement with the available experimental data. In addition, the systematic properties of low-lying dipole states as a function of proton number (Z) are presented for the first time.

This work has supported by the Scientific and Technological Research Council of Turkey (TUBITAK) (Project no. 118F094), Research Fund of the Sakarya University (Project No. 2020-7- 25-55), and the two authors (E. Kemah, MSc., and G. Hoşgör, MSc.) have supported by the Council of Higher Education (YÖK) 100/2000 Ph.D. Scholarship and Technological Research Council of Turkey (TÜBİTAK) 2211-A PhD Scholarship Program.

Keywords: QPNM, Parity Assignment, Strength Distribution 196

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EVALUATING THE PERFORMANCE OF N-TYPE HPGE DETECTOR MODELED AS SHARP AND ROUNDED EDGE USING PHITS MC

ESRA UYAR, MUSTAFA HICABI BÖLÜKDEMİR GAZI UNIVERSITY

[email protected]

HPGe detectors are widely used in gamma spectroscopy due to their high efficiency and good energy resolution. In order to determine the activity of a radioactive source, the full energy peak efficiency (FEPE) values at the energies of interest must be determined precisely. The FEPE value can be determined experimentally or by the Monte Carlo (MC) method. The MC method is much more advantageous in terms of both cost and time, since the FEPE of all kinds of samples can be obtained without using calibration sources. It is very important to model the HPGe detector correctly in the MC method. In this study, the effect of rounded or sharp modeling of the front face geometry of the crystal on the FEPE value was investigated. In many studies in the literature and commercially available MC simulation programs used in gamma spectroscopy, it has been observed that the front face of the crystal, which should actually be rounded, is modeled as a sharp edge. In this study, the effect of modeling the crystal as rounded or sharp edges on the detector efficiency was investigated using the PHITS MC simulation program. By using photon energies in the energy range of 59.5 keV-1408 keV, efficiency values were obtained by modeling the front face as both rounded and sharp for detector-source distances of 5 cm, 10 cm, 15 cm and 20 cm. The FEPE results of the detector modeled as a rounded edge with PHITS were found to be compatible with the experimental efficiency values. According to the results, it was observed that modeling the crystal as a rounded or sharp edge caused a change of up to 12% in the detector efficiency, especially in the close count geometry and in the low energy region (<100 keV).

Keywords: HPGe, Full energy peak efficiency, PHITS, Monte carlo simulation, rounded edge, sharp edge.

197

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STUDY OF CENTRAL DEPRESSION IN NUCLEONIC DENSITIES USING THE SELF-CONSISTENT MEAN-FIELD MODELS

ESRA YÜKSEL YILDIZ TEKNIK UNIVERSITY

[email protected]

Exploration of nuclei with central depression in nucleonic densities, which is also known as bubble structure in nuclei, is a major area of interest within the field of nuclear physics. In this work, systematic calculations are performed along the isotopic and isotonic chains of nuclei to determine nuclei with central depression in their nucleonic densities. To this aim, the self-consistent Hartree-Fock-Bogolyubov calculations are performed using different Skyrme-type interactions. Besides, the correlation between the nucleonic depletion factor and the nuclear matter properties around the saturation density is investigated.

*This work was supported by Yildiz Technical University Scientific Research Projects Coordination Unit. Project Number: FAP-2021-4103.

A THEORETICAL STUDY OF GIANT DIPOLE RESONANCE IN 159TB*

E. TABAR, G. HOŞGÖR, H. YAKUT, AND E. KEMAH PHYSICS DEPARTMENT, FACULTY OF SCIENCE AND ARTS, SAKARYA UNIVERSITY

[email protected]

Electric dipole (E1) transitions in the excitation energies from 8 to 27 MeV, so-called GDR, in the deformed 159Tb are studied for the first time using the Translational and Galilean Invariant Quasiparticle-Phonon Nuclear Model (TGI-QPNM). The photo- absorption cross-section results are compared with the available experimental data. In addition, TGI-QPNM results of the energy-weighted sum rule (EWSR) are also compared with the Thomas-Reiche-Kuhn (TRK) sum rule.

*This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) (Project no. 118F094) and Research Fund of the Sakarya University (Project No. 020- 7-25-56). E. Kemah, MSc. and G. Hoşgör, MSc. are supporting by the Council of Higher Education (CoHE) with 100/2000 Ph.D. Scholarship and The Scientific and Technological Research Council of Turkey (TÜBİTAK) 2211-A PhD Scholarship Program. 198

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MAGNETIC PROPERTIES OF THE ODD-MASS 155-159TB NUCLEI*

H. YAKUT, E. TABAR, G. HOŞGÖR, AND E. KEMAH PHYSICS DEPARTMENT, FACULTY OF SCIENCE AND ARTS, SAKARYA UNIVERSITY

[email protected]

The magnetic properties for the ground-state (having [411]↑ Nilsson configuration) of 155-159Tb nuclei are investigated using the Quasiparticle Phonon Nuclear Model (QPNM), which properly accounts for the core polarization. The intrinsic moment (gK ), the spin-gyromagnetic factor (gseff) and magnetic moment (µ) ratios are calculated, and obtained results are compared with the experimental data. Good agreement between the experimental and theoretical magnetic dipole moments are obtained.

* E. Kemah, MSc. and G. Hoşgör, MSc. are supporting by the Council of Higher Education (YÖK) with 100/2000 PhD. Scholarship and The Scientific and Technological Research Council of Turkey (TÜBİTAK) 2211-A PhD Scholarship Program.

MODELLING OF MARINELLI BEAKER SOURCE IN HPGE DETECTORS BY MONTE CARLO SIMULATION

GÜLPER AKSOY, M. HICABI BÖLÜKDEMİR GAZI UNIVERSITY

[email protected]

The reasons for the widespread use of HPGe detectors in the analysis of radioactive nuclei at low radioactivity are their very good energy resolution and high detection efficiency. Marinelli beakers are widely used to identify gamma rays emitted from environmental radioactive contaminations and increase the efficiency of HPGe detectors, as they are positioned so close to HPGe detectors. For this reason, Marinelli beakers' sizes and their optimization are of great importance. The effect of parameters that change the detector's efficiency such as the Germanium dead layer, copper contact pin, germanium crystal hole size and geometry of the crystal, on the optimum dimensions of the Marinelli beaker in the HPGe detector should be examined. Although it has been modeled with various simulation programs before, there are various difficulties in modeling Marinelli beakers and detectors with simulation programs. In our study, we were able to model a detector with Marinelli beaker by Particle and Heavy Ion Transport code System (PHITS) version 3.24 which has a good agreement with the experimental results.

Keywords: HPGe detectors, marinelli beaker, PHITS, Monte Carlo simulation. 199

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NEW GAMMA-SPECTROSCOPY SETUP FOR NUCLEAR RESONANCE FLUORESCENCE AT TURKISH ACCELERATOR AND RADIATION LABORATORY

H. DAPO, A. AKSOY, Ö. KARSLI, H. YILMAZ ALAN, H. YILDIZ ANKARA UNIVERSITY

[email protected]

A new facility based on a superconducting linac with 40 MeV energy and 1.6 mA current is taking shape at Turkish Accelerator and Radiation Laboratory (TARLA). With a multidisciplinary, multi-purpose focus TARLA is a user facility promoting scientific research and technical development. TARLA is equipped with two beamlines one of which is intended for bremsstrahlung and electron beam use and the other for the free electron laser (FEL). Currently the γ/e- beamline is set to become operational within a year. The γ/e - beamline will be dedicated to nuclear physics studies with bremsstrahlung and electron beams. One of the research focuses at TARLA will be studies of Nuclear resonance fluorescence (NRF). In NRF a nucleus absorbs and then re-emits high-energy photons up to nucleon separation energy. By observing the emitted photons one can study nuclear properties such as level schemes, spin and polarity, branching ratios, transition strengths, collective behavior, pygmy dipole resonance and photon cross section as well as others. By observing these quantities NRF can provide information about nuclear processes relevant to astrophysics as wall production and study of exotic neutron–rich nuclei. By using a multi-detector setup utilizing a combination of high-resolution high- efficiency HPGe detectors in coincidence with fast LaBr3(Ce) it is possible to obtain detailed spectra of nuclei. TARLA Gamma-spectroscopy system (TAGSS) will be based on 2 Clover HPGe, 2 single crystal HPGe and 4 large volume LaBr3(Ce) detectors. Since there are no similar facilities in Turkey or neighborhood countries, it is our aim to present both TARLA as well as TAGSS capabilities to potential user and to promote international collaborations in science research and technology development.

200

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATING THE FIRST ORDER PHASE TRANSITION PARAMETERS WITH GW170817

HAŞIM ZAHID GÜVEN KUTSAL BOZKURT ELIAS KHAN JÉRÔME MARGUERON YILDIZ TECHNICAL UNIVERSITY

[email protected]

Detection of GW170817 opened a possibility to discover high density regime (n>>n_sat, n_sat=0.16 fm^-3) on Neutron Star (NS) interior. However, current nuclear equation of states (EoSs) only marginally satisfy the tidal deformability of GW170817. Therefore, we consider the first order phase transition to quark matter in order to obtain compatible result with GW170817. However, the parameters of first order phase transition is totally unknown: \mu^*, P_c, n^* . In this work, we consider SLy5 which has a compatible slope of asymmetry energy (L_sym) with \chi EFT, and PKDD which is stiff enough for generating high mass NSs (M_NS>=2M_\odot) on the metamodel framework. The limits of unknown parameters of quark phase are investigated: the chemical potential at zero pressure \mu^*, the baryonic density at zero pressure n^*, and the critical pressure P_c. Additionally, impact of the phase transition on the tidal deformability is also discussed.

This work is supported by the Yildiz Technical University under project number FBI- FBA- 2021-4229.

DEEP LEARNING APPROACH TO CALCULATION OF COSMIC RADIATION DOSE FOR AIRCREW

AYBERK YILMAZ, HATİCE YILMAZ ALAN, LIDYA AMON SUSAM ANKARA UNIVERSITY

[email protected]

Cosmic radiation is an ionizing radiation produced when primary protons and α particles from outside the solar system interact with components of the earth's atmosphere. Cosmic radiation is a general term for radiation produced by high-energy subatomic particles from outer space and, more importantly, secondary (ionizing) radiation from the sun and high-energy subatomic particles that react with nitrogen, oxygen, and other elements in the atmosphere. In this study, Deep Neural Networks (DNNs) via Multilayer Perceptrons(MLPs) were used to estimate the radiation doses due to cosmic radiation for different domestic and international flights related with Istanbul and Ankara Airports in Turkey. Besides DNNs, the dose values were calculated with the EXPACS program. The parameters for calculating dose rates are latitude, longitude and depth. The results obtained compared and discussed.

201

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

VARIATION OF INDOOR RADON CONCENTRATION LEVELS WITH HEIGHT

NEDIME İREM ELEK, N. FÜSUN ÇAM, BUKET CANBAZ ÖZTÜRK EGE UNIVERSITY

[email protected]

Commonly known that people are exposed to radon and its progenies since they spend about 90% of daytime at indoor. Radon, a well-established risk factor for lung cancer, is present in most indoor. This work presents indoor radon measurements and the associated annual dose equivalents. Indoor radon concentrations were determined in the same building on floors with different heights and approximately the same projection. The measurements were repeated during 8 month with periodicity as aiming to obtain the seasonal indoor radon variations. The annual effective dose equivalent estimated to be taken by people in the indoor due to the radon exposure were obtained using the formula given in the UNSCEAR 2000 report. The results obtained were compared with limit values recommended by the WHO (World Health Organization) and TAEK (Turkish Atomic Enegry Authority).

HYPER NUCLEI FORMATION IN RELATIVISTIC ION COLLISIONS

NIHAL BÜYÜKÇIZMECI SELCUK UNIVERSITY

[email protected]

Hypernuclei formation is one of the hot topic on nuclear and high energy particle physics during a few last decades. There are many experimental facilities and groups at different laboratories and countries, e.g., FOPI, MAMI, HypHI and FAIR at Germany, STAR, ALICE at USA, NICA at Russia, RIKEN at Japan. In the experiments of these facilities, egzotic nuclei and hyper nuclei can be formed in the peripheral or in the central nucleus- nucleus collisions. We have reproduced the experimental fragment yields (FOPI data) including the important collision energy dependence of He isotope production by using coalescense theory in relativistic ion reactions. We have extended our approach for hypernuclei too. We believe that our new theoretical approach would be a pioneer to analyse hyper nuclei and nuclei which can be obtained in future experiments.

202

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

NATURAL RADIOACTIVITY IN AGRICULTURAL PRODUCTS

PELIN OTANSEV İSTANBUL UNIVERSITY

[email protected]

Humans are exposed to internal irradiation due to radionuclides taken into the body with air, water and food. Humans get most of their nutrients from plants. Radionuclides pass from soil to plants, usually through roots. In addition, radionuclides in the atmosphere are retained by the leaves when they fall to the ground by precipitation. With the consumption of these plants, these radioactive substances enter the human body. These may also present a health risk by accumulating in various organs over time. In this study, 226Ra, 232Th, 40K and 137Cs activity concentrations in 36 fresh and dried agricultural products consumed by the people of Nevşehir were determined.

THE RESOLUTION, ENERGY AND EFFICIENCY CALIBRATION FOR A NAI (TL) DETECTOR

H. YAKUT1, E. TABAR1, N. DEMIRCI SAYGI1, B. SAYGI2, R. ALEMY1 1 DEPARTMENT OF PHYSICS, SAKARYA UNIVERSITY 2 DEPARTMENT OF PHYSICS, EGE UNIVERSITY

[email protected]

NaI (Tl) detectors with high detection efficiency operating at room temperature are widely used today to measure the activities of low-level radioactive sources. In this study, we aim to present the energy, resolution and efficiency calibration of the NaI (Tl) 3²×3² scintillation detector (Ortec&Ametek Inc.) for IAEA Moss-soil reference, Eckert & Ziegler Analytics standard source and the point sources emitting gamma-rays in the 59.5– 1332.5 keV range. The energy, resolution, efficiency values of NaI (Tl) detector for different gamma energies have been compared with the values previously reported for point sources. It has been seen that there is a good agreement between our data and the values reported in the literature.

Acknowledgements: This work was supported by the Sakarya University Research Funds (SAU BAP), Project No: 2020-7-25-55

203

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

VIRTUAL NUCLEAR PHYSICS LABORATORY: EXPERIMENTS WITH THE GEIGER-MÜLLER DETECTOR

ŞEYMA DENİZ, CANER YALÇIN, BURAK AKBIYIK AND RECEP TAYGUN GÜRAY KOCAELI UNIVERSITY

[email protected]

Switching to online education due to the Covid-19 epidemic caused hitched the laboratory lessons. Although some virtual laboratories and simulations in basic physics have eliminated this deficiency, simulations that can be used in specific fields such as nuclear physics are not sufficient. For this reason, we are developing a virtual nuclear physics laboratory to be used both in online education and for students who do not have laboratory facilities. In this paper, information will be given about the stage of the current studies and the studies planned for the future.

TUABLE, ACTIVE BAND-STOP FILTER DESIGN FOR PENNING- TRAP EXPERIMENT FREQUENCY MEASUREMENTS

TUĞBA ÇEPNİ, MEHMET ERHAN EMİRHAN, BAKI AKKUŞ İSTANBUL UNIVERSITY

[email protected]

In this research, the production of adjustable active band-stopping filter design has been intended, which are to be used in Penning-Trap experiments at Max Planck Institute located in Germany with cut frequencies of 400 kHz, 500 kHz and 600 kHz. Bessel, Butterworth and Chebyshev band- stopping filter simulation outputs are compared to the planned frequency outputs; thus, Bainter Notch filter topology is chosen to be best applicable to those topologies. Since the simulation program components which are to be used are accepted to be ideal, the real components in the circuit design are chosen to be the closest to the simulation program and suitable passive and active circuit components with specifically regulated various cut frequencies are selected. In order to tune the Q quality factor to specify the quality of the filter as a variable, passive components such as suitable resistance and capacitors within the outputs in the filter simulations are selected as tuned and the op- amp and the filter circuit which is to operate closest to ideal has been printed with the Eagle program in hot printing technique; thus, variable filter designs having different quality factors as well as different cut frequencies has been obtained. In a single filter print circuit, the production of a band- stopping design specific to one cut frequency, which will output the best Q value and the narrow band interval has been decided to be more efficient rather than getting the best Q value for different cut frequencies. For the band-stopping designs asked specifically for the kHz order, band interval and frequency amplitude has been deduced to be linked to feedback resistance and proportionate to their given ratios which can be adjusted as variables. The research of filter designs on dependence to PCB production, the effect of capacitor ratios and opamp tension factors have been concluded to be vital for future studies.

204

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SYNTHESIS AND CHARACTERIZATION OF SOME C-TI BASED MULTILAYER AND COMPOSITE NANOSTRUCTURES

VICTOR CIUPINA OVIDIUS UNIVERSITY

[email protected]

Using TVA technology, multilayer and composite C-Ti layers were deposited on silicon substrates. The C-Ti multilayers were constructed from the silicon substrate as follows: 100nm of carbon, followed by alternant 17nm Ti and 40 nm C three times, covered by one last 17 nm Ti layer, resulting a seven multilayer structure. For the composite layer, after the pre 100nm carbon one, we varied quasi continuously the Ti:C atomic ratio, from 1:9 and reaching 9:1 at the top of the 119 nm. For both composite and multilayer structures, several batches were obtained for comparison. We varied the substrate temperatures during the deposition (R. T.,100, 200, 300 and 400oC) and one deposition batch was obtained at 300oC with a -700V polarisation voltage on the substrates, in order to increase the ions energy reaching the layer, during the coating process. Characterization of structural properties of films was achieved by Electron Microscopy technique (TEM, STEM) and GIXRD techniques. The measurements show that increase of the substrate temperature reveal changes in TixCy lattice parameters. Thus, according to GIXRD analysis it was found out that the Ti:C atomic ratio changes with increase of synthesis temperature. Also, in the case of composite films an increase of amount and sizes of TiC nanocrystals with the increase of energy of Ti ions determined by increase of polarisation voltage was observed. The tribological measurements were performed using a ball-on- disk system with normal forces of 0.5, 1, 2, 3N respectively. Was found that the coefficient of friction depends on the synthesis temperature and on the polarisation voltage. It is also noted that the friction coefficient depends on the pure C content, Ti content and amount of TiC nanocrystallites. These results are due to atomic diffusion at Ti/C interfaces and also are associated with amount of TiC nanocrystallites. Using Bruker Hysitron TI980 Triboindenter System, global hardness of the coating, in depth hardness and SPM imaging analysis were performed. By Nanoscratch Analysis, global and depth Young modulus was measured. To characterize the electrical conductive properties, the electrical surface resistance versus temperature have been measured, and then the electrical conductivity is calculated. Using the Wiedemann-Frantz law was obtained the thermal conductivity.

205

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INFLUENCES OF ENERGY DEPENDENT WOODS-SAXON POTENTIAL AND COUPLED CHANNEL MODEL IN HEAVY-ION FUSION REACTIONS: SETTING THE THEORETICAL BACKGROUND OF 111-IN RADIONUCLIDE

ZEHRA MERVE CINAN* BURCU EROL TAYLAN BASKAN AHMET HAKAN YILMAZ KARADENIZ TECHNICAL UNIVERSITY

[email protected]

This study has been carrying out to obtain and inspect setting the theoretical background of 111-At radionuclide with different heavy-ion fusion reactions. Cross-sections and barrier distributions of heavy-ion fusion reactions have been investigated and calculated with alternative combinations of interacting nuclei. Firstly, we specified reaction parameter values taking into account the compatibility with the experimental fusion cross- section data. Subsequently, we performed alternative reaction calculations via our specified parameter values. Calculations have been performed via NRV Knowledge Base, CCFULL code, and Wong’s Formula. This research aims to execute a study that gives the most harmonious result compared with experimental results and to observe influences of Energy Dependent Woods-Saxon Potential (EDWSP) and Coupled Channel (CC) Model in heavy-ion fusion reactions. We determined that our calculations are in good harmony with experimental data and models. Our investigation sheds light on the stature of analyzing heavy-ion fusion reactions with theory-based research's importance and encourages new experimental researches that are not yet included in the literature.

Keywords: Barrier Distributions, Cross-Section, Coupled Channel Model, Energy Dependent Woods-Saxon Potential (EDWSP), Heavy-Ion Fusion, Indium-111, Radionuclide.

206

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Oral Presentations Physics Education and Applications

207

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A COMPARISON OF HIGH SCHOOL STUDENTS’ GRAPH USAGE SKILLS ACCORDING TO GENDER

BETÜL ŞEYMA YELTEKİN ATAR, IŞIL AYKUTLU HACETTEPE UNIVERSITY

[email protected]

The aim of this study is to determine whether Year11 students’ levels of reading- interpreting and drawing graphs of motion and force vary according to gender. The study was carried out in the survey model with the participation of 209 Year11 students enrolled at Anatolian high schools. Graph Reading and Interpretation Skills Test, which consists of 13 multiple-choice items, and Graph Drawing Skill Form containing five open-ended questions were used as data collection tools. At the end of the study, the comparison of students’ graph reading-interpretation and graph drawing scores according to the gender of students revealed that there is a significant different in favour of female students. The higher average scores of female students in the transition system to high schools and in the exams of higher education institutions seem to support this result.

EVALUATION OF SOME PHYSICS CONCEPTS IN TERMS OF ARISTOTLE, IBNI SINA AND MODERN PHYSICS

ABDURRAHMAN ŞENGÜL, BURAK TEKİN, MURAT YILDIZ KARAMANOĞLU MEHMETBEY UNIVERSITY

[email protected]

Aristotle sees the concept of nature as a principle of movement, from this point of view, he examines the concepts of infinity, place, time, and space brought by movement, and explains principles such as motion and change with these concepts. In this study, some physics concepts in the physics book of Aristotle and Avicenna were examined in terms of physics literature by comparing what they wanted to emphasize in the conditions of that day and whether they had the same meaning when compared to today's modern physics.

208

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PHYSICS TEACHERS' VIEWS ON FORMATIVE ASSESSMENT

ELIF YALVAÇ ERTUĞRUL, SALIH ATEŞ GAZI UNIVERSITY

[email protected]

In this study, the views of physics teachers on formative assessment practices were examined. The study group consists of 25 physics teachers. The data were collected through the semi-structrued interview form prepared by the researcher. In this research, which adopts qualitative research assumptions, content analysis method was used for data analysis. The data collection tool consists of three main parts: "assessment and evaluation", "theoretical information on formative assessment" and "in-class practices of formative assessment". As a result, it has been determined that teachers who think teacher- centered in the part about assessment and evaluation also consider formative assessment practices for grading purposes. The teachers, who stated that they used assessment and evaluation applications only for grading purposes, said that they had no idea about formative assessment. Teachers who said that they did not use formative assessment in the classroom stated that they gave feedback to the students but did not integrate it into the lesson. In addition, almost all of the participants stated that formative assessment should be used in science education, provided that teachers received proper training on formative assessment. The findings of the present and previous studies are compared, and the possible effects of the present studies on previous studies on teaching, learning and formative assessment are discussed.

209

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DISTANCE PHYSICS EDUCATION

HAYATI TARHAN

[email protected]

Distance Physics Education Distance education, which started with a letter in 1840, gained a new dimension in 2020 and became a necessity rather than a choice. Due to the pandemic, all educational institutions have started to conduct distance education. This process has revealed the concept of "live lesson" in education. While universities have created a "distance education (uzem)" environment where students can listen to the lessons as much as they want, with live lessons, primary, secondary and high school education institutions have provided education to students only with live lessons. In this study, the characteristics that a distance education Physics Teacher should have were examined. The characteristics that a Physics Teacher should have were gathered under two headings by scanning the literature. The first is high-speed internet access, fast computer or tablet, technical devices necessary for using a computer or tablet. Secondly, it was seen that they should have the knowledge of preparing computer-assisted Physics course material, the ability to teach online, the skill of internet-supported lectures, the ability to use animation and simulation programs and make them available to students online. Today, when the concepts of distance education, mobile education, online education or live lessons are seen as a part of life, it is inevitable for Physics Teachers to renew themselves according to innovations and to frequently use mobile learning tools in teaching methods and techniques. It is thought that this study will contribute to teaching methods and techniques in this respect.

DETERMINING PRE-SERVICE TEACHERS’ COMPREHENSION LEVELS OF SOME BASIC CONCEPTS IN ATOM PHYSICS COURSE

SEVIM BEZEN, CELAL BAYRAK HACETTEPE UNIVERSITY

[email protected]

This study aims to determine pre-service teachers’ comprehension levels of some basic concepts of atom physics. It is a qualitative study that uses the case study model. In other words, the study focused on “why” and “how” and the researchers had no control over the phenomenon. The study group was determined according to purposeful sampling, and the study was carried out with the participation of 23 pre-service teachers who have taken the atom physics course. Data in the study were collected through semi-structured interviews. Pre-service teachers were asked five open-ended questions on electrons, photons, and atoms. The obtained data were analysed by content analysis. At the end of the study, it was determined that pre-service teachers have a high comprehension level concerning these basic concepts. It was also determined that pre-service teachers have incorrect or incomplete comprehension only of electronic transition.

210

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

WILDERNESS ONTOLOGY IN THE PHYSICS IN NATURE COURSE – IN THE TWILIGHT OF DELEUZE AND GUATTARI PHILOSOPHY

ZEYNEP GÜREL MARMARA UNIVERSITY

[email protected]

Physics in Nature Course includes real life problems which pass through a solution process and residential camps. In these camps various habitat and physics activities are carried out during the day, and sky observation and conversations are made around the campfire during the night in accordance with the theme of the camp This research has been prepared upon two different problematics which referred in the presentations of two Deleuze and Guattari conferences in Rome in 2015 and in in 2019. Throughout the years my endeavour to transform the events which were accumulated and diversified throughout years into a lived curriculum has been researched and tried to be based upon theoretical grounding. An incompatibility between life area which consists of lived experiences and problem-solving mechanisms prevalent in physics education has been determined. I conducted another interrogation in the process of problem-solving activities research by applying Deleuze and Guattari philosophy into the Physics in Nature course events. Two seemingly divergent physics teaching environments including wilderness pedagogy and conventional indoor physics are discussed within this presentation.

Key words: physics in nature, wild pedagogy, problem solving.

211

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Atomic and Molecular Physics

212

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SERS APPLICATIONS OF GROUP 4 METAL NITRIDES

ASLI GENÇASLAN, RAMAZAN ŞAHIN AKDENIZ UNIVERSITY

[email protected]

Surface-enhanced Raman spectroscopy (SERS) technique has potential for sensing molecules in trace amounts within the field of chemical and biological applications. SERS has been succeeded in disciplines such as material science, medicine, forensic science and arts and it is today one of the sensitive techniques in surface sciences. Despite huge progress on SERS, there are still challenges for practical applications. Among these, the current trend is the development of low-cost and reliable manufacturing, selective and sensitive platforms to enable Raman signal enhancement. In the SERS applications, Gold (Au) and Silver (Ag) have been the most commonly used plasmonic materials. Although they have low optical losses compared to the other materials, their dielectric permittivity cannot be adjusted easily during fabrication. Besides, they are useless at high temperature due to their low melting points (Au ∼1064◦C, Ag ∼961.8◦C). Therefore, alternative materials are required for SERS applications. Titanium Nitride (TiN), Zirconium Nitride (ZrN) and Hafnium Nitride (HfN) known as refractory transition metal nitrides display metallic properties in VIS and NIR [1-3] and have been proposed as a good alternative for many plasmonic applications. They have also superior properties such as large free carrier concentrations, adjustable permittivity by stoichiometry, strong mechanic stability, high melting point (ZrN ∼2980◦C, TiN ∼2930◦C, HfN ∼3310◦C) [4]. In this study, we present that Group 4 Metal Nitrides can be used as a good SERS platform by calculating SERS enhancement factor by FDTD method. Our results show that, Au and Ag can be replaced with Group 4 Metal Nitrides in the very wide spectral range for SERS applications.

213

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

FABRICATION OF CALIX [4]ARENE LANGMUIR-BLODGETT THIN FILM SENSOR FOR THE DETECTION OF VOLATILE ORGANIC VAPORS

CANSU ÖZKAYAA, RIFAT ÇAPANA, MATEM ERDOĞANA, MEVLÜT BAYRAKCIB, MUSTAFA ÖZMENC, YASER ACIKBAŞD ADEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, UNIVERSITY OF BALIKESIR, BDEPARTMENT OF BIOENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF KARAMANOĞLU MEHMETBEY, CDEPARTMENT OF CHEMISTRY, FACULTY OF SCIENCE, UNIVERSITY OF SELÇUK, DDEPARTMENT OF MATERIALS SCIENCE AND NANOTECHNOLOGY ENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF UŞAK

[email protected]

5,11,17,23-5,11,17,23-Tetra-(tert-butyl)-25,27-di-(2-aminomethyl pyridine acetamide)- 26,28-dihydroxy calix[4]arene (C4P2T) molecule was transferred for the first time as a sensor active layer for the detection of volatile organic vapors (VOCs) such as acetone, benzene, chloroform, ethyl acetate and methanol. UV-visible spectroscopy and surface plasmon resonance (SPR) technique were employed to monitor Langmuir-Blodgett (LB) thin film layer during the fabrication process of each sensor layers. In order to determine the film thickness and refractive index values of C4P2T LB films, SPR measurements were performed using a Kretschmann’s prism configuration set-up system. WINSPALL software developed at the Max-Plank Institute for Polymer Research Germany was applied to the SPR curves using a Fresnel formula. The thickness and the refractive index values of the C4P2T LB thin film material were found to be as 1.01 nm/layer and 1.59 respectively. For the VOCs sensor application of the active C4P2T LB layer, reflected light intensity as a function of time was taken using SPR system. These measurements were indicated that sensor active layer is suitable for multiple use regarding to a fast response time (~ 3 s) and a recovery time (~ 3 s). The amounts of C4P2T LB sensor response against organic vapors were followed by acetone>chloroform>methanol>ethyl acetate>benzene. As a conclusion C4P2T LB film sensor has selective character and can be used for VOCs sensor applications.

Keywords: LB thin films, calix[4]arenes, SPR, VOCs sensing

Acknowledgments: The financial support from the Research Foundation of Balıkesir University (Project No: 2018/057) is gratefully acknowledged.

214

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

RESEARCH AND APPLICATION OF CHARACTERISTICS OF DISLOCATION IN GAN /ALN/ALGAN HIGH ELECTRON MOBILITY TRANSISTORS

ÖZLEM BAYAL (GAZI UNIVERSITY) ESRA BALCI (HACI BAYRAM VELI UNIVERSITY) M. KEMAL ÖZTÜRK (GAZI UNIVERSITY)

[email protected]

Gallium nitride has a set of properties that make it possible to develop devices with superior parameters compared to devices based on conventional semiconductors. GaN, as a material for high-temperature, high-voltage, and high-current applications, can significantly expand the operational capabilities of semiconductor technology. The unique combination of physical properties in GaN means that nitride semiconductors may be the most promising materials for designing new generation devices. The heterostructures of GaN-based high electron mobility transistors (HEMT) occupy leading positions in high-power microwave devices, but the initial presence of a sufficiently large number of various GaN defects leads to the appearance of traps and the so-called effect of current collapse, decreasing frequency and power performance. For this reason, it is especially important to investigate and control both active and buffer layers. When developing solutions to eliminate these negative phenomena and optimize the parameters of heterostructures to increase the subthreshold slope characteristic, operating frequencies, and device power, the most productive approaches involve the presence and effective use of an appropriate diagnostic base for high-quality and reliable verification of the resulting structures.

215

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

CHARACTERIZATION OF SPUN PMMA THIN FILMS AND METAL ORGANIC FRAMEWORK EMBEDDED PMMA THIN FILMS VIA SURFACE PLASMON RESONANCE SPECTROSCOPY

RIFAT ÇAPANA, MATEM ERDOĞANA, İNCI ÇAPANA, CANSU ÖZKAYAA, FRANCISCO G. MOSCOSOB, JOSÉ M. PEDROSAB, NIKOS PANAGIOTOUC, LAOURA K. KOMODIKIC, ANASTASIOS J. TASIOPOULOSC ADEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, UNIVERSITY OF BALIKESIR, BDEPARTAMENTO DE SISTEMAS FÍSICOS, QUÍMICOS Y NATURALES, UNIVERSIDAD PABLO DE OLAVIDE, CDEPARTMENT OF CHEMISTRY, UNIVERSITY OF CYPRUS

[email protected]

Abstract Spin-coating technique was employed for the fabrication of Poly(methyl methacrylate) (PMMA) thin films and Metal-Organic Framework (MOF) embedded PMMA films onto 50 nm thick gold coated substrates. PMMA only and MOF (Zr(m3- O)4 (m3-OH)4 (NH2-bdc)6) included PMMA solutions with the concentration of 0.1% wt were used to produce spun thin films using the spinning speeds between 1000 rpm and 3000 rpm. The PMMA/MOF mass ratio per 1 ml of solution was 1.56. PMMA and PMMA/MOF thin films were investigated using the Surface Plasmon Resonance (SPR) spectroscopy to monitor film thickness, refractive index, homogeneity, and quality. The thicknesses of PMMA films produced at 1000 rpm, 2000 rpm and 3000 rpm spinning speeds were 316 nm, 302 nm and 300 nm, respectively. While the thickness of PMMA/MOF films at 1000 rpm spinning speed was calculated as 313 nm, this value was determined as 309 nm for 2000 rpm and 3000 rpm. The refractive index value of all films was analyzed as 1.40. Optimum conditions for the fabrication of these thin films for SPR measurements were analyzed for future sensing applications.

Acknowledgement This research is financially supported by the M-ERA-NET consortium of European Research Area (ERA) with the TUBITAK project number 119N755.

216

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

GAS SENSING ABILITIES OF 2-[(2R)-2-HYDROXY-3-[[(1R,2S)-2- HYDROXYINDAN-1-YL]-AMINO]PROPYL] ISOINDOLINE-1,3- DIONE THIN FILM AGAINST ORGANIC VAPORS

CEMIL AKKOYUNLUA, YASER ACIKBASA, RIFAT CAPANB, MATEM ERDOGANB, SELAHATTIN BOZKURTC, D, ABDULKADIR SIRITE ADEPARTMENT OF MATERIALS SCIENCE AND NANOTECHNOLOGY ENGINEERING, FACULTY OF ENGINEERING, UNIVERSITY OF UŞAK, BDEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, UNIVERSITY OF BALIKESIR, CDEPARTMENT OF CHEMISTRY, SCIENTIFIC ANALYSIS TECHNOLOGICAL APPLICATION AND RESEARCH CENTER, USAK UNIVERSITY, DDEPARTMENT OF MEDICAL LABORATORY TECHNIQUES, VOCATIONAL SCHOOL OF HEALTH SERVICES, USAK UNIVERSITY, EDEPARTMENT OF CHEMISTRY, NECMETTIN ERBAKAN UNIVERSITY

[email protected]

In this study, 2-[(2R)-2-Hydroxy-3-[[(1R,2S)-2-hydroxyindan-1-yl]-amino]propyl] isoindoline-1,3-dione organic materials was selected as sensor materials. This material was deposited onto quartz crystal successfully by using spin coating technique. Then, fabricated thin film sensor was exposed to six different harmful organic vapors (acetone, chloroform, benzene, toluene, xylene and dichloromethane). The sensitivity of this mass sensitive sensor against to these harmful gases was investigated using Quartz Crystal Microbalance (QCM) technique. Our results indicated that this mass sensitive thin film sensor can be used as a potential candidate for organic vapor sensing applications with a simple and low cost preparation at the room temperature.

Keywords: Spin coating, thin film, chemical sensor, quartz crystal microbalance (QCM)

Acknowledgments: We gratefully acknowledge Uşak University Research Foundation for the financial support with the project number 2018/MF002.

217

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THEORETICAL EPR HYPERFINE COUPLING CONSTANTS OF CATION AND ANION RADICALS OF PYRAZINE, QUINOXALINE AND PHENAZINE DI-N-OXIDES

SADUN KÜÇÜK, FATİH UCUN SÜLEYMAN DEMIREL UNIVERSITY

[email protected]

In this study, EPR hyperfine coupling constants and spin densities of cation and anion radicals of pyrazine, quinoxaline and phenazine di-N-oxides were calculated by using density functional theory (DFT) with B3LYP functional at LanL2DZ level. The hyperfine structures formed the EPR spectra of all the radicals were determined, and the calculated hyperfine coupling constants were compared with the corresponding experimental data. From the results it was found that in the anion radicals the unpaired electron is mainly localized on the ring nitrogen atoms except the oxygen atoms. This causes bigger hyperfine values of the nitrogen atoms than those in the cation radicals. The simulated EPR spectra based on the calculated hyperfine coupling constants of all the cation radicals were obtained and, given together with their experimental spectra. It was seen a good harmony between them.

Key words: Hyperfine constant, Spin density, Radical, EPR, DFT.

A DENSITY FUNCTIONAL THEORY STUDY ON NONLINEAR OPTICAL PROPERTIES OF LINBR (N = 2-8) CLUSTERS

SAMET ÖZGÜR, ARSLAN ÜNAL BILECIK ŞEYH EDEBALI UNIVERSITY

[email protected]

Lithium-halide clusters containing a single pure halogen atom, are superalkali and hypervalent, can have very significant nonlinear optical activities. In this study, the energetic and nonlinear optical behaviors of LinBr (n = 2-8) clusters were computed by using density functional theory (DFT) and were compared with the other lithium-halide clusters containing a single pure halogen atom reported in the literature. It is thought that this research will lead the way in the design of alkali halide electro-optical materials having nonlinear optical properties.

218

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STARK EFFECT IN MOMENTUM SPACE

SELDA ÖZAY, EMIN ÖZTEKİN ONDOKUZ MAYIS UNIVERSITY

[email protected]

By using the Fourier transform of hydrogen type wave functions, the Stark effect for all quantum states in the momentum space is analyzed analytically and new expressions are derived for the perturbation term originating from the electric field. In order to derive the obtained analytical expressions, radial and angular integrals including derivatives of Gegenbauer polynomials and spherical harmonics were calculated and the same results were obtained with the results obtained in radial space. At the same time, symmetry relations for Gegenbauer coefficients are obtained and three-dimensional graphs showing the variation of derivatives of spherical harmonics according to θ and ϕ angles are presented. In order to obtain the eigenvalues of the Hamiltonian matrix obtained for hydrogen and hydrogen-like atoms, two different methods, namely archive functions in the Mathematica programming language and the Jacobi method, were used. The same numerical results were obtained with both methods used.

Key Words: Hydrogen type orbitals, Spherical harmonics, Gegenbauer polynomials, Stark effect.

GEOMETRIC ANALYSIS OF THE POLYPHENOL ANTIOXIDANT KAEMPHENOL

SINEM GÜRKAN AYDIN İSTANBUL GELIŞIM UNIVERSITY

[email protected]

Flavonoids are low molecular weight natural compounds found in plants that have a positive effect on human health. Flavonoids are divided into several classes and are generally reported to have 6 basic flavonoid classes. These; flavones, flavonones, flavonols (quercetin, kaempferol, myricetin and isohamnetin), isoflavonoids, anthocyanins and flavanoller. Kaemphenol is a polyphenol antioxidant found in many vegetables and fruits. Previous studies have shown that kaemphenol is effective in reducing the risk of chronic diseases, especially cancer. A review of the dietary flavonoid, kaempferol on human health and cancer chemoprevention. In epidemiological studies, there is an inverse relationship between cancer and kaemphenol intake. The aim of this study is to provide detailed information about the molecular basis of kaemphenol and to contribute to bioavailability studies by synthesizing the information provided. In this study, the optimized structures of Kaempferol was calculated by using semi-empirical models such as AM1, PM3 and MNDO; Density Functional models(DFT) at B3LYP and Hartreefock methods(HF) with 6-311++G(d,p) and 6-31G* levels. The energies and geometric parameters of Kaempferol were also determined.

219

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SPECTRAL TUNING OF SERS ENHANCEMENT WITH GRAPHENE

TANER TARIK AYTAŞ, RAMAZAN ŞAHİN AKDENIZ UNIVERSITY

[email protected]

Single layer graphene (SLG) is two-dimensional carbon atoms structured in the honeycomb lattice with sp2 hybridization. Due to superior optical properties of SLG in which dielectric constant of SLG can be tuned by changing the carrier density without very weak optical losses, it becomes very popular in the active tuning of plasmonic properties both in VIS and IR wavelengths. In addition, measuring the Raman scattering is a unique technique to explore the mechanical vibrations (photon-phonon interaction) at the single molecule limit. However, strength of this scattering is quite small. Therefore, plasmonic structures can be used to enhance the magnitude of Raman signal, Surface Enhanced Raman Scattering (SERS). This enhancement can be reached to the fourth power of field localization (hot-spot). However, increasing the hot spot intensity destroys properties of molecule. Therefore, it would be very useful if one can enhance the Raman signal without increasing the hot-spot intensity at different wavelengths in a single-setup. ‘Fano resonances’ or ‘path interference effect’ can provide such a tuning for our suggestion. In this study, we present active spectral tuning of Raman enhancement factor without increasing the hot-spot intensity through employing SLG in the SERS application.

220

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Applied Physics

221

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A QUANTUM RANDOM NUMBER GENERATOR DESIGN USING RADIOACTIVE DECAY OF AMERICIUM-241

MELAHAT BILGE DEMIRKÖZ BERK ALPEREN BENER ARDA KAYAALP MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

True randomness is the key to secure data transactions in the post-quantum world which pseudo-random number generators does not provide. Most of the true random number generators utilize electrical noise or semi-transparent mirrors with a light source as an entropy generator. These systems have a high bit generation rate, but they are interruptible from the outside, hence creates a vulnerability. One way to solve this problem is using a non-interruptible random process. Radioactive decay is a quantum random process that cannot be interrupted. Generating random numbers from radioactive decay is not a new concept, but it is not common in the industry because of the relatively slower bit generation rate among other randomness sources. In our research, we developed TRNG that uses TDC-based readout electronics with an alpha detector to measure the time between two consecutive Am-241 decays. Random numbers generated using this timing data converted into a binary sequence that shows promising results according to common statistical test suites in literature with relatively higher bit generation rate comparing the other methods using radioactive decay.

222

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF MAGNETIC AND MECHANICAL PROPERTIES OF NANO Y2O3 DOPED BISMUTH BASED SUPERCONDUCTING MATERIALS

EMINE BURCU CEVIZCIA, KEMAL KOCABAŞA, ÖZLEM BILGILIA DOKUZ EYLUL UNIVERSITY, GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES

[email protected]

To study the effects of Y2O3 nanoparticle addition to BSCCO superconducting system, four bulk polycrystalline samples with general formula of Bi1,8Pb0,3Sr2Ca2Cu3Oy + xY2O3 (where, x = 0.0, 0.2, 0.4, 0.8 and 1.0 wt%) were prepared by solid-stated reaction method. Y2O3 nanoparticles were added to the BSCCO system in order to improve the connectivity among the grains leading to increase in the critical current density (Jc) and to increase mechanical strenght. X-ray diffraction, SEM, Vibrating Sample Mesurement (VSM) and Vickers Microhardness Mesurement (VHM) were used for structural characterization of the samples. XRD analysis showed that both (Bi,Pb)-2223 and Bi-2212 phases coexist in the samples. VSM results were showed that improvements in Jc in BSCCO superconducting system by adding 0.4 wt% Y2O3 nanoparticles to it. We see that the made nano doping creates an artificial needling center and increases the critical current density. VHM results were showed that Microhardness values of samples decreased up to 0.4 wt% additive value. It is seen that after 0.4% additive value, it then increases and remains constant.

Keywords: (Bi,Pb)-2223; Nano Y2O3 addition; Critical current density; Microhardness.

PREPARATION OF SELF-CLEANING SURFACES WITH LOTUS EFFECT BY SOL-GEL METHOD

EBRU ÖZKARA, ATILLA EVCIN AFYONKARAHISAR KOCATEPE UNIVERSITY

[email protected]

Many surfaces in nature are hydrophobic and self-cleaning. For example, butterfly wings, spider feathers, and leaves of plants such as cabbage. The best-known example of a hydrophobic self- cleaning surface is the leaves of the lotus plant. In this study, it was aimed to produce superhydrophobic nanocomposite coating by a sol-gel method. Silane and alkoxide based solution was prepared by sol-gel method and applied with a film applicator on a glass surface. The superhydrophobic surface is fabricated on a glass substrate. Surface morphology was characterized by scanning electron microscope (SEM) and surface chemical composition by EDX and FTIR spectra. Hydrophobicity was measured by measuring the angle it made with water with contact angle measurements, and the thickness and homogeneity of the film were measured by imaging methods. From the findings, it was decided whether it is hydrophobic or superhydrophobic.

This study was supported by TUBITAK 2209A-Research Project Support Programme for Undergraduate Students (1919B012004077) 223

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

MICROENCAPSULATION OF ANTIBACTERIAL ESSENTIAL OILS

GAMZE KOSE, ZEYNEP SUZME, ATILLA EVCIN AFYON KOCATEPE UNIVERSITY

[email protected]

Nanotechnology has also entered our lives in areas where essences such as many cosmetic products, textiles, and cleaning products are used intensively. Essential oils are obtained from various parts of aromatic plants; are volatile products with antiseptic, antimicrobial, and antioxidant properties. Microencapsulation is the coating of a solid particle, liquid droplet, or gas bubble with a film-forming substance in the form of small particles. The morphology of the microcapsules changes mainly depending on the core material and the microencapsulation process. Microencapsulation has a number of basic advantages. It provides safe and comfortable use of toxic materials by protecting sensitive and unstable materials from environmental factors, increasing their workability, providing release and time-dependent release of targeted materials, masking undesirable odor or taste. In this study, essential oils (sage oil, lemongrass oil, tea tree oil) were encapsulated by the microencapsulation method and their effective performance was evaluated, their stability was observed and their antibacterial properties were examined.

This study was supported by TUBITAK 2209A-Research Project Support Programme for Undergraduate Students (1199B472101695).

224

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PRODUCTION AND CHARACTERIZATION OF GRAPHENE NANOPLATELET DOPED HYDROXYAPATITE POWDER

İKBAL YAREN POLAT, ZEYNEP ÖZKAN, ATILLA EVCIN AFYON KOCATEPE UNIVERSITY

[email protected]

The matrices of the cortical and trabecular parts of human bones consist of two phases. These two phases, calcium hydroxyapatite [HA: Ca10(PO4)6(OH)2 ] and tricalcium phosphate [ TCP: Ca3(PO4)2 ], form an important part of the inorganic part of the bone tissues of living organisms. But mainly filled with natural collagen. Generally, the strength of hydroxyapatite grafts decreases as the porosity increases. The aim of this study is that the graft is both porous and high in strength. For this reason, graphene nanolayers (GNP), which has been widely used in recent years, and its derivatives, have been preferred to be used as additives to hydroxyapatite. In this study, calcium nitrate [Ca(NO3)2] and phosphoric acid were dissolved in water and mixed in stoichiometric ratio (Ca/P=1.67). Mixture of GNP powders mesh. It was added at the rates of 0.1 and 0.5% and mixed with an ultrasonic homogenizer. After aging for 24 hours at room temperature, the gelled powders were calcined at 1000 °C. The calcined powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infra Red (FTIR). Three point bending strength and contact angle measurements were made on the tablets obtained by shaping the powders.

This study was supported by TUBITAK 2209A-Research Project Support Programme for Undergraduate Students (1919B012004026).

225

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EFFECT OF HEMATITE/MAGNETITE AND BORON CARBIDE ON RADIATION ATTENUATION

KÜBRA KURT, ATILLA EVCIN AFYON KOCATEPE UNIVERSITY

[email protected]

Today, the number of nuclear power plants is increasing rapidly. As a result, the number of medical devices emitting radiation and nuclear accidents increases, revealing the importance of radiation protection measures. Today, lead is generally used as an armor shield to protect from radiation in buildings. In addition to the radiation attenuation by lead, it also has many negative effects on human health. Another disadvantage of lead is that it will release toxic gases for human health in a possible fire. In this study, polyester resin, boron carbide (B4C) and high atomic number iron oxides (hematite (Fe2O3), magnetite (Fe3O4)) were preferred as matrix, thanks to its high molecular weight and easy processability, to shield gamma ray radiation. Seven composite plates were prepared, and their shielding abilities were investigated by performing density determination, tensile test and gamma ray shielding analysis on these plates.

This study was supported by TUBITAK- 2247 - C STAR-Intern Researcher Scholarship Programme (project no: 219M268).

226

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INFLUENCE OF Γ-RADIATION ON THE ELECTRICAL PROPERTIES OF EXTRUDED SAMPLES OF SOLID SOLUTION BI85SB15 ‹PB›

TAGIYEV M.M ABDINOVA G. D ABDULLAYEVA I. A INSTITUTE OF PHYSICS (ANAS)

[email protected]

Solid solutions of Bi-Sb systems, especially high-strength extruded materials based on these systems, are the most effective materials for creating various low-temperature energy converters. Bi-Sb devices are often used in radiation conditions. In order to clarify the peculiarities of the effect of radiation defects on the electrical properties of solid solutions of Bi-Sb systems, we obtained extruded samples of Bi85Sb15 doped with Pb atoms and investigated their electrical properties depending on the dose of gamma radiation in the temperature range 77 ÷ 300 K. It was found that at low irradiation doses (1 Mrad), radiation defects appear in the samples of the Bi85Sb15 solid solution, which play the role of donor centers; as a result, the electrical conductivity σ increases, and the thermoelectric coefficient α decreases. With an increase in the radiation dose, the concentration of defects also increases, and free carriers are captured at the level of the radiation defect.

PREPARATION OF GRAPHENE-DOPED EPOXY COMPOSITES

METIN DAVUT ERSAN, ÖZNUR GÖZÜTOK ATILLA EVCIN AFYON KOCATEPE UNIVERSITY

[email protected]

The aim of this study is to contribute to the studies in the field of nanotechnology in our country and to produce new products with improved properties. For this purpose, it is to produce polymer composites by producing graphene and its derivatives by the classical Hummers method and adding them in thermoset epoxy resin at different rates (0, 0.5 and 1 by weight). First, the produced graphene and its derivatives were characterized by FT-IR, XRD and SEM- EDX analyses. After the composite layer, which will be obtained by adding graphene and its derivatives, which are obtained in nano size under optimum conditions, into the epoxy polymer and homogeneously dispersed, a layered structure was obtained with pure epoxy in the intermediate layer after the composite layer was first poured into the mold. The physical (contact angle, hardness, roughness, homogeneity, density), morphological (section and appearance of the layers from the surface, layer thicknesses) and mechanical properties (tensile strength) of the layered structure were determined.

This study was supported by TUBITAK 2209A-Research Project Support Programme for Undergraduate Students (1919B012004014).

227

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

SIMULATION OF THE DOPING PROCESS IN SEMICONDUCTOR FABRICATION

YILMAZ, M1., AND KAYALI, R GAZIANTEP UNIVERSITY

[email protected]

In this study, we have developed a computer model to simulate a process, called diffusion process for the doping of pure crystal, mostly silicon and germanium, which is used at least once in the production of solid state semiconductor devices, especially in the production of integrated circuits (IC). In this simulation code we have used a simple approach to derive the doped atoms movements based on some approximations depending on the concentration gradient which allows to move atoms from a high concentration region to a less populated one. In the simulation program DIFSIM1T, we have also used direct simulation method with animation that allows the simulation and visualization of the process and very suitable to use on most of the computers anybody could reach. This model has been applied for different diffusion processes having different boundary conditions and the results obtained from our simulation model have been compared with the theoretical results obtained from the models developed by some researchers and commercial companies in the production field and experimental results available only for very powerful computing systems.

Key words: Diffusion, simulation, semiconductors, fabrication of S/C, Integrated Circuits (IC).

228

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PRODUCTION OF KITOSAN AND NANOCLAY ADDED BIODEGRADABLE PLASTICS

NURIYE KALKMAZ, ATILLA EVCIN AFYON KOCATEPE UNIVERSITY

[email protected]

This study was carried out to transform the plastics used in food packaging films into bioplastics that are not harmful to the environment. For this purpose, in order to modify the bioplastic made from corn starch, it was desired to produce bioplastics by using 10% chitosan and different proportions of nanoclay in the production of corn starch-based bioplastics. First of all, the characterizations of the bioplastic material produced with nanoclay, which were added at different rates (1%, 3%, 5%), were made by FTIR-ATR, SEM, EDX, TGA-DTA and strength analyzes. By providing optimum conditions, the morphological and mechanical properties of the starch-based bioplastic with chitosan were determined by adding nanoclay, ensuring that chitosan and starch are homogeneously dispersed in our material. As a result, low-cost, easily obtainable, biodegradable, biodegradable, plant-derived food film packaging was produced with bioplastic with improved properties.

This study was supported by TUBITAK 2209A-Research Project Support Programme for Undergraduate Students (1919B012004031).

PREDICTION OF TOTAL FOULING RESISTANCE OF A MARINE HEAT EXCHANGER USING ANFIS METHOD

NURSAÇ KURT ARZU ÇİLLİ MURAT BEKEN CÜNEYT EZGİ NIŞANTAŞI UNIVERSITY

[email protected]

In order for ships to operate efficiently and stablely in sea transportation, the homogeneous operation of the heat exchanger systems on the ships is important for the efficient operation of the machines on the ships. Heat exchanger loading ensures that the thermo hydraulic efficiency of heat transfer equipment decreases over time. For this reason, the heat exchanger should be cleaned with certain periods. By determining this process, it directly affects its efficiency. In this study, the total fouling resistance of the heat exchanger that may occur in future processes is estimated by using the Anfis method from AI methods with experimental results made to ensure the efficiency of the system at the highest point. Thus, the efficiency of the system was tried to be maintained.

Keywords: Heat exchanger; Fouling resistance; Artificial Intelligence; Anfis. 229

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

POROUS SILICON BASED DIRECT METHANOL FUEL CELL

SADETTIN BERKAY ŞARLI, SÜREYYA AYDIN YÜKSEL KARADENIZ TECHNICAL UNIVERSITY

[email protected]

In this work, the use of mini fuel cells produced in Au/porous silicon/Silicon Schottky structure as a direct methanol fuel cell is demonstrated. The porous silicon produced by using the alcohol: HF: dH2O mixture electrolyte, prepared with different alcohols and different ratios of these alcohols, was used as a proton conduction membrane. Au/Porous Silicon/Silicon cells were fabricated by first forming a porous silicon layer in single-crystalline Si using different kinds of alcohol and proportional electrolyte using anodic etching under illumination, and then coating an Au catalyst layer on porous silicon. By using 85% Methanol:dh2O solution as fuel, an open circuit voltage of up to 1 V was obtained and a maximum power density of about 10 W/m2 was obtained at room temperature. These results show that the Au/Porous Silicon/Silicon direct methanol fuel cell, which uses Methanol:dH2O solution as fuel and operates at room temperature, can be considered as a low-cost mini fuel cell that can be used in small power supply units.

COMPARISON OF CLASSICAL AND QUANTUM SUPPORT VECTOR MACHINES FOR CLASSIFICATION

SARP ALGAN, CENK TÜYSÜZ, MELAHAT BILGE DEMIRKÖZ MIDDLE EAST TECHNICAL UNIVERSITY

[email protected]

Support vector machines (SVMs) are supervised machine learning (ML) algorithms that can make classification or regression. Combining SVM algorithms with quantum computing (QC) has become a popular research area in recent years. Since quantum computers work with qubits instead of normal bits used by classical computers, they can employ the unique properties of quantum mechanics like superposition and entanglement which might provide higher processing capability and convenience in solving certain problems. In QC, kernels are accessible through mapping the data into a higher-dimensional Hilbert space that has no classical counterpart. Classically, computing kernels require a long processing time and due to its unique properties, QC might enable a speed-up as the size of the dataset increases. For this reason, QSVMs are promising ML tools for further use in the future and understanding their potential is crucial. In this poster, performance of quantum support vector machines (QSVMs) with different feature maps are compared with each other and as well as with the classical SVMs using the Iris and Breast Cancer datasets with different numbers of dimensions. Results show that QSVMs can perform slightly more accurate classification than SVMs, as the dimension of the dataset is increased, despite the long training time due to the quantum circuit simulations. 230

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AN APPLICATION OF PVA-ZEOLITE COMPOSITE FILMS AS PACKAGING MATERIAL

SINAN TEMEL, ELIF YAMAN, FATMA ÖZGE GÖKMEN, MEHMET FATIH GÖZÜKIZIL BILECIK ŞEYH EDEBALI UNIVERSITY

[email protected]

Packaging materials are very important for food safety. New products which are redesigned as alternatives to conventional packaging materials expand the boundaries of this safety. In this study polymer-inorganic reinforcement materials have been the subject of widespread research. PVA polymer matrix, which can be easily produced in film form, was chosen. The restrictive water permeability property of PVA is improved with zeolite. Chemical bonding properties of obtained composite films were investigated by the FTIR analysis. The effect of the thermal strength property of the zeolite on the PVA-zeolite composites were demonstrated by TG-DSC analysis. It has been discussed that the obtained films have a long shelf life in addition to food safety with their antifogging properties and UV transmission. Also structural and morphological properties were specified by both XRD and SEM techniques.

INVESTIGATION OF NANO SIO2 EFFECT ON STARCH-PVA NANOCOMPOSITE FILMS

SINAN TEMEL, FATMA ÖZGE GÖKMEN, ELIF YAMAN, MEHMET FATIH GÖZÜKIZIL BILECIK ŞEYH EDEBALI UNIVERSITY

[email protected]

In this study, starch-PVA based composite films combined with nano SiO2 were prepared by solvent casting technique. Different amounts of nano SiO2 additives were added to starch-PVA films and the results were evaluated. Accordingly, in starch-PVA films containing nano SiO2 added in the ratio of 1, 3 and 5 percent by mass, nano SiO2 was homogeneously distributed on the surface of the composite films. However, loss of elasticity was observed in films containing 3% nano SiO2. The unique properties of nanocomposite films obtained with small amounts of nanomaterial reinforcement have been demonstrated. Composite films have been characterized by FT-IR, UV-Vis spectrophotometry and FESEM. Fogging tests were compared. This study aims to demonstrate the potential use of starch-PVA nanocomposite films with unique properties in food packaging applications. The surface of starch / PVA films is strengthened by the deposition of SiO2 nanoparticles. Starch and PVA polymers in the film have been used together to improve their water resistance and mechanical strength. An additional cross-linker was not used in these films prepared for use in food packaging applications due to their toxic properties. 231

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Condensed Matter Physics

232

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ZNO GROWTHS IN O2/O3 ATMOSPHERE BY ULTRASONIC SPRAY CHEMICAL VAPOR DEPOSITION METHOD

ECE KUTLU-NARİN, POLAT NARİN, SEFER BORA LİŞESİVDİN ANKARA UNIVERSITY

[email protected]

Zinc oxide (ZnO) which is one of the transparent conductive oxide (TCO) is a wide bandgap semiconductor material with 3.37 eV and a large exciton binding energy with ~60 meV. ZnO material has a huge potential for both electronic and optoelectronic applications such as Light-emitting diodes (LED), solar cells, transistors, gas sensing, and photodetectors (PDs). In the last years, ZnO has been investigated by different experimental techniques due to these wide ranges of applications of ZnO. In this study, ZnO nanostructures on c-Al2O3, SiO2/Si, and soda-lime substrates were grown using the Ultrasonic Spray Chemical Vapor Deposition (USCVD) method. ZnO samples were grown in O2/O3 mixed gas atmosphere with 5 L/min. flow at 350 oC temperature. The characterizations of the grown thin films have been made with X-ray diffraction (XRD), Atomic Force Microscopy (AFM) measurements, Scanning Electron Microscope (SEM). In the ZnO samples grown on soda- lime and SiO2/Si in O3 atmosphere, (002), (100), and (101) peaks corresponding to the polycrystalline structure were observed in XRD results. Besides, the peak of (002) in the ZnO sample grown on c-Al2O3 is quite dominant. According to the results, usage of O3 in the USCVD method is observed to give better structural properties concerning growths in the pure O2 atmosphere.

STRUCTURAL AND OPTICAL PROPERTIES OF ZNSE THIN FILM GROWTH BY SPUTTERING TECHNIQUE

ESRA BALCI, SEMRAN SAĞLAM, SÜLEYMAN ÖZÇELİK GAZI UNIVERSITY

[email protected]

Structural and Optical Properties of ZnSe Thin Film Growth by Sputtering Technique Zinc selenide (ZnSe), has received considerable attention because of possible application which results from its unique physiochemical properties such as, large band gap with direct transition and low optical absorption in the visible region, suitable refractive, high-rise electrical conductivity, high photo- catalytic activity and environment friendliness. Ultrasonically cleaned glass slides are used as substrates for receiving the different thickness of Zinc selenide (ZnSe) films. The film thickness is one of the most significant parameters which affect the physical properties of ZnSe thin films. We investigated the optical and structural parameters of ZnSe thin films in correlation with film thickness (~100,300 and 600nm). Various techniques such as UV–vis-NIR spectrophotometer, x-ray diffraction lines and AFM (Atomic Force Microscope) were used to investigate aforementioned parameters. The optical band gap ranges from 2.54 to 2.69 eV and it is founded that it increases with film thickness. References M F Hasaneen et al 2020 Mater. Res. Express 7 016422 Ou K, Wang S, Bai L, Wang Y, Zhang K and Yi L 2019 Investigation on annealing temperature-dependent optical properties of electron beam evaporated ZnSe thin films Thin Solid Films 669 247–52. 233

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A NON-CARCINOGENIC ADDITIVE FOR IMPROVING THE IONIZING RADIATION SHIELDING PERFORMANCE OF EPOXY: SILVER MICROPARTICLES

MEHMET YILMAZ1*, M. ERTUĞRUL KALKAN1, SERLIN İÇ1, YAŞAR KARABUL1, MEHMET KILIÇ1, AND ZEYNEP GÜVEN ÖZDEMİR1 1 DEPARTMENT OF PHYSICS, YILDIZ TECHNICAL UNIVERSITY

[email protected]

The mechanics of the extracellular matrix (ECM) is very important in tissue engineering applications. Biodegradable and/or non-biodegradable materials that exhibit viscoelastic and stress relaxation are used. In this work, bio-hybrid films were produced by using Bifidobacterium animalis subsp. lactis BB-12 probiotic strain with sodium alginate, which demonstrates biocompatibility and facilitated gelation properties. Bio-hybrid films were characterized by using different methods. Microstructural variations of Bifidobacterium BB-12 probiotic-added sodium alginate biofilms were identified by the ATR-FTIR analytical method. In addition, XRD spectra of the pure SA film were investigated as well as bio-hybrid films containing different concentrations of BB-12.

OPTICAL AND ELECTROCHROMIC PROPERTIES OF GRAPHITIC LAYERS FOR THE USAGE AS ELECTRODE MATERIAL IN ELECTROCHROMIC COATINGS/DEVICES

MELTEM BABAYIĞIT CİNALİ, ÖZLEM DUYAR COŞKUN THIN FILM PREPARATION AND CHARACTERIZATION LABORATORY, PHYSICS ENGINEERING DEPARTMENT, HACETTEPE UNIVERSITY

[email protected]

Indium tin oxide (ITO) is the most common electrode material which is used in electrochromic applications because it‘s high electrical conductivity and good optical transparency. However, ITO is a toxic material with a high cost and unstable in acidic and basic environments. Potential replacement materials for ITO are carbon-based materials such as graphene, graphite, multilayered graphitic structures and nanostructured carbon etc [1, 2]. In this study, graphitic layers were synthesized by using chemical vapor deposition technique on copper foils and transferred onto the flexible PET substrates via PMMA assisted transfer process. Optical and electrochromic properties of the graphitic layers were investigated.

Acknowledgments: This work is supported by the research grant of the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the Project number 118F070.

1.Xu, Y., & Liu, J. (2016). Graphene as transparent electrodes: fabrication and new emerging applications. Small, 12(11), 1400-1419. 2.Choi, D. S., Han, S. H., Kim, H., Kang, S. H., Kim, Y., Yang, C. M., ... & Yang, W. S. (2014). Flexible electrochromic films based on CVD-graphene electrodes. Nanotechnology, 25(39), 395702. 234

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

OPTICAL AND ELECTROCHROMIC PROPERTIES OF LICOO2 THIN FILMS

MELTEM BABAYIĞIT CİNALİ, MEHMET ALI, AYBÜKE SENBANI, MUHAMMED CIHAD KÜÇÜKARSLAN, ÖZLEM DUYAR COŞKUN THIN FILM PREPARATION AND CHARACTERIZATION LABORATORY, PHYSICS ENGINEERING DEPARTMENT, HACETTEPE UNIVERSITY

[email protected]

The electrodes made from carbon-based materials (graphene, graphite, multilayered graphitic structures and nanostructured carbon etc.) have the potential for the use in electrochromic devices as an opponent to indium tin oxide (ITO) [1]. In this work, we aim that using the multilayered graphitic layers as transparent and conductive electrodes in a novel electrochromic coating/device, which would be constructed in the half cell and whole cell configuration. Graphitic layers were synthesized by using chemical vapor deposition technique on copper foils and transferred onto the flexible PET substrates. The self-Li ion containing LiNbO3 and LiCoO2 targets were used to prepare the electrochromic devices as an ion source on the good couloring cathodic and anodic materials like Nb2O5 and NiO, respectively. Optical and electrochromic properties of these devices were investigated.

Acknowledgments: This work is supported by the research grant of the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the Project number 118F070.

1.Xu, Y., & Liu, J. (2016). Graphene as transparent electrodes: fabrication and new emerging applications. Small, 12(11), 1400-1419.

235

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DETERMINATION OF STRUCTURAL AND ELECTRICAL PROPERTIES OF ZNO THIN FILMS GROWN BY MIST-CVD METHOD ON SAPPHIRE WITH DIFFERENT ORIENTATIONS

MELTEM YAYLA, SEFER BORA LISESIVDIN, MEHMET KASAP GAZI UNIVERSITY, FACULTY OF SCIENCE, DEPARTMANE OF PHYSICS

[email protected]

Zinc oxide (ZnO) is an important semiconductor material with a wide direct band gap, high exciton binding energy and high electron mobility, which can be used in many applications and is widely studied due to its properties such as growth in different morphologies. In addition, ZnO provides easy access to this material due to its low cost. Due to its unique optical, electrical and semiconductor properties, ZnO thin films are used in various applications such as laser diodes and light emitting diodes, some optoelectronic applications, solar cells, front contact for liquid crystal displays, production of transparent thin film transistors. ZnO thin films; are grown by various methods. Mist-CVD method is a promising method due to its environmental friendly, low energy consumption, low cost, safe and easy application process, large area accumulation at low temperatures and producing quality films. In this study, ZnO thin films were grown by Mist-CVD method on sapphire substrates with c-, r- ve m- orientation. ZnO samples were grown under ozone gas atmosphere at 350℃ temperature for 30 minutes. X-Ray diffraction (XRD), atomic force microscope (AFM) and scanning electron microscopy (SEM), Raman spectroscopy and Hall effect measurements were carried out. According to XRD result grown ZnO films have hexagonal phase. Both AFM and SEM images are shown a continues and homogenous films on the surface. The vibration modes related to hexagonal ZnO are observed by Raman spectroscopy. The XRD peaks of ZnO has become stronger after the annealing of properties of the grown samples.

236

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

AG DOPED SINGLE CRYSTAL AND Σ3(111) GRAIN BOUNDRY CDTE STRUCTURE

ASLI ÖZTOPRAK, MURAT ÇALIŞKAN YILDIZ TECHNICAL UNIVERSITY

[email protected]

CdTe is the direct band gap of 1.5 eV semiconductor which is nearly optimum value and having high absorption coefficient makes it attractive for solar cells and x-ray detector applications. On the other hand, the electron affinity of p conductivity type CdTe is as high as about 4.5 eV. This property makes CdTe difficult material in PV and other applications, since a metal with the work function greater than that of the semiconductor is required for the formation of an ohmic contact to p-type CdTe. Using Ag (Silver) metal which has relatively high work function is another solution in pCdTe/nCdS solar cells and CdTe detector application to form an ohmic contact. Granular strucuture of CdTe is formed during the thin film production process. In this theoretical study, electronic band structure and formation energy of Ag doped single crystal and Σ3(111) grain boundary structures are reported. The calculations were carried out with density functional theory (DFT) along with the generalized gradient approximation (GGA).

This study was supported by the Scientific and Technology Research Council of Turkey (TÜBİTAK) under the grant 114F247.

INVESTIGATION OF RAMAN AND OPTICAL PROPERTIES OF CARBON THIN FILMS PRODUCED BY, CONTROLLED DISCHARGE OF GENERATED VOLTAGE VIA VARIABLE RESISTOR, IN THE ECR PRODUCTION METHOD

MUSTAFA ESEN*, MEHMET ESEN** *ISPARTA UNIVERSITY OF APPLIED SCIENCES, TECHNICAL SCIENCES VOCATIONAL SCHOOL, **CUKUROVA UNIVERSITY, ADANA VOCATIONAL SCHOOL

[email protected],

In this study, carbon, zinc oxide and indium materials were coated via ECR(electron cyclotron resonance) system and evaporation systems. After the textile fabrics were coated with carbon nano material using the ECR system, zinc and indium were evaporated with the evaporator system. Electromagnetic reflection, absorption and shielding properties were measured by placing metal plates behind nano-composite layered textile surfaces. The reflection properties were investigated in the frequency range of 3-18Ghz and 15-40Ghz. It has been observed that the carbon coating contributes to the zinc oxide shielding properties. The results showed that the coating with the highest shielding property was obtained from zinc oxide and carbon coating and also found that only the carbon coating contributes to shielding and absorption.

Key words: ECR, Textile Fabrics, Reflection, Shielding, Nano Coating. 237

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PERFORMANCE OF INTRINSIC BC NANOLAYER FOR THE ADSORPTION OF DOPAMINE AND 5-FLUOROACIL(5FU): A DFT STUDY

1-NIJAT SHUKUROV (ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING) 2-ÇAĞIL KADEROĞLU (ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING) 3-ETHEM AKTÜRK (ADNAN MENDERES UNIVERSITY, DEPARTMENT OF PHYSICS) 4-HANDAN OLĞAR (ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING)

[email protected]

Because of their specific structure, graphene and graphene-like 2D nanomaterials have attracted great attention in almost all spectrum of biosensing technologies and drug delivery studies. Honeycomb structures are very sensitive to perturbation from the environment due to their large area of interaction surface. This property of graphene-like nanolayers also provides the modification characteristics of surface chemistry through functionalization. In our research, we have stressed on BC monolayer for studying computational details of dopamine and 5Fu adsorption process. First of all, BC adsorbent has been investigated by using density functional theory(DFT) calculations. Geometric optimization process of several adsorption configurations have been completed successfully. Finally, the quantum calculations of the binding energy, orbitals and charge exchange of molecular adsorption configurations have been presented as total, partial DOS, BAND structure plots and charge distribution.

ADSORPTION OF GLYCINE ON THE ASP MONOLAYER SURFACE

OKAY TERCAN1, PINAR KAYA1, ÇAĞIL KADEROĞLU1, ETHEM AKTÜRK2, HANDAN OLĞAR1 1ANKARA UNIVERSITY, DEPARTMENT OF PHYSICS ENGINEERING, 2ADNAN MENDERES UNIVERSITY, DEPARTMENT OF PHYSICS

[email protected]

Two-dimensional buckled AsP in honeycomb structure has indirect band gap and is a stable material. The glycine biological molecule is a biosynthetic precursor used in red blood cells and is the simplest, stable amino acid with a single hydrogen atom as its side chain. Its small size helps it function as a flexible link in proteins and allows for extracellular signaling. In this study, as a biosensor, the adsorption of glycine biomolecule on the AsP monolayer surface will be investigated with first principles DFT calculations. Geometric optimizations of the systems formed with different configurations on the AsP monolayer surface of glycine will be made and the effects of the structural differences on the electronic properties will be examined.

Keywords: Density Functional Theory (DFT), Structural and Electronic Properties, Point Defects, Hexagonal honeycomb structure, single layer nanostructures, biological molecules, adsorption.

238

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A FIRST PRINCIPLE CALCULATIONS OF MONOLAYER INSE IMPURITY WITH PD, PT, AG, AND AU

J.M. ALL ABBAS1,2, P. NARIN1*, S.B. LISESIVDIN1, E. OZBAY3,4,5 1 DEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, GAZI UNIVERSITY, 2 DEPARTMENT OF PHYSICS, COLLEGE OF SCIENCE, MOSUL UNIVERSITY, 3 NANOTECHNOLOGY RESEARCH CENTER, BILKENT UNIVERSITY, 4 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING, BILKENT UNIVERSITY, 5 DEPARTMENT OF PHYSICS, BILKENT UNIVERSITY,

[email protected]

Zinc Oxide (ZnO) has been attracted among Transparent Conductive Oxide (TCO) materials because of its simple producibility and its unique physical properties. There is a lot of growth method for ZnO. ZnO thin films are grown with Molecular Beam Epitaxy (MBE), RF-Magnetron Sputtering, Pulsed Laser Deposition (PLD), Chemical Vapor Deposition (CVD), and Sol-gel methods. As well as these methods, a mist-CVD method which is a hybrid of CVD and spray pyrolysis is a new growth method that emerged in recent years. In this study, the structural and optical properties of ZnO nanoplatelets on SiO2/Si grown by the mist-CVD method at different growth temperatures have been investigated. The crystal properties of grown ZnO nanoplatelets have been studied with X-ray Diffraction (XRD), Atomic Force Microscopy (AFM), and Scanning Electron Microscopy (SEM). grown ZnO nanoplatelets, contrary to (0002) direction, are preferred to grow in (101 ̅2) and (112 ̅0) directions. As a result of both AFM and SEM measurements, it is determined that ZnO nanoplatelets are grown 2-dimensional (2-D) sheet-like in a hexagonal shape. Depending on increasing growth temperature, ZnO nanoplatelet intensity is decreased on the surface. This can be explained by the Leidenfrost effect well-known in the literature. As well as this, the shape of the ZnO nanoplatelets is changed with increasing growth temperature. The optical properties of ZnO nanoplatelets have been determined with confocal Raman spectroscopy. According to obtained results, E2 (low) and E2 (high) peaks related to the characteristic peaks of wurtzite ZnO are shown.

Acknowledgment: This work was supported by TUBITAK under Project No.116F197.

239

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

STRUCTURAL AND OPTICAL PROPERTIES OF ZNO NANOPLATELET STRUCTURE GROWN BY MIST-CVD

P. NARIN1*, E. KUTLU NARIN1, S. B. LISESIVDIN1 1 DEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, GAZI UNIVERSITY,

[email protected]

In this study, monolayer Indium Selenide (InSe) is studied for 4x4 supercell structure using an ab initio approximation using Generalized Gradient Approximation (GGA) formalism. The electronic and optical properties have been calculated for both pure and substitutional doped monolayer InSe with Palladium (Pd), Platinum (Pt), Silver (Ag), and Gold (Au) atoms. With substitutional doping, monolayer InSe has exhibited the spin- dependent electronic structure. In addition, the flat band formations are shown in electronic band structures with doping atoms instead of Indium atoms. Ag and Au doped InSe monolayer have a unique flat band at near Fermi level. Both electronic and optical behavior of monolayer InSe have changed with substitutional doping.

DFT INVESTIGATION OF ELECTRONIC AND OPTICAL PROPERTIES OF SILVER DOPED GERMANENE

TUGCE HAN, BEYZA SARIKAVAK-LISESIVDIN, SEFER BORA LISESIVDIN GAZI UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS

[email protected]

Germanene is a germanium allotrope 2D structure, which is one of the gains an important amount of interest in the recent years. The fact that it has a similar structure to graphene and possibility of growing germanene experimentally has increased this interest further. The minimum energy configuration of germanene has a buckled honeycomb lattice. Because of germanene is already experimentally possible, understanding the effect of natural impurities on properties of grown germanene is an important problem to resolve. In our study, we investigated the changes in electronic and optical properties of buckled germanene material by doping silver, which is a natural impurity of Germanium, using Density Functional Theory (DFT). All of the calculations were carried out using the Atomistix Toolkit-Virtual Nano Lab (ATK-VNL) software based on DFT. A supercell structure with 98 atoms (7x7) was used. The k-points and cut off energy were taken as 5x5x1, 100 Hartree, respectively. For the calculations SGGA-PBE approach is used. The band structures, density of states and optical spectrum of the pristine and doped structures are calculated.

240

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HYPERNETTED-CHAIN THEORY OF LIQUID Α-AL2O3: PRELIMINARY RESULTS

UNSAL AKDERE, SECKİN D. GUNAY, CETİN TASSEVEN YILDIZ TECHNICAL UNIVERSITY

[email protected]

Aluminum oxide is one of the most important ceramic materials due to its uses in physics, chemistry, materials science and engineering. It has a wide variety of metastable crystalline phases which are classified as α and γ series. Structural properties such as pair correlation functions and static structure factors of liquid α-Al2O3 have been investigated by solving integral equation called Ornstein-Zernike with the hypernetted-chain (HNC) approximate closure. Buckingham form of effective interionic pair potential have been used to model the interactions. Results are compared with available experimental and simulated data.

241

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ULTRASONICALLY SPRAY DEPOSITED TIN-DOPED INDIUM OXIDE THIN FILMS FOR PHOTOVOLTAIC SOLAR CELL APPLICATION

IBRAHIM GUNES1, EMRAH SARICA2, IDRIS AKYUZ3, AYSE KUCUKARSLAN4, SERHAT OZDER4 AND VILDAN BILGIN4 1CANAKKALE ONSEKIZ MART UNIVERSITY, BIGA VOCATIONAL SCHOOL, 2BURSA TECHNICAL UNIVERSITY, DEPARTMENT OF PHYSICS, 3ESKISEHIR OSMANGAZI UNIVERSITY, DEPARTMENT OF PHYSICS, 4CANAKKALE ONSEKIZ MART UNIVERSITY, DEPARTMENT OF PHYSICS

[email protected]

In this study, tin sulfide (SnS) films were grown at different solution flow rates (4, 6 and 8 ml/min) on microscope glass substrates at substrate temperature of 350°C by ultrasonic spray pyrolysis technique. The structural properties of the films were investigated using the X-ray diffraction technique and it was seen that all the films were in cubic structure. In addition, some structural parameters of the films such as texture coefficients, average crystallite sizes, lattice constants and micro-strains were calculated using XRD patterns. The surface properties of all films were examined by atomic force microscope (AFM) and scanning electron microscope (SEM) and it was seen that the surfaces of all films were almost homogeneous. Elemental analyzes of the films were carried out by using energy dispersive x-ray spectroscopy. The thickness values of the films were obtained from the cross-section SEM images and it was revealed that the film thicknesses increased with increasing flow rate. Optical transmittance and absorption spectra of the films in the wavelength range of 300-1100 nm were taken and some optical parameters of the films such as forbidden energy gaps and Urbach parameters were determined using these spectra. The electrical resistivities of SnS films were determined by the four-probe method. As a result, it has been determined that SnS films can be successfully deposited by ultrasonic spray pyrolysis method for photovoltaic applications.

Keywords: SnS thin films; Ultrasonic spray pyrolysis; electrical and optical properties; XRD, AFM, SEM, EDS.

Acknowledgements: This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the Project Number FBA-2020-3136.

242

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ULTRASONICALLY SPRAYED AG DOPED SNS FILMS: OPTICAL, STRUCTURAL AND MORPHOLOGICAL PROPERTIES

AYSE KUCUKARSLAN1, IBRAHIM GUNES2, EMRAH SARICA3, IDRIS AKYUZ4, VILDAN BILGIN1 AND TUNCAY ALDATMAZ5 1CANAKKALE ONSEKIZ MART UNIVERSITY, DEPARTMENT OF PHYSICS, 2CANAKKALE ONSEKIZ MART UNIVERSITY, BIGA VOCATIONAL SCHOOL, 3BURSA TECHNICAL UNIVERSITY, DEPARTMENT OF PHYSICS, 4ESKISEHIR OSMANGAZI UNIVERSITY, DEPARTMENT OF PHYSICS, 5CANAKKALE ONSEKIZ MART UNIVERSITY, BACHELOR DEGREE PROGRAM IN PHYSICS

[email protected]

This study presents the production of pure and different amounts of Sn-doped indium oxide (In2O3) films on microscope glass substrate with Ultrasonic Spray Pyrolysis Technique and the effect of Sn doping on some physical properties of pure films. Aqueous solutions of 0.01 M SnCl2 as the Sn source and 0.01 M InCl3 as the In source were prepared. A total of 150 ml of initial spraying solution was obtained by mixing the appropriate proportions of solutions such that the volume percentage of the Sn source in the spraying solution to be 0, 4, 8 and 12%. The spraying process was carried out for 30 minutes at a substrate temperature of 475°C, which was controlled by an iron-constantan thermocouple, and at a constant flow rate of 5 ml.min-1. X-ray diffractometer (XRD), four-probe method and atomic force microscope (AFM) were used to analyze the structural, electrical and surface properties of all films, respectively. XRD patterns showed that all the films have polycrystalline structure and the crystallization levels of the pure films deteriorated relatively due to the increase of Sn doping. Four-probe measurements revealed that the electrical conductivity values of In2O3 films increased slightly depending on the Sn doping. The AFM results showed that the surface of films had an almost homogeneous distribution, but this situation was slightly deteriorated for 12% Sn doped films.

Keywords: ITO thin films; Ultrasonic spray pyrolysis; electrical properties; XRD, AFM.

Acknowledgements: This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the Project Number FBA-2020-3181.

243

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

ULTRASONIC SPRAY PYROLYSED TIN SULFIDE FILMS: EFFECT OF SPRAYING SOLUTION FLOW RATE

EMRAH SARICA1, IBRAHIM GUNES2, AYSE KUCUKARSLAN3 AND VILDAN BILGIN3 1BURSA TECHNICAL UNIVERSITY, DEPARTMENT OF PHYSICS, 2CANAKKALE ONSEKIZ MART UNIVERSITY, BIGA VOCATIONAL SCHOOL, 3CANAKKALE ONSEKIZ MART UNIVERSITY, DEPARTMENT OF PHYSICS

[email protected]

In this study, pure and Ag doped SnS films were deposited on microscope glass substrates at substrate temperature of 350±5°C by using Ultrasonic Spray Pyrolysis technique, and the effect of Ag doping on optical, structural and morphological properties of SnS films was investigated. Optical, structural and morphological properties of all films were analyzed using UV-Vis spectrophotometer, X-ray diffractometer (XRD) and atomic force microscope (AFM), respectively. X-ray diffraction studies showed that all films were formed in SnS cubic structure and the crystallization levels of the films were relatively deteriorated due to the increase in the Ag doping ratio, especially for 9% doped films. It was determined that the average transmittance values of all films are between 60-75% in the visible region. The band gap values of the films were calculated to be between 1.81- 2.44 eV. It was observed that the surface morphologies of all films were almost homogeneous, but slightly deteriorated for 9% Ag doped films.

Keywords: SnS: Ag thin films; Ultrasonic spray pyrolysis; optical properties; XRD, AFM.

Acknowledgements: This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the Project Number FHD-2021-3484.

244

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations High Energy, Particle and Plasma Physics

245

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

A STUDY AND DESIGN OF A BEAM DUMP UNIT FOR A 40MEV LINEAR ACCELERATOR

ÇITE, L. H*, AND YILMAZ, M GAZIANTEP UNIVERSITY

[email protected]

The beam dump discussed in this sudy will be used to stop electron beam after producing the FEL (Free Electron Laser). There are three criteria for design of beam dump. Firstly, electron beam is stopped safely and reduced backscattered exiting secondary particles. Secondly, radioisotope production is must be very small. The last criteria for design of beam dump is cooling system. In this present study, cooling system for beam dump were investigated. Cooling system is designed due to incoming beam of electron onto the core of the beam dump to prevent the whole system from melting by the heat produced by the stopped beam. Finite Difference Method is used to find the temperature distribution by conduction of heat transfer. An open source engineering software (Engineering Equation Solver) used to calculate convection of heat transfer in beam dump and amount heat carrier, carrier velocity and aluminum surface area were also calculated. Water is used as the heat carrier in the cooling system in our design. Maximum temperature for one hour in beam dump after electron hit to beam dump is estimated to be about 55°C. Channel diameter, inlet temperature of water and outlet temperature of water is taken as 0.004 m, 20°C and 22°C approximately for calculating convection heat transfer of water circulating within the channels. Surface of beam dump is assumed as 25°C. Results are found as 0.04 kg/s for the amount of water and 3.19 m/s for the water velocity approximately. Surface area to cool the carbon material needed is 0.03 m2 for the designed cooling unit beam dump.

Key words: Beam Dump, Accelerotors, electrons, radiation, scattering, design, simulation.

246

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Material Science and Applications

247

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PREPARATION OF BARIUM BENTONITE FOR POTENTIAL USES IN RADIATION SHIELDING APPLICATIONS

ATILLA EVCIN*, SÜLEYMAN AKPINAR, İBRAHIM GÜNEŞ, BAHRI ERSOY, HAKAN ÇIFTÇI AFYON KOCATEPE UNIVERSITY, TURKEY

Considering the increase in the number of nuclear power plants, the increase in the number of medical devices emitting radiation and the increase in nuclear accidents, the importance of radiation protection measures emerges. Today, lead is generally used as an shielding material to protect from radiation in buildings. Lead has many negative effects on human health as well as having radiation-scavenging properties. Another disadvantage of lead is that it will release toxic gases for human health in a possible fire. In the studies in the literature, the radiation shielding properties of heavy concretes using barite were examined and it was stated that they were more suitable than normal concretes. In this study, it was aimed to convert Na-bentonite into Ba-bentonite by cation exchange reaction in order to combine the efficiency of high atomic weight barium element in barite with bentonite. The bentonite clay used in this study was obtained from Samaş Sanayi Madenleri A.Ş., located in the Reşadiye-Tokat/Turkey region. The adsorption of Ba2+ cation on bentonite and its intercalation with the cation exchange process between layers were investigated depending on the temperature

This study was supported by TUBITAK-1001 Programme (project no : 219M268)

FIRST-PRINCIPLES STUDIES ON STRUCTURAL AND ELASTIC PROPERTIES PD2COTL

FADIME IRMAK BALMUMCU1, YELIZ GÜLEŞCI KARTAL1, ZIYA MERDAN1* 1GAZI UNIVERSITY, SCIENCE FACULTY, DEPARTMENT OF PHYSICS,

[email protected]

Heusler type compounds are ferromagnetic and also due to their intriguing magnetic properties they are the ideal material group for spin-electronic and magneto-electronic applications. The electronic properties of the Pd2CrBi compound in the L21 crystal structure were examined via Density Funcitonal Theory (DFT) by employing the Generalized Gradient Approch (GGA) in the present study. The lattice constant is found to be 6.526 A0, and the total magnetic moment is found to be 4.201 µB/f.u. For spin-up and spin-down couplings, the density state curves of Pd2CrBi compound and the spin- polarized band structures are presented. The acquired results are consistent with the literature. 248

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DENSITY FUNCTIONAL THEORY OF ELECTRONIC AND MAGNETIC PROPERTIES OF PD2CRBI

FADIME IRMAK BALMUMCU1, YELIZ GÜLEŞCI KARTAL1, ZIYA MERDAN1* 1GAZI UNIVERSITY, SCIENCE FACULTY, DEPARTMENT OF PHYSICS

[email protected]

Density functional theory was used to study the structural characteristics of an Pd2CoTl full Heusler compound. The lattice constant and total magnetic moment value of Pd2CoTl compound were determined. The lattice constant is found to be 6.351 A0, and the total magnetic moment is found to be 1.712 µB/f.u. For Pd2CoTl compound, numerical first- principles calculations of the elastic constants C11, C12 and C44 are performed. Furthermore, it was discovered that Pd2CoTl compound has a metallic character based on calculations involving the electronic band structure, total and partial densities state for this compound.

AN X-RAY DIFFRACTION STUDY ON ZINC ALUMINATE SPINELS DOPED WITH NI

HANIFI KEBIROGLU, FILIZ ERCAN, TURAN İNCE, SERDAR ACAR, TANKUT ATES, ISMAIL ERCAN, SERHAT KESER, NIYAZI BULUT, OMER KAYGILI FIRAT UNIVERSITY

[email protected]

In this study, we investigated the effects of Ni-doping on the crystal structure-related parameters of the zinc aluminate (ZnAl2O4), which is a kind of the oxide spinels, the structure known also as the gahnite. In this concept, the ZnAl2O4 samples doped with Ni at various amounts were prepared, and the effects of the amount of Ni on their crystal structure-related parameters containing the crystallinity, crystallite size, lattice parameters, and unit cell volume were investigated in more detail using the X-ray diffraction (XRD) data. With adding of Ni into the ZnAl2O4 structure, all the above- mentioned parameters changed. A continuous decreasing trend in the crystallinity, crystallite size, lattice parameters, and unit cell volume values was observed.

249

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECT OF YTTRIUM CONTENT ON THE FORMATION OF YTTRIUM OXIDE IN ZINC ALUMINATE SPINELS

HANIFI KEBIROĞLU, SERDAR ACER, TURAN İNCE, TANKUT ATES, SERHAT KESER, NIYAZI BULUT, OMER KAYGILI FIRAT UNIVERSITY

[email protected]

Zinc aluminate or zinc aluminum oxide (ZnAl2O4) type spinel materials have been used in various technical fields. In the present study, we investigated the effects of yttrium (Y) addition on the formation of the secondary phase of yttrium oxide (Y2O3) in the ZnAl2O4 spinel structure. The un-doped and Y-doped ZnAl2O4 samples at different amounts were synthesized. The determination of the as-mentioned effects of the dopant of Y on the phase composition of the samples was done using X-ray diffraction (XRD) analysis. For the higher amounts of Y, the formation of the Y2O3 phase was detected, while no secondary phase formation was observed for the samples containing lower than 5at%Y.

250

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF THE STRUCTURE OF SODIUM ALGINATE (SA)/BIFIDOBACTERIUM ANIMALIS SUBSP. LACTIS BB-12 PROBIOTIC BIOHYBRID FILMS

1MEHMET YILMAZ, 1CENK DENKTAŞ, 2DERYA YILMAZ BAYSOY, 1ALTAN BOZDOĞAN, 3HÜSEYIN SANCAR BOZKURT, 1KUTSAL BOZKURT AND 1ORHAN ÖZDEMİR 1YILDIZ TECHNICAL UNIVERSITY, FACULTY OF ARTS&SCIENCES, PHYSICS DEPARTMENT, 2ISTANBUL AYDIN UNIVERSITY, BIOMEDICAL DEVICE TECHNOLOGY, 3MALTEPE UNIVERSITY MEDICINE FACULTY, INTERNAL MEDICINE, CLINIC OF GASTROENTEROLOGY,

[email protected]

Pd and Ru are two key Platinum group elements formed in two different atomic structures in bulk. Thus Pd -Ru alloys are classified in the bulk immiscible alloy. However, the structure of Pd-Ru bimetallic nanoparticles (NPs) has been controlled in nanoscale. Recently, Kusada and co-workers have reported that Ru NPs sub<3nm are in fcc structure. Therefore, it is interesting to investigate the material properties of Pd-Ru bimetallic NPs. The size effect of Pd-Ru bimetallic alloys has not yet been determined clearly. In this work, the size and temperature-dependent properties of equiatomic Pd0.5Ru0.5 NPs have been investigated by molecular dynamics simulations. The size effect on the thermal and structural stability of NPs have been obtained by morphological changes, CAN, g(r) and melting point. The size-dependent melting points have obtained for Pd0.5Ru0.5 NPs. The segregation in the alloy NPs has started near the melting point and ended with forming a core-shell morphology. Thus, Ru atoms form a core in NPs surrounded by a shell with Pd atoms. Our results are in good agreement with those obtained by previous calculations. This work will be extended to ternary PdRuX alloys.

[1] D. Wu, K. Kusada and H. Kitagawa, Sci. Technol. Adv. Mater., 17, 583-596 (2016). [2] S-H. Hung, H. Akiba, O. Yamamuro and T. Ozaki, RSC Adv., 10, 16527-16536 (2020).

251

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE EFFECTS OF PR AND CE ADDITION ON THE LINEAR ABSORPTION COEFFICIENT OF HYDROXYAPATITE

LALA IBRAHIMZADE, OMER KAYGILI, TANKUT ATES, TURAN İNCE, SERDAR ACAR, HANIFI KEBIROGLU, NIYAZI BULUT, FILIZ ERCAN, SERHAT KESER FIRAT UNIVERSITY

[email protected]

As well-known, hydroxyapatite (HAp) has been widely used in medical applications as an implant material because of its high bioactivity, osteoconductivity, and non-toxicity. There are many experimental studies on its synthesis and characterization. However, there are only a few studies on its theoretical investigation in comparison to the experimental studies in the literature. In this study, we modeled Ce-based HAp structures doped with Pr. Ce content was kept at a constant value and Pr content was increased for each new structure. After optimizing these structures, we observed that the bandgap value decreased continuously with the increasing Pr content. Additionally, the bandgap values for all the co-doped structures in this sample were found to be smaller than those of the values reported for the un-doped HAp in the literature.

A THEORETICAL STUDY ON THE CALCULATION OF THE BANDGAP OF PR AND CE CO-DOPED HYDROXYAPATITES

LALA IBRAHIMZADE, OMER KAYGILI, TANKUT ATES, TURAN İNCE, SERDAR ACAR, HANIFI KEBIROGLU, NIYAZI BULUT, FILIZ ERCAN, SERHAT KESER FIRAT UNIVERSITY

[email protected]

Four hydroxyapatite (HAp) structures co-doped with Ce and Pr were modeled theoretically by using density functional theory (DFT) in this study. The linear absorption (or attenuation) coefficient (LAC) for each structure was computed from the data belonging to the optimized structure. Ce content was kept at a constant value of 0.35at.% and Pr content was increased from 0.35at.% to 1.40at.% in the present investigation. It was observed that the LAC value increased with the increasing amount of Pr element in the HAp structure. For the X-ray radiation with the photon energy of 22.105 keV, the LAC value were estimated to be 15.98, 16.00, 16.02 and 16.06 cm-1 for 0.35Ce-0.35Pr- HAp, 0.35Ce-0.70Pr-HAp, 0.35Ce-1.05Pr-HAp, and 0.35Ce-1.40Pr-HAp, respectively.

252

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

THE THEORETICAL CALCULATIONS OF THE BANDGAPS FOR CU-FREE AND CU-DOPED ZNO STRUCTURES

TURAN İNCE, HANIFI KEBIROGLU, SERDAR ACAR, TANKUT ATES, NIYAZI BULUT, SERHAT KESER, OMER KAYGILI FIRAT UNIVERSITY

[email protected]

In this study, the crystal structure and morphology of strontium oxide (SrO), which has been widely used in various technological applications due to its useful optical, thermal, mechanical, magnetic, and electrical properties, was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. It was observed that the crystallite size of the SrO structure increased with the increasing temperatures. The cubic crystal structure was not affected by the temperature. The morphological investigations showed that all the samples produced in this study had particles with a cube shape. It was also seen that the higher temperatures caused the formation of the greater grains. No impurity was detected for all the samples. The as-detected amounts of both Sr and O are close to each other, confirming the stoichiometry.

INVESTIGATION OF CRYSTAL STRUCTURE AND MORPHOLOGY OF SRO STRUCTURES PRODUCED AT VARIOUS TEMPERATURES

TURAN İNCE, HANIFI KEBIROGLU, SERDAR ACAR, TANKUT ATES, NIYAZI BULUT, SERHAT KESER, OMER KAYGILI FIRAT UNIVERSITY

[email protected]

As known, zinc oxide (ZnO) is an inorganic compound, a semiconducting material and has been widely used in various technological fields. In this study, copper (Cu) free and Cu-doped ZnO structures were modeled, and the effects of Cu content on the bandgap of the ZnO structure were investigated. It was seen that the bandgap of the ZnO structure decreased gradually with the increasing amount of the dopant of Cu. This study showed that the increasing amount of Cu contributed to the conduction mechanism of the ZnO, and the bandgap value for the ZnO structure could be controlled by Cu content.

253

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

HALF-METALLIC BAND GAP CALCULATIONS ON NEW TI2RHTL COMPOUND

YELIZ GÜLEŞCİ KARTAL FADIME IRMAK BALMUMCU ZIYA MERDAN GAZI UNIVERSITY

[email protected]

Using first principle calculations based on density functional theory (DFT), electronic and magnetic properties of the Ti2RhTl full Heusler compound were saved. All calculations in the study were made with the MedeA program's Vienna Ab-Initio Simulation Package (VASP) code. First, the volume-energy optimization curve was used to obtain the ground state of the compound. From the calculations made, the lattice constant value of the Ti2RhTl Heusler compound, which has a cubic structure, was found to be 6.486 Å. Then the density of states calculations were performed to see electron contributions. Spin- polarized calculation results showed us that majority electrons are metallic and minority electrons are semiconductor. However, since the valence band maxsimum (VBM) and conducting band minimum (CBM) values were obtained as -0.18 and 0.51 eV, the total band gap was 0.69 eV. Ultimately, these detected metallic and semiconductor spin states tell us that a full Heusler compound, Ti2RhTl, is a half-metallic ferromagnet with a magnetic moment of 2.00 µ_B/f.u. Ti2RhTl compound may be a new candidate material that can be used in spintronic applications, which are common in recent years.

254

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Mathematical Physics, Astrophysics and Applications

255

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DISCOVERY OF NEW SINGLE A/F TYPE PULSATING STARS FROM TESS FIELD

ÖZLEM KIRMIZITAŞ, SINAN ÇAVUŞ, FILIZ KAHRAMAN ALİÇAVUŞ ÇANAKKALE ONSEKIZ MART UNIVERSITY

[email protected]

In this study, we present the analysis of some newly discovered A/F type main sequence pulsating stars from the TESS field. We searched for some new unknown variable stars in the TESS field and as a result, many candidates pulsating variable stars were discovered. Some of these variables were found to be a member of A/F type main sequence pulsating stars according to their TESS effective temperature and surface gravity. Here, we introduce the frequency analysis result of these candidate A/F type pulsating variable stars. As a result of this analysis, we confirmed the pulsational variability of the systems and showed that these are A/F type Delta Scuti or Gamma Doradus variables.

This study has been supported by the Scientific and Technological Research Council (TUBITAK) project through 120F330.

256

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Medical Physics and Applications

257

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

DEVELOPMENT OF GAS-PHASE SEPARATION WITH MICRO GAS CHROMATOGRAPHY (µGC)

DUYGU NUHOĞLU (A, B), CIHAT TAŞALTIN (B) A TUBITAK, MARMARA RESEARCH CENTER, MATERIALS INSTITUTE, B DEPARTMENT OF PHYSICS ENGINEERING, ISTANBUL TECHNICAL UNIVERSITY,

[email protected]

Liquid phase separation at the microscale is already being studied with microfluidics, but gas-phase separation is no less attractive and micro gas chromatographs (µGC) are of increasing interest [1]. Among several gas analyzers, portable gas chromatography systems created by the integration of micro electro mechanical systems (MEMs) are promising candidates for rapid and on-site analysis of volatile organic components (VOCs) which serve as biomarkers for certain circumstances. The presence of specific VOCs in exheald human breath (EHB) and variations in their concentration was reported to relate to certain diseases [2]. For example, since lung cancer (LC) is the deadliest cancer type and early-stage diagnosis has a direct influence on the success of treatments, gas chromatography was used to identify 42 VOCs that present LC biomarkers [3]. Moreover, accurate detection of EHB for respiratory diseases such as COVID-19 is particularly important for the control of the spread. In this study, the instrument is of a silicon substrate with an etched column, gas sample loop, un-etched pillar, and sensing interdigitated electrodes (IDTs) were fabricated with conventional lithography procedure. Micro gas chromatographs have 78 mm long column and 2 mm wide. IDTs were placed to detect the gas sample which passes through the column, consist of 2 pair, 11 fingers with 100 µ finger width, 50 µ gap. The gas separation ability of the produced µGC's was tested. At the same time, the ability of the IDTs placed at the end of the column to identify the separated gas was examined.

[1]X. L. YANG, B. ZHAO, F. FENG, H. M. ZHOU, H. YANG, and X. X. LI, “High Performance Micro Gas Chromatography Column Using Mesoporous Silica as Stationary Phase,” Chinese J. Anal. Chem., vol. 47, no. 6, pp. 832–837, Jun. 2019, doi: 10.1016/S1872-2040(19)61164-3. [2]W. Miekisch, J. K. Schubert, and G. F. E. Noeldge-Schomburg, “Diagnostic potential of breath analysis - Focus on volatile organic compounds,” Clinica Chimica Acta, vol. 347, no. 1–2. pp. 25–39, Sep. 2004, doi: 10.1016/j.cccn.2004.04.023. [3]G. Peng et al., “Diagnosing lung cancer in exhaled breath using gold nanoparticles,” Nat. Nanotechnol., vol. 4, no. 10, pp. 669–673, 2009, doi: 10.1038/nnano.2009.235.

258

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF RED BLOOD CELL OXYGENATION IN PAROXYSMAL NOCTURNAL HEMOGLOBINURIA USING RAMAN SPECTROSCOPY

1SEYMA PARLATAN, 2KAAN BATU SOYSAL, 3METBAN MASTANZADE, 3MURAT OZBALAK, 3MUSTAFA YENEREL, 4GUNAY BASAR, 2BURCIN UNLU, 2UGUR PARLATAN, 1ISTINYE UNIVERSITY, VOCATIONAL SCHOOL OF HEALTH CARE SERVICES, 2BOGAZICI UNIVERSITY, DEPARTMENT OF PHYSICS, 3ISTANBUL UNIVERSITY FACULTY OF MEDICINE, DEPARTMENT OF INTERNAL MEDICINE, DIVISION OF HEMATOLOGY, 4ISTANBUL TECHNICAL UNIVERSITY, PHYSICS ENGINEERING DEPARTMENT,

[email protected]

Paroxysmal nocturnal hemoglobinuria (PNH) is a rare blood disorder that is described by hematological symptoms such as the destruction of red blood cells by hemolysis due to the presence of surface proteins like Decay-accelerating factor (DAF) [1, 2]. Here, we demonstrate the effect of chemical changes on the surface of blood samples taken from volunteers on the diagnosis of PNH using Raman spectroscopy. Raman spectroscopy is a vibrational spectroscopic technique that allows the determination of the molecular structure of a sample of interest. Bond vibrational wavenumbers change as much as the molecular vibration wavenumbers due to inelastic scattering between the illuminating photons and the molecules in the sample. Spectroscopic measurement of a single cell requires fixation of the cell for a repeatable measurement. However, many fixation methods bring undesired mechanical effects, which makes the measurements questionable. Optical tweezers are a method that transfers optical momentum on micron- sized objects, including biological particles. Since the length of the elongated axis of the erythrocytes is about 8 µm on average, they can be trapped easily. The combination of these two is called Raman tweezers, and it found many applications in medicine and biology [3, 4]. Our Raman tweezers setup mainly consists of a custom-built microscope that includes a 60X and 1.2 NA microscope objective, a DPSS laser source (CrystaLaser, 785 nm, 100 mW), and a Raman spectrometer (Andor Shamrock with iDUS 401 CCD camera). The total number of patients was 17, while the number of healthy volunteers was 11. We measured the samples on the day that the blood samples were drawn. We trapped five different erythrocytes from each person’s sample and collected the Raman spectra of them 14 times with an exposure time of 30 seconds. We first applied pre- processing to the measurements. Evaluation of the Raman spectra of these cells by band component analysis and machine learning show a significant difference between the two groups. Then analyzed them using a support vector machines (SVM) algorithm after principal component analysis (PCA). The specificity and the sensitivity of the training performed by support vector machines (SVM) analysis were 81.8% and 78.3 %, respectively. We applied a band component analysis to find the band components that 259

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

lead to this classification, and we found the significant bands at 940, 1003, 1247, 1448, 1546, and 1654 cm-1. The bands at 1247 and 1546 cm-1 were also significant in their peak areas found by band component analysis. Photo-oxidation was found to be related to the changes in the intensities of the peaks at 1247 and 1546 cm-1. This change results from prolonged laser exposure, and the peak at 1247 cm-1 contributes to the spectra only in the presence of an oxygenation state. [5]. This study shows that a high-accuracy diagnostic test could also be performed in addition to traditional diagnostic methods such as flow cytometry to diagnose PNH disease.

[1] Patriquin, C.J., et al., "How we treat paroxysmal nocturnal hemoglobinuria: a consensus statement of the Canadian PNH Network and review of the national registry". European journal of hematology, 102(1): p. 36-52 (2019) [2] Brodsky, R.A., "Paroxysmal nocturnal hemoglobinuria." Blood, 124(18): p. 2804- 2811, (2014). [3] Rusciano, G., et al., "Raman tweezers as a diagnostic tool of hemoglobin-related blood disorders". Sensors, 8(12): p. 7818-7832, (2008). [4] Xie, C., M.A. Dinno, and Y.-q. Li, "Near-infrared Raman spectroscopy of single optically trapped biological cells". Optics letters, 27(4): p. 249-251, (2002). [5]B. R. Wood, L. Hammer, L. Davis and D. McNaughton, Journal of biomedical optics, 2005, 10, 014005.

260

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

COMPARISON OF MEASUREMENTS MADE WITH CLASSIC QUALITY CONTROL TECHNIQUES APPLIED IN MODERN LINEAR ACCELERTS AND MEASUREMENTS MADE WITH SNC ARCCHECK DEVICE

TAYLAN YILDIRIM İSTANBUL AYDIN UNIVERSITY

[email protected]

The rapid development of treatment devices and methods in radiotherapy requires the use of more advanced quality control techniques and equipment. SNC ArcCheck device used to test geometric and delivery aspects of linear accelerator is a new generation tool developed for this purpose. Performance characteristics for a Varian Clinac IX Linear Accelerators are here measured by using SNC ArcCheck and also the classical quality control methods. SNC water phantom is used for dose quality evaluation. For gantry rotation and velocity, manual measurements are used. It is used gafchromic film irradiation for isocenter position. Picket fence test irradiation and EPID system analysis are used for MLC motion verifications, All results are compared with those obtained by using SNC ArcCheck. Measurements taken with classical techniques are found to be consistent with those obtained by ArcCheck device. It is seen that ArcCheck device provides appreciable advantages from the points of views of ease of use, time and cost,

THE EFFECT OF BISMUTH SHIELDS USED TO REDUCE PATIENT DOSE IN COMPUTED TOMOGRAPHY ON PATIENT DOSAGE AND IMAGE QUALITY

YUSUF LEVENT ERTOKTAŞ İSTANBUL AYDIN UNIVERSITY

[email protected]

The use of Bismuth(Bi) shields in computerized tomography(CT) scanning being one of the most important radiological imaging methods provides a reduction in the radiation dose to anterior radiosensitive organs. While Bi shields are commonly used in the World, especially in the pediatric CT , their use has not become widespread in Turkey. The effects of use of Bi shields on patient dose and image quality are here investigated. By this aim, CT dose index-volume (CTDI-vol) are measured with and without Bi shielding for different voltage and current values. Dose measurements are made at the mAs values ranging from 50 mAs to 250 mAs for 80, 110 and 130 kVp Voltage values. In image quality measurements, the images obtained for automatically and manually chosen irradiation parameters with different filters by using Cathpan 600 phantom are evaluated and the effects of the position of the Bi Shield on the image quality are examined. Obtained results for CTDI- vol and image quality with and without Bi shielding are compared and analyzed.

261

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Poster Presentations Nuclear Physics

262

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM/TÜRKİYE TH TURKISH PHYSICAL SOCIETY 37 INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM/TURKEY ██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

INVESTIGATION OF EQUIATOMIC PALLADIUM-RUTHENIUM (PD-RU) NANOPARTICLES BY MOLECULAR DYNAMICS SIMULATIONS

S. SENTURK DALGIC1 AND M. YILMAZ2 1DEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, TRAKYA UNIVERSITY, 2DEPARTMENT OF PHYSICS, FACULTY OF SCIENCE, YILDIZ TECHNICAL UNIVERSITY

[email protected]

The numerous advantages of epoxy such as low cost, easy curing and processing, and its high compatibility with additive particles lead it to be used in radiation shielding as well as in many industrial sectors. In this study, the ionizing radiation shielding performance of epoxy has been tried to enhance by incorporating Ag micro particles into the epoxy matrix. The Ag additive weight % has been varied from zero to 30. The experimental study has been carried out by using NaI(Tl) detector, Ba-133 (81 keV and 356 keV), and Cs-137 (662 keV) radioactive point sources. The mass attenuation coefficient, half-value layer, and mean free path of the samples have been determined both experimentally and theoretically by running WinXCom software. High conformity has been observed between the experimental and WinXCom findings. It has been revealed that the addition of Ag microparticles in high concentration increases the radiation shielding capability of epoxy against low-energy photons.

263

TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

PARTICIPANT LIST

NO NAME-SURMANE MAIL UNIVERSITY ABBAS ALPASLAN 1 [email protected] Süleyman Demirel University KOÇER ABBAS KENAN 2 [email protected] İzmir Ekonomi University ÇİFTÇİ ABDURRAHMAN 3 [email protected] Kilis 7 Aralık University ÇETİN ABDÜLHALİK 4 [email protected] Ağrı İbrahim Çeçen University KARABULUT 5 AHMET ATAÇ [email protected] Manisa Celal Bayar University Middle East Technical 6 AHMET AZGIN [email protected] University AHMET KÜRŞAT 7 [email protected] Gazi University BİLGİLİ 8 ALA JEHAD [email protected] Dokuz Eylul University International Islamic 9 ALAMGIR KHAN [email protected] University Islamabad 10 ALİ CAN CANBAY [email protected] Ankara University Erzincan Binali Yıldırım 11 ALİ ERCAN EKİNCİ [email protected] University ALİ HUSSAİN 12 [email protected] Gaziantep University MOHAMMAD ALİ 13 ALİ HUSSİN [email protected] Gaziantep University 14 ALİ KEMAL MAK [email protected] Gebze Technical University Middle East 15 ALİ MURAT GÜLER [email protected] TechnicalUniversity ALİYE DEMET 16 [email protected] İstanbul University DEMİRAĞ 17 ALMİNA DOKUR [email protected] Yıldız Technical University 18 ALP CAN GÖKDELEN [email protected] 19 ALPER ÇETİNEL [email protected] Ege University 20 ARTEMİS SPYROU [email protected] Michigan State University [email protected] - 21 ARZU ÇİLLİ Yıldız Technical University [email protected] Bolu Abant İzzet Baysal 22 ARZU KURT [email protected] University 23 ASLI GENÇASLAN [email protected] Akdeniz University Middle East Technical 24 ASMİN AŞKIN [email protected] University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

25 ASUMAN KAYABAŞI [email protected] Erciyes University 26 ATİLLA EVCİN [email protected] Afyon Kocatepe University AYBEN KARASU 27 [email protected] KTO Karatay University UYSAL 28 AYDIN EROL [email protected] Yıldız Technical University 29 AYLİN FRANKO [email protected] İstanbul University AYLİN YALÇIN 30 [email protected] Üsküdar University SARIBEY 31 AYMİLA AKYILDIZ [email protected] Dokuz Eylül University AYSEL KAYIŞ 32 [email protected] Çukurova University TOPAKSU 33 AYŞE BAT [email protected] Erciyes University AYŞE MİNE 34 [email protected] Adıyaman University KÜÇÜKKAYA 35 AYŞEN ÖZEL [email protected] İstanbul University AYŞENAZ 36 [email protected] İstanbul Atatürk High School ANBARPINAR 37 AYTAC ALİYEVA [email protected] Bakü State University 38 AYTÜL ADIGÜZEL [email protected] İstanbul University 39 BAHRİ SONÜSTÜN [email protected] Yıldız Technical University BAHTİYAR GAZİ 40 [email protected] İstanbul University AKSOY 41 BAKİ AKKUŞ akkus@İstanbul.edu.tr İstanbul University BARIŞ TAMER 42 [email protected] Sakarya University TONGUÇ 43 BARIŞ UZUN [email protected] Yıldız Technical University 44 BARKIN ÖZER [email protected] Yıldız Technical University 45 BATUHAN ÇİL [email protected] İstanbul University 46 BAYRAM DURAK [email protected] Yeditepe University BEDİRHAN 47 [email protected] Yıldız Technical University GÜRAYDIN BERK ALPEREN Middle East Technical 48 [email protected] BENER University 49 BERK DÜZEN [email protected] İstanbul University 50 BERK MORKOÇ [email protected] Bursa Technical University 51 BERKAY ÖZDEŞ [email protected] İstanbul University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

52 BETÜL ÇETİN [email protected] Amasya University BETÜL ŞEYMA 53 [email protected] Hacettepe University YELTEKİN ATAR 54 BİROL ERTUĞRUL [email protected] Giresun University 55 BORA KETENOĞLU [email protected] Ankara University 56 BUĞRA KOCAMAN [email protected] Hacettepe University 57 BUĞRA YILDIZ [email protected] Hacettepe University 58 BURAK AKBIYIK [email protected] Kocaeli University 59 BURAK DAĞLI [email protected] TOBB ETÜ Karamanoğlu MehmetBey 60 BURAK TEKİN [email protected] University 61 BURCU AYGÜN [email protected] Ozyegin University 62 BURCU CEVİZCİ [email protected] Dokuz Eylül University 63 BÜKEM TANÖREN [email protected] Acıbadem University 64 BÜLENT EKİCİ [email protected] Marmara University 65 BÜŞRA AYNACI [email protected] İstanbul Aydın University Muğla Sıtkı Koçman 66 CAHİT KARANFİL [email protected] University 67 CAHİT PERKGÖZ [email protected] Eskişehir Technical University Horia Hulubei National Institute for R&D in Physics 68 CALİN ALEXA [email protected] and Nuclear Engineering (IFIN-HH) Horia Hulubei National Institute for R&D in Physics 69 CALİN UR [email protected] and Nuclear Engineering (IFIN-HH) 70 CAN DAVUT [email protected] University of Manchester CANAN AKSU 71 [email protected] Fırat University CANBAY Bandırma Onyedi Eylül 72 CANER PENSE [email protected] University 73 CANER SARI [email protected] Uludağ University CANKUT KAAN Middle East Technical 74 [email protected] BOLAT University 75 CANSU ÖZKAYA [email protected] Balıkesir University CEM CÜNEYT 76 [email protected] Sinop University ERSANLI TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

77 CEYDA AKIN [email protected] İstanbul University-TEBİP İzmir High Technology 78 CEYHUN EFE KAYAN [email protected] Institute 79 CUMHUR YILDIRIM [email protected] İstanbul Technical University 80 ÇAĞIL KADEROĞLU [email protected] Ankara University 81 ÇAĞLAR KARACA [email protected] Manisa Celal Bayar University 82 ÇİSEM İLAYDA İNCİ [email protected] Istanbul University 83 DAMLA GÜMÜŞ [email protected] İstanbul University 84 DAMLA KOCAMAN [email protected] Yıldız Technical University Ss. Cyril and Methodius 85 DANICA KRSTOVSKA [email protected] University 86 DANİEL SCHULTE [email protected] CERN 87 DENİZ DOĞAN [email protected] Çanakkale 18 Mart University Demokritos Ulusal Bilimsel 88 DENNİS BONATSOS [email protected] Araştırma Merkezi (NCSR) Çanakkale Onsekiz Mart 89 DERYA SÜRGİT [email protected] University DİCLE ZENGİN 90 [email protected] Ege University ÇAMURDAN [email protected], 91 DİDEM KETENOĞLU Ankara University [email protected] 92 DİLARA İÇKECAN [email protected] Marmara University DİLEK DUZGUN 93 [email protected] Istanbul Aydin University ERGUN 94 DİLEK TOKTAMIŞ [email protected] Gaziantep University Nükleer Araştırma ve Nükleer 95 DIMITAR TONEV [email protected] Enerji Enstitüsü DIMITRIOS 96 [email protected] Greece PETRELLIS 97 DOĞA VESKE [email protected] Columbia University 98 DOĞUKAN KIZBAY [email protected] Eskişehir Technical University 99 DUYGU HALİS [email protected] İstanbul University 100 DUYGU NUHOĞLU [email protected] istanbul Technical University 101 DUYGU TARHAN [email protected] İstanbul University-Cerrahpasa 102 EBRU BAŞ [email protected] Ege University Afyonkarahisar Kocatepe 103 EBRU ÖZKARA [email protected] University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

EBRU TANBOĞA 104 [email protected] Bitlis Eren University KORKMAZ Çanakkale Onsekizmart 105 EBRU YALÇIN [email protected] University 106 ECE KUTLU NARİN [email protected] Ankara University 107 EKMEL ÖZBAY [email protected] Bilkent University 108 ELANUR ÇELİK [email protected] İstanbul University 109 ELANUR HUT [email protected] İstanbul University 110 ELBEK KESKİNOGLU [email protected] Ataşehir Final High School 111 ELİF ERMİŞ [email protected] İzmir Tınaztepe University 112 ELİF GÜZELBEY [email protected] Ege University 113 ELİF KEMAH [email protected] Sakarya University ELİF YALVAÇ 114 [email protected] Gazi University ERTUĞRUL Middle East Technical 115 ELSEN AYDİN [email protected] University 116 ELŞEN VELİ [email protected] Kocaeli University 117 EMİR BAYSAZAN [email protected] İstanbul University Erciyes University & The 118 EMRAH TİRAS [email protected] University of Iowa 119 EMRE AVCULAR [email protected] Yeditepe University 120 EMRE ÇELEBİ [email protected] İstanbul Bilgi University 121 EMRE GÜLER [email protected] Hitit Eti University 122 ENDER AKDOĞAN [email protected] Ankara University 123 ERHAN KARA [email protected] İstanbul University 124 ERKCAN ÖZCAN [email protected] Boğaziçi University 125 ESİL KARA [email protected] Ankara University 126 ESRA BALCI [email protected] Gazi University ESRA ERBİLEN 127 [email protected] Gazi University TANRIKULU 128 ESRA KAVAZ [email protected] Atatürk University 129 ESRA KUŞ [email protected] Bursa Uludag University TUBITAK National Metrology 130 ESRA OKUMUŞ [email protected] Institute (TUBITAK UME) 131 ESRA ŞEN [email protected] Süleyman Demirel University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

132 ESRA UYAR [email protected] Gazi University 133 ESRA YÜKSEL [email protected] Yıldız Technical University Aydın Adnan Menderes 134 ETHEM AKTÜRK [email protected] University EVREN GÖRKEM 135 [email protected] Gazi University ÖZDEMİR Osmaniye Korkut Ata 136 EYYUP TEL [email protected] University 137 EZGİ KÜÇÜK [email protected] Ege University 138 F.KAMER KARAKUŞ [email protected] İstanbul University 139 FAHRETTİN GÖKTAŞ [email protected] Fırat University Azerbaycan Devlet Pedagoji 140 FARUK ERDEM [email protected] University 141 FATİH ILGIN [email protected] Yıldız Technical University 142 FATMA PINAR CHOI [email protected] Yıldız Technical University Canakkale Onsekiz mart FİLİZ KAHRAMAN University, Nicolaus 143 [email protected] ALİCAVUS Copernicus Astronomical Center FRANK 144 [email protected] CERN ZIMMERMANN 145 FRANZ J. GIESSIBL [email protected] Regensburg University 146 FULYA BAĞCI [email protected] Ankara University 147 FURKAN TOKAÇ [email protected] Bursa Uludağ University Institiute of Cancer Research, 148 GAIL TER HAAR [email protected] England 149 GAMZE AVCI [email protected] İstanbul University 150 GAMZE HOŞGÖR [email protected] Sakarya University Çanakkale Onsekiz Mart 151 GAMZE KAYA [email protected] University 152 GAMZE KÖŞE [email protected] Afyon Kocatepe University GİZEM DİLARA AÇAN 153 [email protected] İstanbul University YILDIZ GİZEM DURAK Recep Tayyip Erdoğan 154 [email protected] YÜZÜAK University 155 GİZEM ÖZTÜRK [email protected] İstanbul University 156 GORAN DJORDJEVİC rconsta at central.ucv.ro Nis University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Saints Cyril and Methodius GORDANA 157 [email protected] University of Skopje – APOSTOLOVSKA Macedonia GOUTAMİ 158 [email protected] Calcutta University CHATTOPADHYAY 159 GÖKHAN İLHAN [email protected] Marmara University GÖRKEM Muğla Sıtkı Koçman 160 [email protected] OYLUMLUOĞLU University 161 GÖZDE YILMAZ [email protected] Kültür University GÜLDEM ÜRER Sakarya Uygulamalı Bilimler 162 [email protected] ÖZBİLEN University GÜLFEM SÜSOY 163 susoy@İstanbul.edu.tr İstanbul University DOĞAN 164 GÜLPER AKSOY [email protected] Gazi University GÜLSEVİM AYDIN 165 [email protected] MARMARA University ŞAHİN 166 GÜLŞAH BOZKIR [email protected] Milli Savunma University GÜLŞEN 167 [email protected] Dokuz Eylül University KARAKOYUN 168 GÜNEŞ BAŞBAĞ [email protected] FIRAT University GES Technology CEO-VRLab 169 GÜRCAN DEMİRCİ [email protected] Academy 170 H. EUGENE STANLEY [email protected] Boston University 171 HACER DAŞGIN [email protected] Bilkent University 172 HALE TÜRKOĞLU [email protected] Ege University ZONGULDAK BÜLENT 173 HALİL KUYRUKCU [email protected] ECEVİT University 174 HALİL RIDVAN ÖZ [email protected] Iğdır University HALİL UĞUR 175 [email protected] Necmettin Erbakan University TAŞDEMİR İstanbul Technical University 176 HANDAN YILMAZ [email protected] (ITU) 177 HARİS DAPO [email protected] Ankara Univeristesi 178 HASAN DURMUŞ [email protected] İzmir Ekonomi University 179 HASAN KORKMAZ [email protected] Ege University HASAN ÖZGÜR 180 [email protected] Ankara University ÇILDIROĞLU 181 HAŞİM ZAHİD GÜVEN [email protected] Yildiz Technical Üniverstesi HATİCE YILMAZ Ankara University Hızlandırıcı 182 [email protected] ALAN Teknolojileri Enstitüsü TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Isparta University of Applied 183 HAVVA ELİF LAPA [email protected] Sciences 184 HAYATİ TARHAN [email protected] Kastamonu University 185 HİKMET BURSALI [email protected] Roma Sapienza University 186 HİLMİ ÜNLÜ [email protected] İstanbul Technical Üniversitei HİLMİ VOLKAN 187 [email protected] Bilkent University DEMİR 188 HİRA ASİF [email protected] Akdeniz University 189 HÜSEYİN ALİ YALIM [email protected] Afyon Kocatepe University Mimar Sinan Fine Arts 190 HÜSEYİN BAHTİYAR [email protected] University HÜSEYİN KAAN 191 [email protected] Bursa Uludağ University KAPLAN 192 HÜSEYİN TOKTAMIŞ [email protected] Gaziantep University [email protected], 193 HÜSEYİN YILDIZ Ankara University [email protected] 194 IRMAK BALMUMCU [email protected] Gazi University IŞIL PAKİZE ILGAZ Aydın Adnan Menderes 195 [email protected] AYSAN University IVANKA BOZOVIC Vinca Institute of Nuclear 196 [email protected] JELİSAVC Sciences – Serbia 197 İBRAHİM AKGÖZ [email protected] İstanbul University 198 İKBAL YAREN POLAT [email protected] Afyon kocatepe University 199 İLHAN CANDAN [email protected] Dicle University 200 İREM ÇEVİK [email protected] İstanbul University 201 İSMAİL KARAKURT [email protected] Işık University 202 İSMAİL TARHAN [email protected] Çanakkale 18 Mart University 203 JOACHIM MNICH [email protected] CERN 204 KARL JAKOBS karl.jakobs(at)uni-freiburg.de Freiburg University 205 KAZIM YAVUZ EKŞİ ocakir_@_science.ankara.edu.tr İstanbul Technical University Niğde Ömer Halisdemir 206 KEVSER ŞAHİN TIRAŞ [email protected] University KHURAMAN 207 [email protected] Ege University AZİZOVA 208 KLAUS BLAUM [email protected] Max Planck Institute KONSTANTIN 209 [email protected] Patras University ZIOUTAS TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

210 KOZMA ÇUPİ [email protected] EGE University 211 KÜBRA KURT [email protected] Afyon Kocatepe University 212 KÜRŞAT BAYRAM [email protected] Ankara University 213 LATİF ÇİTE [email protected] Gaziantep University LAURA M. 214 [email protected] North Carolina University HOUGHTON Horia Hulubei National Institute for R&D in Physics 215 LAURA RADULESCU [email protected] and Nuclear Engineering (IFIN-HH) 216 LİDYA SUSAM lidyamon@İstanbul.edu.tr İstanbul University 217 LÜTFÜ DEMİR [email protected] Atatürk University 218 M. BURÇİN ÜNLÜ [email protected] Boğaziçi University 219 M.S. DVORNİKOV [email protected] Bakü State University 220 MAHMUT AYDINOL [email protected] Dicle University Supervisory Board Member of 221 MAHMUT DOĞRU [email protected] Higher Education Council MAKBULE Tekirdağ Namık Kemal 222 [email protected] TERLEMEZOĞLU University Horia Hulubei National Institute for R&D in Physics 223 MARIANA PETRİS [email protected] and Nuclear Engineering (IFIN-HH) 224 MAYİL TAGİYEV [email protected] Institute of Physics (ANAS) MEHMET BARAN 225 [email protected] Yıldız Technical University ÖKTEN 226 MEHMET BİBER [email protected] Ardahan University 227 MEHMET ESEN [email protected] çukurova University MEHMET HANİFİ 228 [email protected] Fırat University KEBİROĞLU 229 MEHMET YILMAZ [email protected] Yıldız Technical University MELİK EMİRHAN 230 [email protected] Ankara University TUNALIOĞLU 231 MELİKE BOZKURT [email protected] yıldız Technical University MELTEM BABAYİĞİT 232 [email protected] Hacettepe University CİNALİ 233 MELTEM YAYLA [email protected] Gazi University 234 MERİH SERİN [email protected] Yıldız Technical University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

235 MERVE DOĞAN [email protected] 236 MERVE İZMİRLİ [email protected] İzmir Katip Çelebi University 237 MERVE KOCAMAN [email protected] Hacettepe University 238 MERVE PEHLİVAN [email protected] Gazi University 239 MESUT KAVAL [email protected] Yıldız Technical University 240 METİN ARIK [email protected] Boğaziçi University METİN DAVUT 241 [email protected] Afyon Kocatepe University ERSAN Middle East Technical 242 MEVLÜT ÇELİK [email protected] University, Erciyes University 243 MİHAİ GİRTU [email protected] Ovidius University 244 MİLA PANDUROVİC [email protected] Vinca Nükleer Enstitüsü MUHAMMED HASAN 245 [email protected] Gebze Technical University ASLAN MUHAMMET EMİN 246 [email protected] Uludağ University DEVREN Yıldız Technical University 247 MURAT ÇALIŞKAN [email protected] Fen-Edebiyat Fakültesi Fizik Bölümü Çanakkale Onsekiz Mart 248 MURAT ERTÜRK [email protected] University 249 MURAT KURT [email protected] Ondokuz Mayıs University Recep Tayyip Erdoğan 250 MURAT TOMAKİN [email protected] University MURATCAN 251 [email protected] İstanbul University AYDOĞDU Isparta Uygulamalı Bilimler 252 MUSTAFA ESEN [email protected] University 253 MUSTAFA YILMAZ [email protected] Gaziantep University Çanakkale Onsekiz Mart 254 MÜCAHİT KUZ [email protected] University 255 MÜRSEL ŞEN [email protected] Ege University Horia Hulubei National Institute for R&D in Physics 256 N. VICTOR ZAMFIR [email protected] and Nuclear Engineering (IFIN-HH) - Romania Karamanoglu Mehmet University, Fizik, Turkiye / 257 NADİRE NAYİR [email protected] Pennstate University, 2- dimensional Crystal TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Consortium and Mechanical engineering, USA NAGEHAN KÜBRA 258 [email protected] İstanbul University ZEYTİNCİ NASSER KALANTAR KVI-İleri Radyasyon 259 [email protected] NAYESTANAKİ Teknolojileri Merkezi 260 NAZLICAN BAŞAL [email protected] Süleyman Demirel University 261 NAZRİN BABAYEVA [email protected] Selçuk University 262 NECDA ÇAM [email protected] Dokuz Eylül University Ege University / Fen Bilimleri 263 NEDİME İREM ELEK [email protected] Enstitüsü 264 NEZAKET ALİYEVA [email protected] Baku Devlet University NİHAL 265 [email protected] Selçuk University BÜYÜKÇİZMECİ 266 NİHAT BERKER [email protected] Kadir Has University 267 NİJAT SHUKUROV [email protected] Ankara University 268 NURİYE KALKMAZ [email protected] Afyon Kocatepe University 269 NURSAÇ KURT [email protected] Nişantaşı University 270 OĞUZ DOĞAN [email protected] Necmettin Erbakan University 271 OĞUZ GÜLSEREN [email protected] Bilkent University 272 OĞUZ ŞİT [email protected] Bingöl University 273 OĞUZHAN OĞUZ [email protected] Bilkent University 274 ONUR ARMAN [email protected] İstanbul University 275 ONUR AY [email protected] Namık Kemal University 276 ORHAN BARIŞ ATEŞ [email protected] İstanbul University 277 ORHAN ÇAKIR [email protected] Ankara Üniversity American University of the 278 ORHAN DONMEZ [email protected] Middle East 279 ORHAN UZUN [email protected] Bartın University OSMAN EMRE TOBB Ekonomi ve Teknoloji 280 [email protected] DELİALİOĞLU University 281 OSMAN KAPTAN [email protected] Sakarya University 282 OYA OĞUZ [email protected] Haliç University 283 OZGUR ETİSKEN [email protected] CERN 284 ÖMER YAVAŞ [email protected] Ankara University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

[email protected] - 285 ÖNDER ŞİMŞEK Atatürk University [email protected] 286 ÖZGE ULU [email protected] İstinye University ÖZGÜN MUSTAFA 287 [email protected] Hacettepe University ÖZŞİMŞEK ÖZGÜR TAYLAN 288 [email protected] İstanbul University cerrahpaşa AKDAĞ 289 ÖZLEM BAYAL [email protected] Gazi University Çanakkale Onsekiz Mart 290 ÖZLEM EKİNCİ [email protected] University Çanakkale onsekiz Mart 291 ÖZLEM KIRMIZITAŞ [email protected] University 292 ÖZLEM YILDIRIM [email protected] Altınbaş University 293 ÖZNUR ARSLAN [email protected] İstanbul University 294 ÖZNUR SARIBAŞ [email protected] İstanbul University 295 PELİN OTANSEV [email protected] İstanbul University 296 PERVİN ARIKAN [email protected] Gazi University 297 PINAR KAYA [email protected] Ankara University 298 POLAT NARİN [email protected] Gazi University PSHDAR AHMED 299 [email protected] Firat University IBRAHİM IBRAHİM RADU 300 [email protected] University of Craiova CONSTANTINESCU 301 RAUF JAFAROV [email protected] Baku State University 302 RENA ÇİFTÇİ [email protected] Ege University 303 RİFAT ÇAPAN [email protected] Balıkesir University 304 ROHULLAH ALEMY [email protected] Sakarya University 305 ROTİNDA İŞİK [email protected] İstanbul University 306 RUI JUI CHEN schattopadhyay1@kolamityedu GSI SADETTİN BERKAY Karadeniz Technical 307 [email protected] ŞARLI Üniversity SADİYE ÇETİNKAYA Eskişehir Osmangazi 308 [email protected] ÇOLAK University 309 SADUN KÜÇÜK [email protected] Süleyman Demirel University 310 SALEH SULTANSOY [email protected] TOBB University 311 SAMET ARSLAN [email protected] Yeditepe University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

Bilecik Şeyh Edebali 312 SAMET ÖZGÜR [email protected] University Middle East Technical 313 SARP ALGAN [email protected] University 314 SEDAT AVCI [email protected] Çanakkale 18 Mart University 315 SEDEF YÖRÜKOĞLU [email protected] Ege University SELCUK 316 [email protected] Institute For Basic Science HACIÖMEROĞLU 317 SELDA ÖZAY [email protected] Ondokuz Mayıs University 318 SELEN NUR YILMAZ [email protected] İstanbul University Hatay Mustafa Kemal 319 SELMA ÖZARSLAN [email protected] University 320 SEMA BİLGE OCAK [email protected] Gazi University SEMAHAT ŞERMİN 321 [email protected] Celal Bayar University KIZILIRMAK SEMİHA 322 [email protected] Kırklareli University TOMBULOĞLU 323 SEMRA YÜKSEL [email protected] Ondokuz Mayıs University Middle East Technical 324 SERA İFLAZOĞLU [email protected] University 325 SERAP DALGIÇ [email protected] Trakya University SERAP ŞENTÜRK 326 [email protected] Trakya University DALGIÇ Bilkent University ve Erciyes 327 SERCAN HÜSNÜGİL [email protected] University 328 SERDAR ACAR [email protected] Fırat University 329 SERKANT ALİ ÇETİN [email protected] İstinye University SERPİL YALÇIN 330 [email protected] Fırat University KUZU Hatay Mustafa Kemal 331 SERVET İFLAZOĞLU [email protected] University 332 SEVDA SALTIK [email protected] Dokuz Eylül University SEVDALINA Bulgarian Academy of Science 333 STOYANOVA [email protected] – Bulgaria DIMITROVA 334 SEVİM AÇIKSÖZ [email protected] Boğaziçi University 335 SEVİM BEZEN [email protected] Hacettepe University 336 SEYHAN AYDIN [email protected] Yıldız Technical University 337 SEZAİ ASUBAY [email protected] Dicle University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

338 SHAHIN MAMEDOV [email protected] Baku State University Çanakkale Onsekiz Mart 339 SİBEL SEN [email protected] University Çanakkale Onsekiz Mart 340 SİNAN ÇAVUŞ [email protected] University Bilecik Şeyh Edebali 341 SİNAN TEMEL [email protected] University SİNEM GÜRKAN 342 [email protected] İstanbul Gelişim University AYDIN 343 SULTAN UÇAR - - SURAJIT 344 [email protected] Amity University CHATTOPADHYAY 345 ŞAHİNDE KESGİN [email protected] İstanbul University Kütahya Dumlupınar 346 ŞEYMA BİÇER [email protected] University 347 ŞEYMA DENİZ [email protected] Kocaeli University 348 ŞEYMA ESEN [email protected] İstanbul University zonguldak Bülent Ecevit 349 ŞEYMA NUR PEKEDİZ [email protected] University 350 ŞEYMA PARLATAN [email protected] İstinye University ŞİNASİ 351 [email protected] TED University ELLİALTIOĞLU TAHA BATUHAN 352 [email protected] İstanbul University-Cerrahpaşa İLHAN Bandırma Onyedi Eylül 353 TANER KALAYCI [email protected] University 354 TANER TARIK AYTAŞ [email protected] Akdeniz University TANSEL EFE 355 [email protected] Karataş High School BÜYÜKKASAP 356 TAYLAN YILDIRIM [email protected] İstanbul Aydın University 357 TEKİN İZGİ [email protected] İnönü University 358 TELEM ŞİMŞEK [email protected] Hacettepe University 359 TOBİASZ GALL [email protected] University of Wrocław Institute Of Science Of Bulent 360 TUGBA GÖCEN [email protected] Ecevit University 361 TUGCE HAN [email protected] Gazi University 362 TUĞBA ÇEPNİ [email protected] İstanbul University 363 TUĞBA GÜLTEKİN [email protected] Kocaeli University 364 TUĞÇE AKKURT [email protected] Akdeniz University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

365 TURAN İNCE [email protected] Fırat University TÜRKAN ALKAN 366 [email protected] İzmir Economics University ÖZBAY UALIKHANOVA South Kazakhstan State 367 BAYAN [email protected] Pedagogical University- SAPARBEKOVNA Kazakhstan UBEYDULLAH 368 [email protected] Giresun University AHMED BİRİNCİ 369 ÜLKƏR RÜSTƏM [email protected] Baki State University 370 ÜMİT AKINCI [email protected] Dokuz Eylül University 371 ÜNSAL AKDERE [email protected] Yıldız Technical University Mimar Sinan Güzel Sanatlar 372 V. NEFER ŞENOĞUZ [email protected] University 373 VASİLEİOS ZARİKAS [email protected] Nazarbayev University National and Kapodistrian 374 VASILIKI SKOUFI [email protected] University of Athens – Greece Ss. Cyril and Methodius 375 VESNA GERSHAN [email protected] University 376 VİCTOR CİUPİNA [email protected] Ovidius University Çanakkale Onsekiz Mart 377 VİLDAN BİLGİN [email protected] University 378 VOLKAN KURT [email protected] Yıldız Technical University 379 WOLFGANG QUİNT [email protected] GSI 380 YAREN AYAR [email protected] Balıkesir University YELİZ GÜLEŞCİ 381 [email protected] Gazi University KARTAL 382 YENAL GÖKPEK [email protected] Ege University 383 YİGİT TURGUT [email protected] İstanbul Technical University 384 YUSUF DÜŞKÜN [email protected] Kilis 7 Aralık University YUSUF LEVENT 385 [email protected] İstanbul Aydın University ERTOKTAŞ YUSUF MUHAMMED 386 [email protected] İstanbul University ÖZMEN 387 ZAKİR ÇALDIRAN [email protected] Ardahan University 388 ZEHRA BAŞAKIL [email protected] İstanbul University ZEHRA MERVE Karadeniz Technical 389 [email protected] CİNAN University 390 ZELİHA ÇAKAR [email protected] Balıkesir University TÜRK FİZİK DERNEĞİ 37. ULUSLARARASI FİZİK KONGRESİ, 1-5 EYLÜL 2021, BODRUM / TÜRKİYE TURKISH PHYSICAL SOCIETY 37TH INTERNATIONAL PHYSICS CONGRESS, SEPTEMBER 1-5, 2021, BODRUM / TURKEY ████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████

391 ZEYNEP GÜREL [email protected] Marmara University Çanakkale Onsekiz Mart 392 ZİKRİYE ÖZBEK [email protected] University