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POLARBEAR-2: a new CMB polarization receiver system for the Simons array (Conference Presentation)
Author(s): Masaya Hasegawa; The POLARBEAR COLLABORATION; Peter Ade; Mario Aguilar; Yoshiki Akiba; Aamir Ali; Kam Arnold; Peter Ashton; Carlo Baccigalupi; Darcy Barron; Dominic Beck; Shawn Beckman; Amy Bender; Federico Bianchini; David Boettger; Julian Borrill; Julien Carron; Scott Chapman; Yuji Chinone; Gabriele Coppi; Kevin Crowley; Ari Cukierman; Matt Dobbs; Rolando Dunner; Tucker Elleflot; Josquin Errard; Giulio Fabbian; Stephen Feeney; Chang Feng; George Fuller; Nicholas Galitzki; Andrew Gilbert; Neil Goeckner-Wald; John Groh; Tijmen Haan; Nils Halverson; Takaho Hamada; Masashi Hazumi; Charles Hill; William Holzapfel; Logan Howe; Yuki Inoue; Jennifer Ito; Greg Jaehnig; Andrew Jaffe; Oliver Jeong; Maude Jeune; Daisuke Kaneko; Nobuhiko Katayama; Brian Keating; Reijo Keskitalo; Theodore Kisner; Nicoletta Krachmalnicoff; Akito Kusaka; Adrian Lee; David Leon; Eric Linder; Lindsay Lowry; Alex Madurowicz; Suet Mak; Frederick Matsuda; Tomotake Matsumura; Andrew May; Nathan Miller; Yuto Minami; Joshua Montgomery; Martin Navaroli; Haruki Nishino; Julien Peloton; Anh Pham; Lucio Piccirillo; Richard Plambeck; Davide Poletti; Giuseppe Puglisi; Christopher Raum; Gabriel Rebeiz; Christian Reichardt; Paul Richards; Hayley Roberts; Colin Ross; Kaja Rotermund Rotermund; Yuuko Segawa; Blake Sherwin; Maximiliano Silva-Feaver; Praween Siritanasak; Leo Steinmetz; Radek Stompor; Aritoki Suzuki; Osamu Tajima; Satoru Takakura; Sayuri Takatori; Daiki Tanabe; Raymond Tat; Grant Teply; Takayuki Tomaru; Calvin Tsai Tsai; Clara Verges; Ben Westbrook; Nathan Whitehorn; Alex Zahn; Junichi Suzuki; Takahiro Okamura

Paper Abstract

POLARBEAR-2 is a new receiver system, which will be deployed on the Simons Array telescope platform, for the measurement of Cosmic Microwave Background (CMB) polarization. The science goals with POLARBEAR-2 are to characterize the B-mode signal both at degree and sub-degree angular-scales. The degree-scale polarization data can be used for quantitative studies on inflation, such as the reconstruction of the energy scale of inflation. The sub-degree polarization data is an excellent tracer of large-scale structure in the universe, and will lead to precise constraints on the sum of the neutrino masses. In order to achieve these goals, POLARBEAR-2 employs 7588 polarization-sensitive antenna-coupled transition-edge sensor (TES) bolometers on the focal plane cooled to 0.27K with a three-stage Helium sorption refrigerator, which is ~6 times larger array over the current receiver system. The large TES bolometer array is read-out by an upgraded digital frequency-domain multiplexing system capable of multiplexing 40 bolometers through a single superconducting quantum interference device (SQUID). The first POLARBEAR-2 receiver, POLARBEAR-2A is constructed and the end-to-end testing to evaluate the integrated performance of detector, readout, and optics system is being conducted in the laboratory with various types of test equipments. The POLARBEAR-2A is scheduled to be deployed in 2018 at the Atacama desert in Chile. To further increase measurement sensitivity, two more POLARBEAR-2 type receivers will be deployed soon after the deployment (Simons Array project). The Simons Array will cover four frequency bands at 95GHz, 150GHz, 220GH and 270GHz for better control of the foreground signal. The projected constraints on a tensor-to-scalar ratio (amplitude of inflationary B-mode signal) is σ(r=0.1) = $6.0 \times 10^{-3}$ after foreground removal ($4.0 \times 10^{-3}$ (stat.)), and the sensitivity to the sum of the neutrino masses when combined with DESI spectroscopic galaxy survey data is 40 meV at 1-sigma after foreground removal (19 meV(stat.)). We will present an overview of the design, assembly and status of the laboratory testing of the POLARBEAR-2A receiver system as well as the Simons Array project overview.

Paper Details

Date Published: 10 July 2018
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Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 1070802 (10 July 2018); doi: 10.1117/12.2311576
Show Author Affiliations
Masaya Hasegawa, High Energy Accelerator Research Organization (Japan)
The POLARBEAR COLLABORATION, University of California, Berkeley (United States)
Peter Ade, Cardiff Univ. (United Kingdom)
Mario Aguilar, Univ. de Chile (Chile)
Yoshiki Akiba, The Graduate Univ. for Advanced Studies (Japan)
Aamir Ali, Univ. of California, Berkeley (United States)
Kam Arnold, Univ. of California, San Diego (United States)
Peter Ashton, Univ. of California, Berkeley (United States)
Carlo Baccigalupi, International School for Advanced Studies (Italy)
Darcy Barron, Univ. of California, Berkeley (United States)
Dominic Beck, AstroParticule et Cosmologie (APC), Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu (France)
Obs. de Paris Sorbonne
Shawn Beckman, Univ. of California, Berkeley (United States)
Amy Bender, Argonne National Lab. (United States)
Federico Bianchini, The Univ. of Melbourne (Australia)
David Boettger, Pontificia Univ. Católica de Chile (Chile)
Julian Borrill, Lawrence Berkeley National Lab. (United States)
Julien Carron, Univ. of Sussex (United Kingdom)
Scott Chapman, Dalhousie Univ. (Canada)
Yuji Chinone, Univ. of California, Berkeley (United States)
Gabriele Coppi, The Univ. of Manchester (United Kingdom)
Kevin Crowley, Univ. of California (United States)
Ari Cukierman, Univ. of California, Berkeley (United States)
Matt Dobbs, McGill Univ. (Canada)
Rolando Dunner, Pontificia Univ. Católica de Chile (Chile)
Tucker Elleflot, Univ. of California, San Diego (United States)
Josquin Errard, AstroParticule et Cosmologie (APC), Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu (France)
Obs. de Paris Sorbonne
Giulio Fabbian, Institut d'Astrophysique Spatiale, CNRS, Univ. Paris-Sud, Univ. Paris-Saclay (France)
Stephen Feeney, Flatiron Institute (United States)
Chang Feng, Univ. of Illinois at Urbana-Champaign (United States)
George Fuller, Univ. of California, San Diego (United States)
Nicholas Galitzki, Univ. of California, San Diego (United States)
Andrew Gilbert, McGill Univ. (Canada)
Neil Goeckner-Wald, Univ. of California, Berkeley (United States)
John Groh, Univ. of California, Berkeley (United States)
Tijmen Haan, Lawrence Berkeley National Lab. (United States)
Nils Halverson, Univ. of Colorado Boulder (United States)
Takaho Hamada, Tohoku Univ. (Japan)
Masashi Hazumi, High Energy Accelerator Research Organization (Japan)
Charles Hill, Univ. of California, Berkeley (United States)
William Holzapfel, Univ. of California, Berkeley (United States)
Logan Howe, Univ. of California, San Diego (United States)
Yuki Inoue, Institute of Physics (Taiwan)
Jennifer Ito, Univ. of California, San Diego (United States)
Greg Jaehnig, Univ. of Colorado Boulder (United States)
Andrew Jaffe, Imperial College London (United Kingdom)
Oliver Jeong, Univ. of California, Berkeley (United States)
Maude Jeune, AstroParticule et Cosmologie (APC), Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu (France)
Obs. de Paris Sorbonne
Daisuke Kaneko, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Nobuhiko Katayama, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Brian Keating, Univ. of California, San Diego (United States)
Reijo Keskitalo, Lawrence Berkeley National Lab. (United States)
Theodore Kisner, Lawrence Berkeley National Lab. (United States)
Nicoletta Krachmalnicoff, International School for Advanced Studies (Italy)
Akito Kusaka, Lawrence Berkeley National Lab. (United States)
Adrian Lee, Univ. of California, Berkeley (United States)
David Leon, Univ. of California, San Diego (United States)
Eric Linder, Lawrence Berkeley National Lab. (United States)
Lindsay Lowry, Univ. of California, San Diego (United States)
Alex Madurowicz, Univ. of California, San Diego (United States)
Suet Mak, Imperial College London (United Kingdom)
Frederick Matsuda, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Tomotake Matsumura, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Andrew May, The Univ. of Manchester (United Kingdom)
Nathan Miller, NASA Goddard Space Flight Ctr. (United States)
Yuto Minami, High Energy Accelerator Research Organization (Japan)
Joshua Montgomery, McGill Univ. (Canada)
Martin Navaroli, Univ. of California, San Diego (United States)
Haruki Nishino, High Energy Accelerator Research Organization (Japan)
Julien Peloton, Laboratoire de l'Accélérateur Linéaire, Univ. Paris-Sud, CNRS/IN2P3 (France)
Anh Pham, The Univ. of Melbourne (Australia)
Lucio Piccirillo, The Univ. of Manchester (United Kingdom)
Richard Plambeck, Univ. of California (United States)
Davide Poletti, International School for Advanced Studies (Italy)
Giuseppe Puglisi, International School for Advanced Studies (Italy)
Christopher Raum, Univ. of California, Berkeley (United States)
Gabriel Rebeiz, Univ. of California, San Diego (United States)
Christian Reichardt, The Univ. of Melbourne (Australia)
Paul Richards, Univ. of California (United States)
Hayley Roberts, Univ. of Colorado Boulder (United States)
Colin Ross, Dalhousie Univ. (Canada)
Kaja Rotermund Rotermund, Dalhousie Univ. (Canada)
Yuuko Segawa, The Graduate Univ. for Advanced Studies (Japan)
Blake Sherwin, Univ. of Cambridge (United Kingdom)
Maximiliano Silva-Feaver, Univ. of California, San Diego (United States)
Praween Siritanasak, Univ. of California, San Diego (United States)
Leo Steinmetz, Univ. of California, Berkeley (United States)
Radek Stompor, AstroParticule et Cosmologie (APC), Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu (France)
Aritoki Suzuki, Lawrence Berkeley National Lab. (United States)
Osamu Tajima, Kyoto Univ. (Japan)
Satoru Takakura, High Energy Accelerator Research Organization (Japan)
Sayuri Takatori, The Graduate Univ. for Advanced Studies (Japan)
Daiki Tanabe, The Graduate Univ. for Advanced Studies (Japan)
Raymond Tat, Univ. of California, Berkeley (United States)
Grant Teply, Univ. of California, San Diego (United States)
Takayuki Tomaru, High Energy Accelerator Research Organization (Japan)
Calvin Tsai Tsai, Univ. of California, San Diego (United States)
Clara Verges, AstroParticule et Cosmologie (APC), Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu (France)
Ben Westbrook, Univ. of California, Berkeley (United States)
Nathan Whitehorn, Univ. of California, Los Angeles (United States)
Alex Zahn, Univ. of California, San Diego (United States)
Junichi Suzuki, High Energy Accelerator Research Organization (Japan)
Takahiro Okamura, High Energy Accelerator Research Organization (Japan)


Published in SPIE Proceedings Vol. 10708:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Jonas Zmuidzinas; Jian-Rong Gao, Editor(s)

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