ABSTRACT BOOK – 17Th International Workshop on Low Temperature Detectors
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Analysis and Measurement of Horn Antennas for CMB Experiments
Analysis and Measurement of Horn Antennas for CMB Experiments Ian Mc Auley (M.Sc. B.Sc.) A thesis submitted for the Degree of Doctor of Philosophy Maynooth University Department of Experimental Physics, Maynooth University, National University of Ireland Maynooth, Maynooth, Co. Kildare, Ireland. October 2015 Head of Department Professor J.A. Murphy Research Supervisor Professor J.A. Murphy Abstract In this thesis the author's work on the computational modelling and the experimental measurement of millimetre and sub-millimetre wave horn antennas for Cosmic Microwave Background (CMB) experiments is presented. This computational work particularly concerns the analysis of the multimode channels of the High Frequency Instrument (HFI) of the European Space Agency (ESA) Planck satellite using mode matching techniques to model their farfield beam patterns. To undertake this analysis the existing in-house software was upgraded to address issues associated with the stability of the simulations and to introduce additional functionality through the application of Single Value Decomposition in order to recover the true hybrid eigenfields for complex corrugated waveguide and horn structures. The farfield beam patterns of the two highest frequency channels of HFI (857 GHz and 545 GHz) were computed at a large number of spot frequencies across their operational bands in order to extract the broadband beams. The attributes of the multimode nature of these channels are discussed including the number of propagating modes as a function of frequency. A detailed analysis of the possible effects of manufacturing tolerances of the long corrugated triple horn structures on the farfield beam patterns of the 857 GHz horn antennas is described in the context of the higher than expected sidelobe levels detected in some of the 857 GHz channels during flight. -
Evidence from Covid-19 Pandemic
RISK PERCEPTIONS AND PROTECTIVE BEHAVIORS: EVIDENCE FROM COVID-19 PANDEMIC Maria Polyakova M. Kate Bundorf Duke University Stanford University & NBER & NBER Jill DeMatteis Jialu L. Streeter Westat Stanford University Grant Miller Jonathan Wivagg Stanford University Westat & NBER April, 2021 Working Paper No. 21-022 Risk Perceptions and Protective Behaviors: Evidence from COVID-19 Pandemic.∗ M. Kate Bundorf Jill DeMatteis Grant Miller Maria Polyakova Duke University Westat Stanford University Stanford University and NBER and NBER and NBER Jialu L. Streeter Jonathan Wivagg Stanford University Westat April 28, 2021 Abstract We analyze data from a survey we administered during the COVID-19 pandemic to investigate the relationship between people's subjective risk beliefs and their protective behaviors. We report three main findings. First, on average, people substantially overestimate the absolute level of risk associated with economic activity, but have correct signals about their relative risk. Second, people who believe that they face a higher risk of infection are more likely to report avoiding economic activities. Third, government mandates restricting economic behavior attenuate the relationship between subjective risk beliefs and protective behaviors. ∗Corresponding author: Maria Polyakova ([email protected]). We are grateful to Sarah B¨ogland Aava Farhadi for excellent research assistance. We have made the de-identified survey dataset used in this manuscript available at the following link. We gratefully acknowledge in-kind survey support from Westat. 1 1 Introduction Subjective perceptions of risk guide decision making in nearly all economic domains (Hurd, 2009). While a rich theoretical literature highlights the importance of subjective beliefs for individual ac- tions, fewer studies provide empirical evidence of the link between risk perceptions and behaviors, particularly in non-laboratory settings and in high-income countries (Peltzman, 1975; Delavande, 2014; Delavande and Kohler, 2015; Mueller et al., 2021). -
19 International Workshop on Low Temperature Detectors
19th International Workshop on Low Temperature Detectors Program version 1.24 - British Summer Time 1 Date Time Session Monday 19 July 14:00 - 14:15 Introduction and Welcome 14:15 - 15:15 Oral O1: Devices 1 15:15 - 15:25 Break 15:25 - 16:55 Oral O1: Devices 1 (continued) 16:55 - 17:05 Break 17:05 - 18:00 Poster P1: MKIDs and TESs 1 Tuesday 20 July 14:00 - 15:15 Oral O2: Cold Readout 15:15 - 15:25 Break 15:25 - 16:55 Oral O2: Cold Readout (continued) 16:55 - 17:05 Break 17:05 - 18:30 Poster P2: Readout, Other Devices, Supporting Science 1 20:00 - 21:00 Virtual Tour of NIST Quantum Sensor Group Labs Wednesday 21 July 14:00 - 15:15 Oral O3: Instruments 15:15 - 15:25 Break 15:25 - 16:55 Oral O3: Instruments (continued) 16:55 - 17:05 Break 17:05 - 18:30 Poster P3: Instruments, Astrophysics and Cosmology 1 18:00 - 19:00 Vendor Exhibitor Hour Thursday 22 July 14:00 - 15:15 Oral O4A: Rare Events 1 Oral O4B: Material Analysis, Metrology, Other 15:15 - 15:25 Break 15:25 - 16:55 Oral O4A: Rare Events 1 (continued) Oral O4B: Material Analysis, Metrology, Other (continued) 16:55 - 17:05 Break 17:05 - 18:30 Poster P4: Rare Events, Materials Analysis, Metrology, Other Applications 20:00 - 21:00 Virtual Tour of NIST Cleanoom Monday 26 July 23:00 - 00:15 Oral O5: Devices 2 00:15 - 00:25 Break 00:25 - 01:55 Oral O5: Devices 2 (continued) 01:55 - 02:05 Break 02:05 - 03:30 Poster P5: MMCs, SNSPDs, more TESs Tuesday 27 July 23:00 - 00:15 Oral O6: Warm Readout and Supporting Science 00:15 - 00:25 Break 00:25 - 01:55 Oral O6: Warm Readout and Supporting Science -
Japan's Arnold Schwarzenegger
Japan’s Arnold Schwarzenegger 7/28/08 10:24 PM Japan’s Arnold Schwarzenegger 12/2/2006 Story By Ben Fowlkes Latest News Past Articles About Us IFL MySpace Page “Japan’s Arnold Schwarzenegger” Brings A Whole New Approach To The Fight Game Tokyo Sabres coach and champion pro bodybuilder Ken Yasuda has many famous students in the professional fight game, but when he first met his prize pupil, baseball star Ichiro Suzuki, he admits that he jumped to some conclusions. “I thought he was gay, actually,” Yasuda says, laughing at himself in hindsight. “I saw him at a gym in Los Angeles and he was there with his manager, who was a much older man. I thought this was a sugar daddy relationship for sure.” It wasn’t until Ichiro noticed Yasuda and bowed to him – a sure sign that the man was a compatriot of his – that Yasuda decided to stop and talk. “Ichiro was very frustrated because he had been working with his Japanese team’s trainer for years, but hadn’t seen any results,” Yasuda recalls. “So we talked and I said that I could help him, and I did.” Considering Ichiro’s baseball success, to say Yasuda “helped” him might be a bit of an understatement. But that shouldn’t surprise anyone who knows Yasuda. Born in the ancient Japanese city of Kyoto to a family that boasts 46 generations of samurai warriors, Yasuda has made a big impact everywhere he’s gone. As a young man he dreamed of becoming a pro baseball player, and after an impressive high school career he was drafted, but opted instead to continue his baseball career at USC. -
Estimating the Overdispersion in COVID
Wellcome Open Research 2020, 5:67 Last updated: 13 JUL 2020 RESEARCH ARTICLE Estimating the overdispersion in COVID-19 transmission using outbreak sizes outside China [version 3; peer review: 2 approved] Akira Endo 1,2, Centre for the Mathematical Modelling of Infectious Diseases COVID-19 Working Group, Sam Abbott 1,3, Adam J. Kucharski1,3, Sebastian Funk 1,3 1Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK 2The Alan Turing Institute, London, NW1 2DB, UK 3Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK First published: 09 Apr 2020, 5:67 Open Peer Review v3 https://doi.org/10.12688/wellcomeopenres.15842.1 Second version: 03 Jul 2020, 5:67 https://doi.org/10.12688/wellcomeopenres.15842.2 Reviewer Status Latest published: 10 Jul 2020, 5:67 https://doi.org/10.12688/wellcomeopenres.15842.3 Invited Reviewers 1 2 Abstract Background: A novel coronavirus disease (COVID-19) outbreak has now version 3 spread to a number of countries worldwide. While sustained transmission (revision) report chains of human-to-human transmission suggest high basic reproduction 10 Jul 2020 number R0, variation in the number of secondary transmissions (often characterised by so-called superspreading events) may be large as some countries have observed fewer local transmissions than others. version 2 Methods: We quantified individual-level variation in COVID-19 (revision) report report transmission by applying a mathematical model to observed outbreak sizes 03 Jul 2020 in affected countries. We extracted the number of imported and local cases in the affected countries from the World Health Organization situation report and applied a branching process model where the number of secondary version 1 transmissions was assumed to follow a negative-binomial distribution. -
ELIA STEFANO BATTISTELLI Curriculum Vitae
ELIA STEFANO BATTISTELLI Curriculum Vitae Place: Rome, Italy Date: 03/09/2019 Part I – General Information Full Name ELIA STEFANO BATTISTELLI Date of Birth 29/03/1973 Place of Birth Milan, Italy Citizenship Italian Work Address Physics Dep., Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy Work Phone Number +39 06 49914462 Home Address Via Romolo Gigliozzi, 173, scala B, 00128, Rome, Italy Mobile Phone Number +39 349 6592825 E-mail [email protected] Spoken Languages Italian (native), English (fluent), Spanish (fluent), French (basic) Part II – Education Type Year Institution Notes (Degree, Experience,..) University graduation 1999 Sapienza University (RM, IT) Physics 1996 University of Leeds, UK Erasmus project Post-graduate studies 2000 SIGRAV (CO, IT) Graduate School in Relativity 2000 INAF (Asiago, VI, IT) Scuola Nazionale Astrofisica 2001 INAF/INFN (FC, IT) Scuola Nazionale Astroparticelle 2004 Società Italiana Fisica (CO, IT) International Fermi School 2006 Princeton University (NJ,USA) Summer School on Gal. Cluster PhD 2004 Sapienza University (RM, IT) PhD in Astronomy (XV cycle) Training Courses 2007 University of British Columbia 40-hours course in precision (BC, CA) machining 2009 Programma Nazionale Ricerche 2 weeks training course for the in Antartide (PNRA) Antarctic activity in remote camps Qualification 2013 Ministero della Pubblica National scientific qualification for Istruzione Associate Professor 2012, SSD 02/C1 (ASN-2012) Part III – Appointments IIIA – Academic Appointments Start End Institution Position 11/2018 present Sapienza University of Rome, Physics Associate Professor;Physics Department Department (Rome, Italy) SSD 02/C1-FIS/05 (Astrophysics) 11/2015 11/2018 Sapienza University of Rome, Physics Tenure track assistant professor Department (Rome, Italy) (Ricercatore a Tempo Determinato RTD- B-type). -
Understanding Cosmic Acceleration: Connecting Theory and Observation
Understanding Cosmic Acceleration V(!) ! E Hivon Hiranya Peiris Hubble Fellow/ Enrico Fermi Fellow University of Chicago #OMPOSITIONOFAND+ECosmic HistoryY%VENTS$ UR/ INGTHE%CosmicVOLUTIONOFTHE5 MysteryNIVERSE presentpresent energy energy Y density "7totTOT = 1(k=0)K density DAR RADIATION KENER dark energy YDENSIT DARK G (73%) DARKMATTER Y G ENERGY dark matter DARK MA(23.6%)TTER TIONOFENER WHITEWELLUNDERSTOOD DARKNESSPROPORTIONALTOPOORUNDERSTANDING BARYONS BARbaryonsYONS AC (4.4%) FR !42 !33 !22 !16 !12 Fractional Energy Density 10 s 10 s 10 s 10 s 10 s 1 sec 380 kyr 14 Gyr ~1015 GeV SCALEFACTimeTOR ~1 MeV ~0.2 MeV 4IME TS TS TS TS TS TSEC TKYR T'YR Y Y Planck GUT Y T=100 TeV nucleosynthesis Y IES TION TS EOUT DIAL ORS TIONS G TION TION Z T Energy THESIS symmetry (ILC XA 100) MA EN EE WNOF ESTHESIS V IMOR GENERATEOBSERVABLE IT OR ELER ALTHEOR TIONS EF SIGNATURESINTHE#-" EAKSYMMETR EIONIZA INOFR Y% OMBINA R E6 EAKDO #X ONASYMMETR SIC W '54SYMMETR IMELINEOF EFFWR Y Y EC TUR O NUCLEOSYN ), * +E R 4 PLANCKENER Generation BR TR TURBA UC PH Cosmic Microwave NEUTR OUSTICOSCILLA BAR TIONOFPR ER A AC STR of primordial ELEC non-linear growth of P 44 LIMITOFACC Background Emitted perturbations perturbations: GENER ES carries signature of signature on CMB TUR GENERATIONOFGRAVITYWAVES INITIALDENSITYPERTURBATIONS acoustic#-"%MITT oscillationsED NON LINEARSTR andUCTUR EIMPARTS #!0-!0OBSERVES#-" ANDINITIALDENSITYPERTURBATIONS GROWIMPARTINGFLUCTUATIONS CARIESSIGNATUREOFACOUSTIC SIGNATUREON#-"THROUGH *throughEFFWRITESUPANDGR weakADUATES WHICHSEEDSTRUCTUREFORMATION -
1St Edition of Brown Physics Imagine, 2017-2018
A note from the chair... "Fellow Travelers" Ladd Observatory.......................11 Sci-Toons....................................12 Faculty News.................. 15-16, 23 At-A-Glance................................18 s the current academic year draws to an end, I’m happy to report that the Physics Department has had Newton's Apple Tree................. 23 an exciting and productive year. At this year's Commencement, the department awarded thirty five "Untagling the Fabric of the undergraduate degrees (ScB and AB), twenty two Master’s degrees, and ten Ph.D. degrees. It is always Agratifying for me to congratulate our graduates and meet their families at the graduation ceremony. This Universe," Professor Jim Gates..26 Alumni News............................. 27 year, the University also awarded my colleague, Professor J. Michael Kosterlitz, an honorary degree for his Events this year......................... 28 achievement in the research of low-dimensional phase transitions. Well deserved, Michael! Remembering Charles Elbaum, Our faculty and students continue to generate cutting-edge scholarships. Some of their exciting Professor Emeritus.................... 29 research are highlighted in this magazine and have been published in high impact journals. I encourage you to learn about these and future works by watching the department YouTube channel or reading faculty’s original publications. Because of their excellent work, many of our undergraduate and graduate students have received students prestigious awards both from Brown and externally. As Chair, I feel proud every time I hear good news from our On the cover: PhD student Shayan Lame students, ranging from receiving the NSF Graduate Fellowship to a successful defense of thier senior thesis or a Class of 2018............................. -
Cosmic Microwave Background Activities at IN2P3
Cosmic Microwave Background activities at IN2P3 IN2P3 permanent researchers and research engineers APC: James G. Bartlett (Pr.-UPD – Planck), Pierre Binétruy (Pr.-UPD), Martin Bucher (DR2-CNRS – Planck), Jacques Delabrouille (DR2-CNRS – Planck), Ken Ganga (DR1-CNRS – Planck), Yannick Giraud- Héraud (DR1-CNRS - Planck/QUBIC), Laurent Grandsire (IR-CNRS – QUBIC), Jean-Christophe Hamilton (DR2-CNRS – QUBIC), Jean Kaplan (DR émérite-CNRS – Planck/QUBIC), Maude Le Jeune (IR-CNRS – Planck/POLARBEAR), Guillaume Patanchon (MCF-UPD – Planck), Michel Piat (Pr-UPD - Planck/QUBIC), Damien Prêle (IR-CNRS - QUBIC), Cayetano Santos (IR-CNRS, R&D mm), Radek Stompor (DR1-CNRS – Planck/POLARBEAR), Bartjan van Tent (MCF-UPS – Planck), Fabrice Voisin (IR-CNRS – QUBIC/R&D mm); CSNSM: Laurent Bergé (IR-CNRS – QUBIC/R&D mm), Louis Dumoulin (DR émérite-CNRS – QUBIC/R&D mm), Stefanos Marnieros (CR-CNRS – QUBIC/R&D mm); LAL: François Couchot (DR1- CNRS – Planck/QUBIC), Sophie Henrot-Versillé (CR1-CNRS – Planck/QUBIC), Olivier Perdereau (DR2- CNRS – Planck/QUBIC), Stéphane Plaszczynski (DR2-CNRS – Planck/QUBIC), Matthieu Tristram (CR1- CNRS – Planck/QUBIC); LPSC: Olivier Bourrion (IR1-CNRS – NIKA/NIKA2), Andrea Catalano (CR2-CNRS – Planck/NIKA/NIKA2), Céline Combet (CR2-CNRS – Planck), Juan Francisco Macías-Perez (DR2-CNRS – Planck/NIKA/NIKA2), Frédéric Mayet (MCF-UJF – NIKA/NIKA2), Laurence Perotto (CR1-CNRS – Planck/NIKA/NIKA2), Cécile Renault (CR1-CNRS – Planck), Daniel Santos (DR1-CNRS – Planck) IN2P3 Postdoctoral fellows and PhD students APC: Ranajoy Banerji -
FOR the QUBIC CMB David G. Bennett B.Sc
___________________________________________________ DESIGN AND ANALYSIS OF A QUASI-OPTICAL BEAM COMBINER FOR THE QUBIC CMB INTERFEROMETER ___________________________________________________ David G. Bennett B.Sc. Research Supervisor: Dr. Créidhe O'Sullivan Head of Department: Prof. J.A. Murphy A thesis submitted for the degree of Doctor of Philosophy Sub-mm Optics Research Group Department of Experimental Physics National University of Ireland, Maynooth Co. Kildare Ireland 9th July 2014 Contents 1 The Cosmic Microwave Background 8 1.1 A signal from the early Universe . 8 1.2 A brief history of CMB observations . 9 1.3 Modern Cosmology and the CMB . 12 1.3.1 The Big Bang and the expanding Universe . 12 1.3.2 CMB temperature power spectra . 14 1.3.3 Primary temperature anisotropies . 18 1.3.4 Secondary anisotropies . 19 1.3.5 CMB Polarization . 21 1.3.6 The CMB and Inflation . 27 1.4 Recent CMB experiments . 28 1.5 The CMB and the cosmological parameters . 29 1.6 Conclusions . 33 2 QUBIC: An Experiment designed to measure CMB B-mode polarization 35 2.1 Introducing QUBIC . 35 2.2 Interferometry . 35 2.2.1 Interferometers in astronomy . 35 2.2.2 Radio receivers . 37 2.2.3 Additive Bolometric Interferometry . 39 2.3 The QUBIC experiment . 41 2.3.1 QUBIC specifications . 42 2.4 Phase Shifting and equivalent baselines . 49 2.5 Quasi optical analysis techniques . 55 2.5.1 Methods for the optical modeling of CMB experiments . 55 2.5.2 Geometrical optics . 58 2 2.5.3 Physical optics (PO) . 59 2.5.4 Quasi optics . -
Kinetic Inductance Detectors for the OLIMPO Experiment: In–Flight Operation and Performance
Prepared for submission to JCAP Kinetic Inductance Detectors for the OLIMPO experiment: in–flight operation and performance S. Masi,a;b;1 P. de Bernardis,a;b A. Paiella,a;b F. Piacentini,a;b L. Lamagna,a;b A. Coppolecchia,a;b P. A. R. Ade,c E. S. Battistelli,a;b M. G. Castellano,d I. Colantoni,d;e F. Columbro,a;b G. D’Alessandro,a;b M. De Petris,a;b S. Gordon, f C. Magneville,g P. Mauskopf, f;h G. Pettinari,d G. Pisano,c G. Polenta,i G. Presta,a;b E. Tommasi,i C. Tucker,c V. Vdovin,l;m A. Volpei and D. Yvong aDipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, 00185 Roma, Italy bIstituto Nazionale di Fisica Nucleare, Sezione di Roma, P.le A. Moro 2, 00185 Roma, Italy cSchool of Physics and Astronomy, Cardiff University, Cardiff CF24 3YB, UK dIstituto di Fotonica e Nanotecnologie - CNR, Via Cineto Romano 42, 00156 Roma, Italy ecurrent address: CNR-Nanotech, Institute of Nanotechnology c/o Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, 00185, Roma, Italy f School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA gIRFU, CEA, Université Paris-Saclay, F-91191 Gif sur Yvette, France hDepartment of Physics, Arizona State University, Tempe, AZ 85257, USA iItalian Space Agency, Roma, Italy lInstitute of Applied Physics RAS, State Technical University, Nizhnij Novgorov, Russia mASC Lebedev PI RAS, Moscow, Russia E-mail: [email protected] Abstract. We report on the performance of lumped–elements Kinetic Inductance Detector (KID) arrays for mm and sub–mm wavelengths, operated at 0:3 K during the stratospheric flight of the OLIMPO payload, at an altitude of 37:8 km. -
By Sean B. Carroll
Educator Supplements to the book, THE SERENGETI RULES THE QUEST TO DISCOVER HOW LIFE WORKS AND WHY IT MATTERS BY SEAN B. CARROLL Prepared by Paul Strode Teacher of Biology at Fairview High School Boulder, Colorado 1 TABLE OF CONTENTS I. SUMMARY OF THE SERENGETI RULES 4–8 II. INTRODUCTION TO QUESTION SETS FOR THE SERENGETI RULES 9–11 III. ENGAGEMENT QUESTIONS 12–21 IV. DISCUSSION QUESTIONS 22–30 V. ASSESSMENT QUESTIONS 31–40 VI. COURSE CURRICULUM ALIGNMENTS: AP BIOLOGY, IB BIOLOGY, NGSS 41–53 VII. EXAMPLE ADVANCED BIOLOGY CURRICULUM MAP FOR THE SERENGETI RULES 54–57 2 HOW TEACHERS MIGHT USE THE SERENGETI RULES IN THE CLASSROOM The Serengeti Rules, molecular biologist Sean Carroll takes the reader on a journey through the history of the scientific discovery of many of nature’s most important regulatory mechanisms, from molecules to megafauna. In the spirit of Theodisius Dobzhansky, Carroll teaches us in The Serengeti Rules that nothing in biology makes sense except in the light of regulation. Thus, at the very center of the book is the big, biological idea of homeostasis. Indeed, a key to understand- ing how living systems work and the supporting roles played by evolutionary processes is understanding how a rela- tively stable environment, be it in a cell or in an ecosystem, is maintained and regulated. Throughout the book, Carroll tells the stories of the scientists—and their discoveries—that have given us our current understanding of regulation in nature. But in the stories, Carroll also teaches the reader about the nature of science and scientific reasoning, the impor- tance of modeling, and how scientific discovery is full of determination and success but also frequented with failure.