Related papers: Calibration of detector time constant with a therm…

Design and characterization of the POLARBEAR-2b and POLARBEAR-2c cosmic microwave background cryogenic receivers

The POLARBEAR-2/Simons Array Cosmic Microwave Background (CMB) polarization experiment is an upgrade and expansion of the existing POLARBEAR-1 (PB-1) experiment, located in the Atacama desert in Chile. Along with the CMB temperature and…

Instrumentation and Methods for Astrophysics · Physics 2018-06-15 Logan Howe , Calvin Tsai , Lindsay Lowry , Kam Arnold , Gabriele Coppi , John Groh , Xiaoyu Guo , Brian Keating , Adrian Lee , Andrew J. May , Lucio Piccirillo , Nathan Stebor , Grant Teply

The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status

We present on the status of POLARBEAR-2 A (PB2-A) focal plane fabrication. The PB2-A is the first of three telescopes in the Simon Array (SA), which is an array of three cosmic microwave background (CMB) polarization sensitive telescopes…

Instrumentation and Methods for Astrophysics · Physics 2022-10-11 B. Westbrook , P. A. R. Ade , M. Aguilar , Y. Akiba , K. Arnold , C. Baccigalupi , D. Barron , D. Beck , S. Beckman , A. N. Bender , F. Bianchini , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , G. Coppi , K. Crowley , A. Cukierman , T. de , R. Dünner , M. Dobbs , T. Elleflot , J. Errard , G. Fabbian , S. M. Feeney , C. Feng , G. Fuller , N. Galitzki , A. Gilbert , N. Goeckner-Wald , J. Groh , N. W. Halverson , T. Hamada , M. Hasegawa , M. Hazumi , C. A. Hill , W. Holzapfel , L. Howe , Y. Inoue , G. Jaehnig , A. Jaffe , O. Jeong , D. Kaneko , N. Katayama , B. Keating , R. Keskitalo , T. Kisner , N. Krachmalnicoff , A. Kusaka , M. Le , A. T. Lee , D. Leon , E. Linder , L. Lowry , A. Madurowicz , D. Mak , F. Matsuda , A. May , N. J. Miller , Y. Minami , J. Montgomery , M. Navaroli , H. Nishino , J. Peloton , A. Pham , L. Piccirillo , D. Plambeck , D. Poletti , G. Puglisi , C. Raum , G. Rebeiz , C. L. Reichardt , P. L. Richards , H. Roberts , C. Ross , K. M. Rotermund , Y. Segawa , B. Sherwin , M. Silva-Feaver , P. Siritanasak , R. Stompor , A. Suzuki , O. Tajima , S. Takakura , S. Takatori , D. Tanabe , R. Tat , G. P. Teply , A. Tikhomirov , T. Tomaru , C. Tsai , N. Whitehorn , A. Zahn

The POLARBEAR-2 and the Simons Array Experiment

We present an overview of the design and status of the \Pb-2 and the Simons Array experiments. \Pb-2 is a Cosmic Microwave Background polarimetry experiment which aims to characterize the arc-minute angular scale B-mode signal from weak…

Instrumentation and Methods for Astrophysics · Physics 2016-02-17 A. Suzuki , P. Ade , Y. Akiba , C. Aleman , K. Arnold , C. Baccigalupi , B. Barch , D. Barron , A. Bender , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , A. Cukierman , M. Dobbs , A. Ducout , R. Dunner , T. Elleflot , J. Errard , G. Fabbian , S. Feeney , C. Feng , T. Fujino , G. Fuller , A. Gilbert , N. Goeckner-Wald , J. Groh , T. De Haan , G. Hall , N. Halverson , T. Hamada , M. Hasegawa , K. Hattori , M. Hazumi , C. Hill , W. Holzapfel , Y. Hori , L. Howe , Y. Inoue , F. Irie , G. Jaehnig , A. Jaffe , O. Jeong , N. Katayama , J. Kaufman , K. Kazemzadeh , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , A. Kusaka , M. Le Jeune , A. Lee , D. Leon , E. Linder , L. Lowry , F. Matsuda , T. Matsumura , N. Miller , K. Mizukami , J. Montgomery , M. Navaroli , H. Nishino , J. Peloton , D. Poletti , G. Rebeiz , C. Raum , C. Reichardt , P. Richards , C. Ross , K. Rotermund , Y. Segawa , B. Sherwin , I. Shirley , P. Siritanasak , N. Stebor , R. Stompor , J. Suzuki , O. Tajima , S. Takada , S. Takakura , S. Takatori , A. Tikhomirov , T. Tomaru , B. Westbrook , N. Whitehorn , T. Yamashita , A. Zahn , O. Zahn

Studies of Systematic Uncertainties for Simons Observatory: Detector Array Effects

In this proceeding, we present studies of instrumental systematic effects for the Simons Obsevatory (SO) that are associated with the detector system and its interaction with the full SO experimental systems. SO will measure the Cosmic…

Instrumentation and Methods for Astrophysics · Physics 2018-09-10 Kevin T. Crowley , Sara M. Simon , Max Silva-Feaver , Neil Goeckner-Wald , Aamir Ali , Jason Austermann , Michael L. Brown , Yuji Chinone , Ari Cukierman , Bradley Dober , Shannon M. Duff , Jo Dunkley , Josquin Errard , Giulio Fabbian , Patricio A. Gallardo , Shuay-Pwu Patty Ho , Johannes Hubmayr , Brian Keating , Akito Kusaka , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , Giuseppe Puglisi , Mayuri Sathyanarayana Rao , Christian L. Reichardt , Maria Salatino , Praween Siritanasak , Suzanne Staggs , Aritoki Suzuki , Grant Teply , Daniel B. Thomas , Joel N. Ullom , Clara Vergès , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment

We describe the development of an ambient-temperature continuously-rotating half-wave plate (HWP) for study of the Cosmic Microwave Background (CMB) polarization by the POLARBEAR-2 (PB2) experiment. Rapid polarization modulation suppresses…

Instrumentation and Methods for Astrophysics · Physics 2016-07-26 Charles A. Hill , Shawn Beckman , Yuji Chinone , Neil Goeckner-Wald , Masashi Hazumi , Brian Keating , Akito Kusaka , Adrian T. Lee , Frederick Matsuda , Richard Plambeck , Aritoki Suzuki , Satoru Takakura

PROTOCALC, A W-band polarized calibrator for CMB Telescopes: application to Simons Observatory and CLASS

Current- and next-generation Cosmic Microwave Background (CMB) experiments will measure polarization anisotropies with unprecedented sensitivities. The need for high precision in these measurements underscores the importance of gaining a…

Instrumentation and Methods for Astrophysics · Physics 2025-06-02 Gabriele Coppi , Nadia Dachlythra , Federico Nati , Rolando Dünner-Planella , Alexandre E. Adler , Josquin Errard , Nicholas Galitzki , Yunyang Li , Matthew A. Petroff , Sara M. Simon , Ema Tsang King Sang , Amalia Villarrubia Aguilar , Edward J. Wollack , Mario Zannoni

The Simons Observatory: Detector Polarization Angle Calibration using Sparse Wire Grid with Initial Data Sets of the Small Aperture Telescope

Improved measurements of $B$-modes in the cosmic microwave background can be obtained through accurate calibration of the orientation of detector antennas as projected onto the sky. Miscalibration of the detector polarization angle leads to…

Instrumentation and Methods for Astrophysics · Physics 2025-12-23 Hironobu Nakata , Shunsuke Adachi , Kyohei Yamada , Michael Randall , Yutaro Kasai , Kam Arnold , Bryce Bixler , Yuji Chinone , Kevin T. Crowley , Nadia Dachlythra , Samuel Day-Weiss , Nicholas Galitzki , Serena Giardiello , Bradley R. Johnson , Brian Keating , Brian J. Koopman , Akito Kusaka , Jack Lashner , Federico Nati , Lyman Page , Daichi Sasaki , Yoshinori Sueno , Junya Suzuki , Osamu Tajima , Tran Tsan

The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes

For cosmic microwave background (CMB) polarization observations, calibration of detector polarization angles is essential. We have developed a fully remote controlled calibration system with a sparse wire grid that reflects linearly…

Instrumentation and Methods for Astrophysics · Physics 2024-02-21 Masaaki Murata , Hironobu Nakata , Kengo Iijima , Shunsuke Adachi , Yudai Seino , Kenji Kiuchi , Frederick Matsuda , Michael J. Randall , Kam Arnold , Nicholas Galitzki , Bradley R. Johnson , Brian Keating , Akito Kusaka , John B. Lloyd , Joseph Seibert , Maximiliano Silva-Feaver , Osamu Tajima , Tomoki Terasaki , Kyohei Yamada

Calibration System with Cryogenically-Cooled Loads for CMB Polarization Detectors

We present a novel system to calibrate millimeter-wave polarimeters for CMB polarization measurements. This technique is an extension of the conventional metal mirror rotation approach, however it employs cryogenically-cooled blackbody…

Instrumentation and Methods for Astrophysics · Physics 2012-05-01 M. Hasegawa , O. Tajima , Y. Chinone , M. Hazumi , K. Ishidoshiro , M. Nagai

POLARBEAR-2: an instrument for CMB polarization measurements

POLARBEAR-2 (PB-2) is a cosmic microwave background (CMB) polarization experiment that will be located in the Atacama highland in Chile at an altitude of 5200 m. Its science goals are to measure the CMB polarization signals originating from…

Instrumentation and Methods for Astrophysics · Physics 2017-01-18 Y. Inoue , P. Ade , Y. Akiba , C. Aleman , K. Arnold , C. Baccigalupi , B. Barch , D. Barron , A. Bender , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , A. Cukierman , T. de Haan , M. A. Dobbs , A. Ducout , R. Dunner , T. Elleflot , J. Errard , G. Fabbian , S. Feeney , C. Feng , G. Fuller , A. J. Gilbert , N. Goeckner-Wald , J. Groh , G. Hall , N. Halverson , T. Hamada , M. Hasegawa , K. Hattori , M. Hazumi , C. Hill , W. L. Holzapfel , Y. Hori , L. Howe , F. Irie , G. Jaehnig , A. Jaffe , O. Jeongh , N. Katayama , J. P. Kaufman , K. Kazemzadeh , B. G. Keating , Z. Kermish , R. Keskital , T. Kisner , A. Kusaka , M. Le Jeune , A. T. Lee , D. Leon , E. V. Linder , L. Lowry , F. Matsuda , T. Matsumura , N. Miller , K. Mizukami , J. Montgomery , M. Navaroli , H. Nishino , H. Paar , J. Peloton , D. Poletti , G. Puglisi , C. R. Raum , G. M. Rebeiz , C. L. Reichardt , P. L. Richards , C. Ross , K. M. Rotermund , Y. Segaw , B. D. Sherwin , I. Shirley , P. Siritanasak , N. Stebor , R. Stompor A. Suzuki , O. Tajima , S. Takada , S. Takatori , G. P. Teply , A. Tikhomirol , T. Tomaru , N. Whitehorn , A. Zahn , O. Zahn

Modeling atmospheric emission for CMB ground-based observations

Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce…

Instrumentation and Methods for Astrophysics · Physics 2015-11-13 J. Errard , P. A. R. Ade , Y. Akiba , K. Arnold , M. Atlas , C. Baccigalupi , D. Barron , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , A. Cukierman , J. Delabrouille , M. Dobbs , A. Ducout , T. Elleflot , G. Fabbian , C. Feng , S. Feeney , A. Gilbert , N. Goeckner-Wald , N. W. Halverson , M. Hasegawa , K. Hattori , M. Hazumi , C. Hill , W. L. Holzapfel , Y. Hori , Y. Inoue , G. C. Jaehnig , A. H. Jaffe , O. Jeong , N. Katayama , J. Kaufman , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , M. Le Jeune , A. T. Lee , E. M. Leitch , D. Leon , E. Linder , F. Matsuda , T. Matsumura , N. J. Miller , M. J. Myers , M. Navaroli , H. Nishino , T. Okamura , H. Paar , J. Peloton , D. Poletti , G. Puglisi , G. Rebeiz , C. L. Reichardt , P. L. Richards , C. Ross , K. M. Rotermund , D. E. Schenck , B. D. Sherwin , P. Siritanasak , G. Smecher , N. Stebor , B. Steinbach , R. Stompor , A. Suzuki , O. Tajima , S. Takakura , A. Tikhomirov , T. Tomaru , N. Whitehorn , B. Wilson , A. Yadav , O. Zahn

Calibration Measurements of the BICEP3 and BICEP Array CMB Polarimeters from 2017 to 2024

The BICEP3 and BICEP Array polarimeters are small-aperture refracting telescopes located at the South Pole designed to measure primordial gravitational wave signatures in the Cosmic Microwave Background (CMB) polarization, predicted by…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-26 Christos Giannakopoulos , Clara Vergès , P. A. R. Ade , Zeeshan Ahmed , Mandana Amiri , Denis Barkats , Ritoban Basu Thakur , Colin A. Bischoff , Dominic Beck , James J. Bock , Hans Boenish , Victor Buza , James R. Cheshire , Jake Connors , James Cornelison , Michael Crumrine , Ari Jozef Cukierman , Edward Denison , Marion Dierickx , Lionel Duband , Miranda Eiben , Brodi D. Elwood , Sofia Fatigoni , Jeff P. Filippini , Antonio Fortes , Min Gao , Neil Goeckner-Wald , David C. Goldfinger , James A. Grayson , Paul K. Grimes , Grantland Hall , George Halal , Mark Halpern , Emma Hand , Sam A. Harrison , Shawn Henderson , Johannes Hubmayr , Howard Hui , Kent D. Irwin , Jae Hwan Kang , Kirit S. Karkare , Sinan Kefeli , J. M. Kovac , Chao-Lin Kuo , King Lau , Margaret Lautzenhiser , Amber Lennox , Tongtian Liu , Koko G. Megerian , Oliver Miller , Lorenzo Minutolo , Lorenzo Moncelsi , Yuka Nakato , H. T. Nguyen , Roger O'brient , Anika Patel , Matthew A. Petroff , Anna R. Polish , Nathan Precup , Thomas Prouve , Clement Pryke , Carl D. Reintsema , Thibault Romand , Maria Salatino , Alessandro Schillaci , Benjamin Schmitt , Baibhav Singari , Ahmed Soliman , Tyler St Germaine , Aaron Steiger , Bryan Steinbach , Rashmi Sudiwala , Keith L. Thompson , Calvin Tsai , Carole Tucker , Anthony D. Turner , Abigail G. Vieregg , Albert Wandui , Alexis C. Weber , Justin Willmert , Wai Ling K. Wu , Hung-I Yang , Cyndia Yu , Lingzhen Zeng , Cheng Zhang , Silvia Zhang

The Simons Observatory: Large Diameter and Large Load-Capacity Superconducting Magnetic Bearing for a Millimeter-Wave Polarization Modulator

We present the design methodology and characterization of a superconducting magnetic bearing (SMB) system for the polarization modulator in the SAT-LF, one of the small aperture telescopes (SATs) in the Simons Observatory (SO) that is…

Instrumentation and Methods for Astrophysics · Physics 2025-03-31 Daichi Sasaki , Junna Sugiyama , Kyohei Yamada , Bryce Bixler , Yuki Sakurai , Kam Arnold , Bradley R. Johnson , Akito Kusaka

The new generation CMB B-mode polarization experiment: POLARBEAR

We describe the Cosmic Microwave Background (CMB) polarization experiment called Polarbear. This experiment will use the dedicated Huan Tran Telescope equipped with a powerful 1,200-bolometer array receiver to map the CMB polarization with…

Instrumentation and Methods for Astrophysics · Physics 2011-04-25 The Polarbear Collaboration , J. Errard , P. A. R. Ade , A. Anthony , K. Arnold , F. Aubin , D. Boettger , J. Borrill , C. Cantalupo , M. A. Dobbs , D. Flanigan , A. Ghribi , N. Halverson , M. Hazumi , W. L. Holzapfel , J. Howard , P. Hyland , A. Jaffe , B. Keating , T. Kisner , Z. Kermish , A. T. Lee , E. Linder , M. Lungu , T. Matsumura , N. Miller , X. Meng , M. Myers , H. Nishino , R. O'Brient , D. O'Dea , C. Reichardt , I. Schanning , A. Shimizu , C. Shimmin , M. Shimon , H. Spieler , B. Steinbach , R. Stompor , A. Suzuki , T. Tomaru , H. T. Tran , C. Tucker , E. Quealy , P. L. Richards , O. Zahn

Studies of Systematic Uncertainties for Simons Observatory: Polarization Modulator Related Effects

The Simons Observatory (SO) will observe the temperature and polarization anisotropies of the cosmic microwave background (CMB) over a wide range of frequencies (27 to 270 GHz) and angular scales by using both small (0.5 m) and large (6 m)…

Instrumentation and Methods for Astrophysics · Physics 2018-08-23 Maria Salatino , Jacob Lashner , Martina Gerbino , Sara M. Simon , Joy Didier , Aamir Ali , Peter C. Ashton , Sean Bryan , Yuji Chinone , Kevin Coughlin , Kevin T. Crowley , Giulio Fabbian , Nicholas Galitzki , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Charles A. Hill , Brian Keating , Akito Kusaka , Adrian T. Lee , Jeffrey McMahon , Amber D. Miller , Giuseppe Puglisi , Christian L. Reichardt , Grant Teply , Zhilei Xu , Ningfeng Zhu

Polarization Calibration of the BICEP3 CMB polarimeter at the South Pole

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB).…

Instrumentation and Methods for Astrophysics · Physics 2020-12-14 J. Cornelison , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. R. Cheshire , J. Connors , M. Crumrine , A. Cukierman , E. Denison , M. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , S. Fliescher , N. Goeckner-Wald , D. C. Goldfinger , J. A. Grayson , P. Grimes , G. Hall , M. Halpern , S. A. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , N. Precup , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , S. Richter , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , A. Soliman , T. St. Germaine , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umiltà , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , E. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

The Simons Observatory: Instrument Overview

The Simons Observatory (SO) will make precise temperature and polarization measurements of the cosmic microwave background (CMB) using a set of telescopes which will cover angular scales between 1 arcminute and tens of degrees, contain over…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Nicholas Galitzki , Aamir Ali , Kam S. Arnold , Peter C. Ashton , Jason E. Austermann , Carlo Baccigalupi , Taylor Baildon , Darcy Barron , James A. Beall , Shawn Beckman , Sarah Marie M. Bruno , Sean Bryan , Paolo G. Calisse , Grace E. Chesmore , Yuji Chinone , Steve K. Choi , Gabriele Coppi , Kevin D. Crowley , Kevin T. Crowley , Ari Cukierman , Mark J. Devlin , Simon Dicker , Bradley Dober , Shannon M. Duff , Jo Dunkley , Giulio Fabbian , Patricio A. Gallardo , Martina Gerbino , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Erin E. Healy , Shawn Henderson , Charles A. Hill , Gene C. Hilton , Shuay-Pwu Patty Ho , Logan A. Howe , Johannes Hubmayr , Oliver Jeong , Brian Keating , Brian J. Koopman , Kenji Kuichi , Akito Kusaka , Jacob Lashner , Adrian T. Lee , Yaqiong Li , Michele Limon , Marius Lungu , Frederick Matsuda , Philip D. Mauskopf , Andrew J. May , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , John L. Orlowski-Scherer , Stephen C. Parshley , Lucio Piccirillo , Mayuri Sathyanarayana Rao , Christopher Raum , Maria Salatino , Joseph S. Seibert , Carlos Sierra , Max Silva-Feaver , Sara M. Simon , Suzanne T. Staggs , Jason R. Stevens , Aritoki Suzuki , Grant Teply , Robert Thornton , Calvin Tsai , Joel N. Ullom , Eve M. Vavagiakis , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

Simulating Calibration and Beam Systematics for a Future CMB Space Mission with the TOAST Package

We address in this work the instrumental systematic errors that can potentially affect the forthcoming and future Cosmic Microwave Background experiments aimed at observing its polarized emission. In particular, we focus on the systematics…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-14 Giuseppe Puglisi , Reijo Keskitalo , Ted Kisner , Julian D. Borrill

Self-Calibration of CMB Polarization Experiments

Precision measurements of the polarization of the cosmic microwave background (CMB) radiation, especially experiments seeking to detect the odd-parity "B-modes", have far-reaching implications for cosmology. To detect the B-modes generated…

Cosmology and Nongalactic Astrophysics · Physics 2012-12-27 Brian Keating , Meir Shimon , Amit Yadav

A large-diameter cryogenic rotation stage for half-wave plate polarization modulation on the POLARBEAR-2 experiment

We describe the design of a cryogenic rotation stage (CRS) for use with the cryogenic half-wave plate (CHWP) polarization modulator on the POLARBEAR-2b and POLARBEAR-2c (PB2b/c) cosmic microwave background (CMB) experiments, the second and…

Instrumentation and Methods for Astrophysics · Physics 2018-05-29 Charles A. Hill , Akito Kusaka , Paul Barton , Bryce Bixler , Alex G. Droster , Mael Flament , Suhas Ganjam , Arian Jadbabaie , Oliver Jeong , Adrian T. Lee , Alex Madurowicz , Fred T. Matsuda , Tomotake Matsumura , Adam Rutkowski , Yuki Sakurai , Danielle R. Sponseller , Aritoki Suzuki , Raymond Tat