CROSS SECTIONS of (N,P), (N,Α), (N,2N) REACTIONS on ISOTOPES
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Nuclear Energy Agency Nuclear Data Committee
NUCLEAR ENERGY AGENCY NUCLEAR DATA COMMITTEE SUMMARY RECORD OF THE lWEEFPY-FIRST MEETING (Technical Sessions) CBNM, Gee1 (Belgium) 24th-28th September 1979 Compiled by C. COCEVA (Scientific Secretary) OECD NUCLEAR ENERGY AGENCY 38 Bd. Suchet, 75016 Paris TABLE OF CONTENTS TECHNICAL SESSIONS Participants in meeting 1. Isotopes 2. National Progress Reports 3. Meetings 4. Technical Discussions 5. Topical Meeting on "Progress in Neutron Data of Structural Materials for Fast ~eactors" 6. Neutron and Related Nuclear Data Compilations and Evaluations Appendices 1 Meetings of the IAEA/NDS planned for 1980, 1981 and 1982 2 Progranme of the Topical Meeting on "Progress in Neutron Data of Structural Materials for Fast Reactors " 3 Summary of the general discussion on the works presented at the Topical Meeting TECmTICAL SESSIONS Perticipants in the 21st Meeting were as follows : For Canada : Dr. W.G. Cross Atomic Energy of Canada Ltd. Chalk River For Japan : Dr. K. Tsukada Japan Atomic Energy Research Institute Tokai-blur a For the United States of America : Dr. R.E. Chrien (Chairman) Brookhaven National Laboratory Dr. S.L. Wl~etstone U.S. Department of Energy Dr. 8.T. Motz Los Alamos Scientific Laboratory Dr. F.G. Perey Oak Ridge National Laboratory For the countries of the European Communities and the European Commission acting together : Dr. R. Iiockhoff (Local Secretary) Central Bureau for Nuclear Pleasurements Geel, Belgium Dr. C. Coceva (Scientific Secretary) Comitato Nazionale per 1'Energia Nucleare Bologna, Italy Dr. S. Cierjacks Kernforschungszentrum Karlsruhe Federal Republic of Germany Dr. C. Fort Conunissariat i 1'Energie Atomique Cadaroche, France Dr. A. Michaudon (Vice-chairman) Commissariat 2 1'Energie Atomique Bruysrcs-1.e-ChZtel Dr. -
Metastable Non-Nucleonic States of Nuclear Matter: Phenomenology
Physical Science International Journal 15(2): 1-25, 2017; Article no.PSIJ.34889 ISSN: 2348-0130 Metastable Non-Nucleonic States of Nuclear Matter: Phenomenology Timashev Serge 1,2* 1Karpov Institute of Physical Chemistry, Moscow, Russia. 2National Research Nuclear University MEPhI, Moscow, Russia. Author’s contribution The sole author designed, analyzed and interpreted and prepared the manuscript. Article Information DOI: 10.9734/PSIJ/2017/34889 Editor(s): (1) Prof. Yang-Hui He, Professor of Mathematics, City University London, UK And Chang-Jiang Chair Professor in Physics and Qian-Ren Scholar, Nan Kai University, China & Tutor and Quondam-Socius in Mathematics, Merton College, University of Oxford, UK. (2) Roberto Oscar Aquilano, School of Exact Science, National University of Rosario (UNR),Rosario, Physics Institute (IFIR)(CONICET-UNR), Argentina. Reviewers: (1) Alejandro Gutiérrez-Rodríguez, Universidad Autónoma de Zacatecas, Mexico. (2) Arun Goyal, Delhi University, India. (3) Stanislav Fisenko, Moscow State Linguistic University, Russia. Complete Peer review History: http://www.sciencedomain.org/review-history/20031 Received 17 th June 2017 Accepted 8th July 2017 Original Research Article th Published 13 July 2017 ABSTRACT A hypothesis of the existence of metastable states for nuclear matter with a locally shaken-up nucleonic structure of the nucleus, was proposed earlier. Such states are initiated by inelastic scattering of electrons by nuclei along the path of weak nuclear interaction. The relaxation of such nuclei is also determined by weak interactions. The use of the hypothesis makes it possible to physically interpret a rather large group of experimental data on the initiation of low energy nuclear reactions (LENRs) and the acceleration of radioactive α- and β-decays in a low-temperature plasma. -
Abstract Ultracold Mixtures of Rubidium and Ytterbium
ABSTRACT Title of dissertation: ULTRACOLD MIXTURES OF RUBIDIUM AND YTTERBIUM FOR OPEN QUANTUM SYSTEM ENGINEERING Creston David Herold, Doctor of Philosophy, 2014 Dissertation directed by: Dr. James Porto and Professor Steven Rolston Joint Quantum Institute, University of Maryland Department of Physics and National Institute of Standards and Technology Exquisite experimental control of quantum systems has led to sharp growth of basic quantum research in recent years. Controlling dissipation has been crucial in producing ultracold, trapped atomic samples. Recent theoretical work has suggested dissipation can be a useful tool for quantum state preparation. Controlling not only how a system interacts with a reservoir, but the ability to engineer the reservoir itself would be a powerful platform for open quantum system research. Toward this end, we have constructed an apparatus to study ultracold mixtures of rubidium (Rb) and ytterbium (Yb). We have developed a Rb-blind optical lattice at λzero = 423:018(7) nm, which will enable us to immerse a lattice of Yb atoms (the system) into a Rb BEC (superfluid reservoir). We have produced Bose-Einstein condensates of 170Yb and 174Yb, two of the five bosonic isotopes of Yb, which also has two fermionic isotopes. Flexible optical trapping of Rb and Yb was achieved with a two-color dipole trap of 532 and 1064 nm, and we observed thermalization in ultracold mixtures of Rb and Yb. Using the Rb-blind optical lattice, we measured very small light shifts of 87Rb BECs near the λzero wavelengths adjacent the 6p electronic states, through a coherent series of lattice pulses. The positions of the λzero wavelengths are sensitive to the electric dipole matrix elements between the 5s and 6p states, and we made the first experimental measurement of their strength. -
Detection of Elements at All Three R-Process Peaks in the Metal-Poor Star HD 160617
Published in the Astrophysical Journal A Preprint typeset using LTEX style emulateapj v. 5/2/11 DETECTION OF ELEMENTS AT ALL THREE R-PROCESS PEAKS IN THE METAL-POOR STAR HD 1606171 ,2 ,3 Ian U. Roederer4 and James E. Lawler5 Published in the Astrophysical Journal ABSTRACT We report the first detection of elements at all three r-process peaks in the metal-poor halo star HD 160617. These elements include arsenic and selenium, which have not been detected previously in halo stars, and the elements tellurium, osmium, iridium, and platinum, which have been detected previously. Absorption lines of these elements are found in archive observations made with the Space Telescope Imaging Spectrograph onboard the Hubble Space Telescope. We present up-to-date absolute atomic transition probabilities and complete line component patterns for these elements. Additional archival spectra of this star from several ground-based instruments allow us to derive abundances or upper limits of 45 elements in HD 160617, including 27 elements produced by neutron-capture reactions. The average abundances of the elements at the three r-process peaks are similar to the predicted solar system r-process residuals when scaled to the abundances in the rare earth element domain. This result for arsenic and selenium may be surprising in light of predictions that the production of the lightest r-process elements generally should be decoupled from the heavier r-process elements. Subject headings: atomic data — nuclear reactions, nucleosynthesis, abundances — stars: abundances — stars: individual (HD 160617) — stars: Population II 1. INTRODUCTION in greater abundance during n-capture reactions. The Understanding the origin of the elements is one of the s-process path closely follows the valley of β-stability, major challenges of modern astrophysics. -
The Elements.Pdf
A Periodic Table of the Elements at Los Alamos National Laboratory Los Alamos National Laboratory's Chemistry Division Presents Periodic Table of the Elements A Resource for Elementary, Middle School, and High School Students Click an element for more information: Group** Period 1 18 IA VIIIA 1A 8A 1 2 13 14 15 16 17 2 1 H IIA IIIA IVA VA VIAVIIA He 1.008 2A 3A 4A 5A 6A 7A 4.003 3 4 5 6 7 8 9 10 2 Li Be B C N O F Ne 6.941 9.012 10.81 12.01 14.01 16.00 19.00 20.18 11 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 3 Na Mg IIIB IVB VB VIB VIIB ------- VIII IB IIB Al Si P S Cl Ar 22.99 24.31 3B 4B 5B 6B 7B ------- 1B 2B 26.98 28.09 30.97 32.07 35.45 39.95 ------- 8 ------- 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 39.10 40.08 44.96 47.88 50.94 52.00 54.94 55.85 58.47 58.69 63.55 65.39 69.72 72.59 74.92 78.96 79.90 83.80 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 5 Rb Sr Y Zr NbMo Tc Ru Rh PdAgCd In Sn Sb Te I Xe 85.47 87.62 88.91 91.22 92.91 95.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 6 Cs Ba La* Hf Ta W Re Os Ir Pt AuHg Tl Pb Bi Po At Rn 132.9 137.3 138.9 178.5 180.9 183.9 186.2 190.2 190.2 195.1 197.0 200.5 204.4 207.2 209.0 (210) (210) (222) 87 88 89 104 105 106 107 108 109 110 111 112 114 116 118 7 Fr Ra Ac~RfDb Sg Bh Hs Mt --- --- --- --- --- --- (223) (226) (227) (257) (260) (263) (262) (265) (266) () () () () () () http://pearl1.lanl.gov/periodic/ (1 of 3) [5/17/2001 4:06:20 PM] A Periodic Table of the Elements at Los Alamos National Laboratory 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Lanthanide Series* Ce Pr NdPmSm Eu Gd TbDyHo Er TmYbLu 140.1 140.9 144.2 (147) 150.4 152.0 157.3 158.9 162.5 164.9 167.3 168.9 173.0 175.0 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Actinide Series~ Th Pa U Np Pu AmCmBk Cf Es FmMdNo Lr 232.0 (231) (238) (237) (242) (243) (247) (247) (249) (254) (253) (256) (254) (257) ** Groups are noted by 3 notation conventions. -
Periodic Table of Elements
The origin of the elements – Dr. Ille C. Gebeshuber, www.ille.com – Vienna, March 2007 The origin of the elements Univ.-Ass. Dipl.-Ing. Dr. techn. Ille C. Gebeshuber Institut für Allgemeine Physik Technische Universität Wien Wiedner Hauptstrasse 8-10/134 1040 Wien Tel. +43 1 58801 13436 FAX: +43 1 58801 13499 Internet: http://www.ille.com/ © 2007 © Photographs of the elements: Mag. Jürgen Bauer, http://www.smart-elements.com 1 The origin of the elements – Dr. Ille C. Gebeshuber, www.ille.com – Vienna, March 2007 I. The Periodic table............................................................................................................... 5 Arrangement........................................................................................................................... 5 Periodicity of chemical properties.......................................................................................... 6 Groups and periods............................................................................................................. 6 Periodic trends of groups.................................................................................................... 6 Periodic trends of periods................................................................................................... 7 Examples ................................................................................................................................ 7 Noble gases ....................................................................................................................... -
Fi Oooc U 1999 3 1 / 40
fi OooC PL0002050 ISSN 1425-204X INSTITUTE OF NUCLEAR CHEMISTRY AND TECHNOLOGY SL ¥ u 1999 31/ 40 Please be aware that all of the Missing Pages in this document were originally blank pages EDITORS Wiktor Smuiek, Ph.D. Ewa Godlewska-Para PRINTING Sylwester Wojtas © Copyright by the Institute of Nuclear Chemistry and Technology, Warszawa 2000 All rights reserved CONTENTS GENERAL INFORMATION 9 MANAGEMENT OF THE INSTITUTE 11 MANAGING STAFF OF THE INSTITUTE 11 HEADS OF THE INCT DEPARTMENTS 11 SCIENTIFIC COUNCIL (1999-2003) 11 SCIENTIFIC STAFF 14 PROFESSORS 14 ASSOCIATE PROFESSORS 14 SENIOR SCIENTISTS (Ph.D.) 14 RADIATION CHEMISTRY AND PHYSICS, RADIATION TECHNOLOGIES 17 GENERATION OF RADICAL CATIONS FROM PHENYL, VINYL, AND ALLYL CONTAINING THIOETHERS IN ORGANIC SOLVENTS A. Korzeniowska-Sobczuk, P. Wiśniewski, K. Bobrowski, L. Richter, O. Brede 19 EPR STUDIES OF RADICALS INDUCED BY IONISING RADIATION IN FLUTAMIDE H.B. Ambroż, E. Kornacka, G. Przybytniak 20 THE ROLE OF Cu(I) AND Cu(II) IN DNA DAMAGES H.B. Ambroż, E. Kornacka, G. Przybytniak 21 TEMPERATURE COEFFICIENT OF THE RADIATION YIELD OF THE RADICAL CH3 • CH COf IN CRYSTALLINE ALANINĘ Z.P. Zagórski 22 COMPETITION BETWEEN INTRAMOLECULAR TWO-CENTERED THREE-ELECTRON BONDED (S. • .S)+ AND (S. • .N)+ FORMATION DURING PHOTOOXIDATION OF METHIONINE-CONTAINING PEPTIDES BY THE 4-CARBOXYBENZOPHENONE TRIPLET STATE IN AQUEOUS SOLUTION K. Bobrowski, G.L. Hug, H. Kozubek, B. Marciniak 23 Trp[NH ' +] -Tyr[O ' ] RADICAL TRANSFORMATION IN H-Trp-(Pro)n-Tyr-OH,n = 3-5, SERIES OF PEPTIDES K. Bobrowski, J. Poznański, J. Holcman, K.L. Wierzchowski 25 EPR OF METALS NANOPARTICLES IN MCM-41 MOLECULAR SIEVES J. -
Optical Frequency Measurement and Ground State Cooling of Single Trapped Yb+ Ions
Optical frequency measurement and ground state cooling of single trapped Yb+ ions Peter Blythe March 2004 with updates and corrections August 2005 Submitted in partial ful¯lment of the requirements for the degree of Doctor of Philosophy of the University of London Abstract The thesis describes experiments on single laser-cooled ions of Yb+ in a radiofrequency ion trap. 2 2 The ion is laser-cooled on the 369 nm S1=2! P1=2 electric dipole tran- 2 2 sition, and high resolution spectroscopy of the 467 nm S1=2! F7=2 electric octupole `clock' transition has been performed. The 467 nm transition can be used as an optical frequency standard. To this end, several absolute optical frequency measurements of the F = 171 + 0; mF = 0 ! F = 3; mF = 0 component in Yb have been made with a femtosecond laser frequency comb generator. The comb was referenced to a hydrogen maser which forms part of the clock ensemble used to generate the UTC(NPL) timescale. During the work described in this thesis, the linewidth of the 467 nm probe laser has been narrowed from 4 kHz to 200 Hz, increasing the measurement resolution. The frequency measurements have been supported by a full investigation of the systematic frequency shifts of the octupole transition, including the AC Stark, second-order Zeeman, quadrupole, DC Stark, second-order Doppler and blackbody shifts. Cooling an ion of 172Yb+ to the ground motional state of the ion trap by `EIT cooling' on the 369 nm transition has been investigated, both by numerical simulation and experiment. A new technique for measuring the temperature of a trapped ion without the use of a narrow transition has been developed. -
The Radioactivity of Some Ruthenium and Erbium
THE RADIOACTIVITY OF SOME RUTHENIUM AND ERBIUM ISOTOPES DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By BASANT LAL SHARMA, B. Sc., M. Sc. The Ohio State University 1959 Approved by: " - y n - L . t o J Z ------------------ x a s i s e r ----------^ -------- Department of Physics and Astronomy Acknowledgm ent I take this opportunity to express my sincere appreciation to Professor M. L. Pool for his interest, suggestions, and encouragement throughout this work. Table of Contents Page General Introduction ................................................................................................. 1 Instrumentation ................................................................................................................................ PART I RADIOACTIVE DECAY OF Ru106 AND THE ESTIMATION OF THE THERMAL NEUTRON ACTIVATION CROSS SECTION OF Ru105 Introduction........................................................................................................................................... 8 Experimental D ata............................................................................................. 11 Calculation of the Thermal Neutron Activation Cross Section of R u ^ ^.....................................................................................................23 Results and Discussion............................................................................................... 28 Bibliography ........................................... -
A Two-Orbital Quantum Gas with Tunable Interactions
A two-orbital quantum gas with tunable interactions Moritz Höfer München 2017 A two-orbital quantum gas with tunable interactions Dissertation an der Fakultät für Physik Ludwig-Maximilians-Universität München vorgelegt von Moritz Höfer aus Stade München, den 02. März 2017 Tag der mündlichen Prüfung: 7. April 2017 Erstgutachter: Prof. Immanuel Bloch Zweitgutachter: Prof. Wilhelm Zwerger Weitere Prüfungskommissionsmitglieder: Prof. A. Högele, Prof. M. Punk Zusammenfassung Im letzten Jahrzehnt haben sich Quantengasexperimente als gut kontrollierbare Modell- systeme zur Untersuchung komplexer Fragestellungen aus diversen Bereichen der Physik etabliert. Ultrakalte Quantengase zeichnen sich insbesondere dadurch aus, dass sie einen direkten und experimentell einfach realisierbaren Zugang zu ihrer Wechselwirkung bieten. Das gezielte Einstellen der Wechselwirkungsstärke und die Erforschung der daraus resul- tierenden Aggregatzustände erlaubt es ein tiefes Verständnis der kondensierten Materie zu gewinnen. Insbesondere erdalkaliähnliche Atome wie Ytterbium bieten die Möglich- keit Phänomene der Festkörperphysik zu untersuchen, die durch die Wechselwirkung von Elektronen in verschiedenen Orbitalen oder durch eine größere Rotationssymmetrie des Spins als in gewöhnlichen Spin-1/2 Systemen hervorgerufen werden. Diese Doktorarbeit präsentiert die experimentelle Charakterisierung der Wechselwir- kung ultrakalter, fermionischer Ytterbium-Atome (173Yb) in verschiedenen elektronischen Orbitalen. Dabei wird nachgewiesen, dass sich die Wechselwirkungsstärke -
Quantum Nanophotonics with Ytterbium in Yttrium Orthovanadate
Quantum nanophotonics with ytterbium in yttrium orthovanadate Thesis by Jonathan Miners Kindem In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy CALIFORNIA INSTITUTE OF TECHNOLOGY Pasadena, California 2019 Defended March 14, 2019 ii © 2019 Jonathan Miners Kindem ORCID: 0000-0002-7737-9368 All rights reserved. iii ACKNOWLEDGEMENTS Thank you Andrei for being such a wonderful advisor throughout my time at Cal- tech. Your enthusiasm and excitement for doing science is contagious. Thanks for your patience as I climbed out of various “pits of incompetency" over the years and for having a good sense of humor. Thank you for setting high expectations for our work while giving me freedom in the lab to pursue things I found interesting. It’s been a lot of fun. Thank you to the Faraon group: Tian for getting me up to speed in the lab and teaching me so much over the years. Evan for all the late-night chats in the office and trips to the climbing gym. John for always being willing to answer “quick questions” that were never really quick questions and for your enthusiasm for rare- earths. Jake for keeping the rare-earth ego in check and for fabricating nanobeams. Andrei R. for bringing a fresh set of eyes to the experiment and for the fun times getting the singles measurements working. I’m glad to be leaving the experiment in good hands and look forward to seeing where experiments go in the future. Ioana for always being a source of positivity in lab and for letting me monopolize the fridge over the last few months. -
First Search for $2\Varepsilon $ and $\Varepsilon\Beta^+ $ Decay Of
First search for 2ε and εβ+ decay of 162Er and new limit on 2β− decay of 170Er to the first excited level of 170Yb P. Bellia, R. Bernabeia,b,1, R.S. Boikoc,d, F. Cappellae, V. Caracciolof , R. Cerullia, F.A. Danevichc, A. Incicchittie,g, B.N. Kropivyanskyc, M. Laubensteinf , S. Nisif , D.V. Podac,h, O.G. Polischukc, V.I. Tretyakc aINFN sezione Roma “Tor Vergata”, I-00133 Rome, Italy bDipartimento di Fisica, Universita` di Roma “Tor Vergata”, I-00133 Rome, Italy cInstitute for Nuclear Research, 03028 Kyiv, Ukraine dNational University of Life and Environmental Sciences of Ukraine, 03041 Kyiv, Ukraine eINFN sezione Roma, I-00185 Rome, Italy f INFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi (AQ), Italy gDipartimento di Fisica, Universita` di Roma “La Sapienza”, I-00185 Rome, Italy hCSNSM, Universit´eParis-Sud, CNRS/IN2P3, Universit´eParis-Saclay, 91405 Orsay, France Abstract The first search for double electron capture (2ε) and electron cap- arXiv:1808.01782v1 [nucl-ex] 6 Aug 2018 ture with positron emission (εβ+) of 162Er to the ground state and to several excited levels of 162Dy was realized with 326 g of highly purified erbium oxide. The sample was measured over 1934 h by the ultra-low background HP Ge γ spectrometer GeCris (465 cm3) at the Gran Sasso underground laboratory. No effect was observed, the half- 15 18 life limits were estimated at the level of lim T1/2 ∼ 10 − 10 yr. A 162 + possible resonant 0νKL1 capture in Er to the 2 1782.7 keV ex- 162 17 cited state of Dy is restricted as T1/2 ≥ 5.0 × 10 yr at 90% C.L.