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Proceedings Paper

Initial performance of the BICEP2 antenna-coupled superconducting bolometers at the South Pole
Author(s): J. A. Brevik; R. W. Aikin; M. Amiri; S. J. Benton; J. J. Bock; J. A. Bonetti; B. Burger; C. D. Dowell; L. Duband; J. P. Filippini; S. R. Golwala; M. Halpern; M. Hasselfield; G. Hilton; V. V. Hristov; K. Irwin; J. P. Kaufman; B. G. Keating; J. M. Kovac; C. L. Kuo; A. E. Lange; E. M. Leitch; C. B. Netterfield; H. T. Nguyen; R. W. Ogburn; A. Orlando; C. Pryke; C. Reintsema; S. Richter; J. E. Ruhl; M. Runyan; C. Sheehy; Z. Staniszewski; R. Sudiwala; J. E. Tolan; A. D. Turner; P. Wilson; C. L. Wong
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Paper Abstract

We report on the preliminary detector performance of the Bicep2 mm-wave polarimeter, deployed in 2009 to the South Pole. Bicep2 is currently imaging the polarization of the cosmic microwave background at 150 GHz using an array of 512 antenna-coupled superconducting bolometers. The antennas, band-defining filters and transition edge sensor (TES) bolometers are photolithographically fabricated on 4 silicon tiles. Each tile consists of an 8×8 grid of ~7 mm spatial pixels, for a total of 256 detector pairs. A spatial pixel contains 2 sets of orthogonal antenna slots summed in-phase, with each set coupled to a TES by a filtered microstrip. The detectors are read out using time-domain multiplexed SQUIDs. The detector pair of each spatial pixel is differenced to measure polarization. We report on the performance of the Bicep2 detectors in the field, including the focal plane yield, detector and multiplexer optimization, detector noise and stability, and a preliminary estimate of the improvement in mapping speed compared to Bicep1.

Paper Details

Date Published: 15 July 2010
PDF: 10 pages
Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411H (15 July 2010); doi: 10.1117/12.857861
Show Author Affiliations
J. A. Brevik, California Institute of Technology (United States)
R. W. Aikin, California Institute of Technology (United States)
M. Amiri, The Univ. of British Columbia (Canada)
S. J. Benton, Univ. of Toronto (Canada)
J. J. Bock, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
J. A. Bonetti, Jet Propulsion Lab. (United States)
B. Burger, The Univ. of British Columbia (Canada)
C. D. Dowell, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
L. Duband, Service des Basses Temperatures, DRFMC, CEA-Grenoble (France)
J. P. Filippini, California Institute of Technology (United States)
S. R. Golwala, California Institute of Technology (United States)
M. Halpern, The Univ. of British Columbia (Canada)
M. Hasselfield, The Univ. of British Columbia (Canada)
G. Hilton, National Institute of Standards and Technology (United States)
V. V. Hristov, California Institute of Technology (United States)
K. Irwin, National Institute of Standards and Technology (United States)
J. P. Kaufman, Univ. of California, San Diego (United States)
B. G. Keating, Univ. of California, San Diego (United States)
J. M. Kovac, Harvard-Smithsonian Ctr. for Astrophysics (United States)
C. L. Kuo, Stanford Univ. (United States)
Kavli Institute for Particle Astrophysics and Cosmology (United States)
A. E. Lange, California Institute of Technology (United States)
E. M. Leitch, The Univ. of Chicago (United States)
C. B. Netterfield, Univ. of Toronto (Canada)
H. T. Nguyen, Jet Propulsion Lab. (United States)
California Institute of Technology (United States)
R. W. Ogburn, Stanford Univ. (United States)
Kavli Institute for Particle Astrophysics and Cosmology (United States)
A. Orlando, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
C. Pryke, Univ. of Minnesota (United States)
C. Reintsema, National Institute of Standards and Technology (United States)
S. Richter, Harvard-Smithsonian Ctr. for Astrophysics (United States)
J. E. Ruhl, Case Western Reserve Univ. (United States)
M. Runyan, California Institute of Technology (United States)
C. Sheehy, The Univ. of Chicago (United States)
Univ. of Minnesota (United States)
Z. Staniszewski, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
R. Sudiwala, Univ. of Wales (United Kingdom)
J. E. Tolan, Stanford Univ. (United States)
Kavli Institute for Particle Astrophysics and Cosmology (United States)
A. D. Turner, Jet Propulsion Lab. (United States)
P. Wilson, Jet Propulsion Lab. (United States)
C. L. Wong, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 7741:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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