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Proceedings Paper

Electrical characterization and tuning of the integrated POLARBEAR-2a focal plane and readout (Conference Presentation)
Author(s): Darcy Barron; Kam Arnold; Tucker Elleflot; John Groh; Daisuke Kaneko; Nobuhiko Katayama; Adrian Lee; Lindsay Lowry; Haruki Nishino; Aritoki Suzuki; Sayuri Takatori; P. Ade; Y. Akiba; A. Ali; M. Aguilar; A. Anderson; P. Ashton; J. Avva; D. Beck; C. Baccigalupi; S. Beckman; A. Bender; F. Bianchini; D. Boettger; J. Borrill; J. Carron; S. Chapman; Y. Chinone; G. Coppi; K. Crowley; A. Cukierman; T. de Haan; M. Dobbs; R. Dunner; J. Errard; G. Fabbian; S. Feeney; C. Feng; G. Fuller; N. Galitzki; A. Gilbert; N. Goeckner-Wald; T. Hamada; N. Halverson; M. Hasegawa; M. Hazumi; C. Hill; W. Holzapfel; L. Howe; Y. Inoue; J. Ito; G. Jaehnig; O. Jeong; B. Keating; R. Keskitalo; T. Kisner; N. Krachmalnicoff; A. Kusaka; M. Le Jeune; D. Leon; E. Linder; A. Lowitz; A. Madurowicz; D. Mak; F. Matsuda; T. Matsumura; A. May; N. Miller; Y. Minami; J. Montgomery; T. Natoli; M. Navroli; J. Peloton; A. Pham; L. Piccirillo; D. Plambeck; D. Poletti; G. Puglisi; C. Raum; G. Rebeiz; C. Reichardt; P. Richards; H. Roberts; C. Ross; K. Rotermund; Max Silva Feaver; Y. Segawa; B. Sherwin; P. Siritanasak; L. Steinmetz; R. Stompor; O. Tajima; S. Takakura; D. Tanabe; R. Tat; G. Teply; A. Tikhomirov; T. Tomaru; C. Tsai; C. Verges; B. Westbrook; N. Whitehorn; A. Zahn
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Paper Abstract

POLARBEAR is a cosmic microwave background (CMB) polarization experiment located in the Atacama desert in Chile. The science goals of the POLARBEAR project are to do a deep search for CMB B-mode polarization created by inflationary gravitational waves, as well as characterize the CMB B-mode signal from gravitational lensing. POLARBEAR-1 started observations in 2012, and the POLARBEAR team has published a series of results from its first two seasons of observations, including the first measurement of a non-zero B-mode polarization angular power spectrum, measured at sub-degree scales where the dominant signal is gravitational lensing of the CMB. The Simons Array expands POLARBEAR to include an additional two telescopes with next-generation POLARBEAR-2 multi-chroic receivers, observing at 95, 150, 220, and 270 GHz. The POLARBEAR-2A focal plane has 7,588 transition-edge sensor bolometers, read out with frequency-division multiplexing, with 40 frequency channels within the readout bandwidth of 1.5 to 4.5 MHz. The frequency channels are defined by a low-loss lithographed aluminum spiral inductor and interdigitated capacitor in series with each bolometer, creating a resonant frequency for each channel's unique voltage bias and current readout. Characterization of the readout includes measuring resonant peak locations and heights and fitting to a circuit model both above and below the bolometer superconducting transition temperature. This information is used determine the optimal detector bias frequencies and characterize stray impedances which may affect bolometer operation and stability. The detector electrical characterization includes measurements of the transition properties by sweeping in temperature and in voltage bias, measurements of the bolometer saturation power, as well as measuring and removing any biases introduced by the readout circuit. We present results from the characterization, tuning, and operation of the fully integrated focal plane and readout for the first POLARBEAR-2 receiver, POLARBEAR-2A, during its pre-deployment integration run.

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, 1070808 (10 July 2018); doi: 10.1117/12.2311502
Show Author Affiliations
Darcy Barron, Univ. of California, Berkeley (United States)
Kam Arnold, Univ. of California, San Diego (United States)
Tucker Elleflot, Univ. of California, San Diego (United States)
John Groh, Univ. of California, Berkeley (United States)
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)
Adrian Lee, Univ. of California, Berkeley (United States)
Lindsay Lowry, Univ. of California, San Diego (United States)
Haruki Nishino, High Energy Accelerator Research Organization (Japan)
Aritoki Suzuki, Lawrence Berkeley National Lab. (United States)
Sayuri Takatori, High Energy Accelerator Research Organization (Japan)
P. Ade, Cardiff Univ. (United Kingdom)
Y. Akiba, High Energy Accelerator Research Organization (Japan)
A. Ali, Univ. of California, Berkeley (United States)
M. Aguilar, Univ. de Chile (Chile)
A. Anderson, Fermilba (United States)
P. Ashton, Univ. of California, Berkeley (United States)
J. Avva, Univ. of California (United States)
D. Beck, APC (France)
C. Baccigalupi, International School for Advanced Studies (Italy)
S. Beckman, Univ. of California, Berkeley (United States)
A. Bender, Argonne National Lab. (United States)
F. Bianchini, The Univ. of Melbourne (Australia)
D. Boettger, Pontificia Univ. Católica de Chile (Chile)
J. Borrill, Lawrence Berkeley National Lab. (United States)
J. Carron, Univ. of Sussex (United Kingdom)
S. Chapman, Dalhousie Univ. (Canada)
Y. Chinone, Univ. of California, Berkeley (United States)
G. Coppi, The Univ. of Manchester (United Kingdom)
K. Crowley, Univ. of California (United States)
A. Cukierman, Univ. of California, Berkeley (United States)
T. de Haan, Lawrence Berkeley National Lab. (United States)
M. Dobbs, McGill Univ. (United States)
R. Dunner, Pontificia Univ. Católica de Chile (Chile)
J. Errard, APC (France)
G. Fabbian, SISSA (Italy)
S. Feeney, Flatiron Institute (United States)
C. Feng, Univ. of Illinois at Urbana-Champaign (United States)
G. Fuller, Univ. of California, San Diego (United States)
N. Galitzki, Univ. of California, San Diego (United States)
A. Gilbert, McGill Univ. (Canada)
N. Goeckner-Wald, Univ. of California, Berkeley (United States)
T. Hamada, Tohoku Univ. (Japan)
N. Halverson, Univ. of Colorado Boulder (United States)
M. Hasegawa, High Energy Accelerator Research Organization (Japan)
M. Hazumi, High Energy Accelerator Research Organization (Japan)
C. Hill, Univ. of California, Berkeley (United States)
W. Holzapfel, Univ. of California, Berkeley (United States)
L. Howe, Univ. of California (United States)
Y. Inoue, High Energy Accelerator Research Organization (Japan)
J. Ito, Univ. of California (United States)
G. Jaehnig, Univ. of Colorado (United States)
O. Jeong, Univ. of California, Berkeley (United States)
B. Keating, Univ. of California, San Diego (United States)
R. Keskitalo, Lawrence Berkeley National Lab. (United States)
T. Kisner, Lawrence Berkeley National Lab. (United States)
N. Krachmalnicoff, International School for Advanced Studies (Italy)
A. Kusaka, Lawrence Berkeley National Lab. (United States)
M. Le Jeune, APC (France)
D. Leon, Univ. of California, San Diego (United States)
E. Linder, Lawrence Berkeley National Lab. (United States)
A. Lowitz, The Univ. of Chicago (United States)
A. Madurowicz, Univ. of California, San Diego (United States)
D. Mak, Imperial College London (United Kingdom)
F. Matsuda, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
T. Matsumura, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
A. May, The Univ. of Manchester (United Kingdom)
N. Miller, NASA Goddard Space Flight Ctr. (United States)
Y. Minami, High Energy Accelerator Research Organization (Japan)
J. Montgomery, McGill Univ. (Canada)
T. Natoli, Dunlap Institute (Canada)
M. Navroli, Univ. of California, San Diego (United States)
J. Peloton, CNRS/IN2P3 (France)
A. Pham, The Univ. of Melbourne (Australia)
L. Piccirillo, The Univ. of Manchester (United Kingdom)
D. Plambeck, Univ. of California (United States)
D. Poletti, International School for Advanced Studies (Italy)
G. Puglisi, Stanford Univ. (United States)
C. Raum, Univ. of California, Berkeley (United States)
G. Rebeiz, Univ. of California, San Diego (United States)
C. Reichardt, The Univ. of Melbourne (Australia)
P. Richards, Univ. of California (United States)
H. Roberts, Univ. of Colorado Boulder (United States)
C. Ross, Dalhousie Univ. (Canada)
K. Rotermund, Dalhousie Univ. (Canada)
Max Silva Feaver, Univ. of California, San Diego (United States)
Y. Segawa, High Energy Accelerator Research Organization (Japan)
B. Sherwin, Cambridge Univ. (United Kingdom)
P. Siritanasak, Univ. of California (United States)
L. Steinmetz, Univ. of California, Berkeley (United States)
R. Stompor, APC (France)
O. Tajima, Kyoto Univ. (Japan)
S. Takakura, High Energy Accelerator Research Organization (Japan)
D. Tanabe, High Energy Accelerator Research Organization (Japan)
R. Tat, Lawrence Berkeley National Lab. (United States)
G. Teply, Univ. of California, San Diego (United States)
A. Tikhomirov, Dalhousie Univ. (Canada)
T. Tomaru, High Energy Accelerator Research Organization (Japan)
C. Tsai, Univ. of California, San Diego (United States)
C. Verges, APC (France)
B. Westbrook, Univ. of California, Berkeley (United States)
N. Whitehorn, Univ. of California, Los Angeles (United States)
A. Zahn, Univ. of California, San Diego (United States)


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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