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Proceedings Paper

BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization
Author(s): Z. Ahmed; M. Amiri; S. J. Benton; J. J. Bock; R. Bowens-Rubin; I. Buder; E. Bullock; J. Connors; J. P. Filippini; J. A. Grayson; M. Halpern; G. C. Hilton; V. V. Hristov; H. Hui; K. D. Irwin; J. Kang; K. S. Karkare; E. Karpel; J. M. Kovac; C. L. Kuo; C. B. Netterfield; H. T. Nguyen; R. O'Brient; R. W. Ogburn; C. Pryke; C. D. Reintsema; S. Richter; K. L. Thompson; A. D. Turner; A. G. Vieregg; W. L. K. Wu; K. W. Yoon
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Paper Abstract

Bicep3 is a 550 mm-aperture refracting telescope for polarimetry of radiation in the cosmic microwave background at 95 GHz. It adopts the methodology of Bicep1, Bicep2 and the Keck Array experiments | it possesses sufficient resolution to search for signatures of the inflation-induced cosmic gravitational-wave background while utilizing a compact design for ease of construction and to facilitate the characterization and mitigation of systematics. However, Bicep3 represents a significant breakthrough in per-receiver sensitivity, with a focal plane area 5x larger than a Bicep2/Keck Array receiver and faster optics (f=1:6 vs. f=2:4). Large-aperture infrared-reflective metal-mesh filters and infrared-absorptive cold alumina filters and lenses were developed and implemented for its optics. The camera consists of 1280 dual-polarization pixels; each is a pair of orthogonal antenna arrays coupled to transition-edge sensor bolometers and read out by multiplexed SQUIDs. Upon deployment at the South Pole during the 2014-15 season, Bicep3 will have survey speed comparable to Keck Array 150 GHz (2013), and will signifcantly enhance spectral separation of primordial B-mode power from that of possible galactic dust contamination in the Bicep2 observation patch

Paper Details

Date Published: 19 August 2014
PDF: 12 pages
Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91531N (19 August 2014); doi: 10.1117/12.2057224
Show Author Affiliations
Z. Ahmed, Stanford Univ. (United States)
SLAC National Accelerator Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
M. Amiri, The Univ. of British Columbia (Canada)
S. J. Benton, Univ. of Toronto (Canada)
J. J. Bock, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
R. Bowens-Rubin, Harvard-Smithsonian Ctr. for Astrophysics (United States)
I. Buder, Harvard-Smithsonian Ctr. for Astrophysics (United States)
E. Bullock, Univ. of Minnesota (United States)
J. Connors, Harvard-Smithsonian Ctr. for Astrophysics (United States)
J. P. Filippini, California Institute of Technology (United States)
J. A. Grayson, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
M. Halpern, The Univ. of British Columbia (Canada)
G. C. Hilton, National Institute of Standards and Technology (United States)
V. V. Hristov, California Institute of Technology (United States)
H. Hui, California Institute of Technology (United States)
K. D. Irwin, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
J. Kang, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
K. S. Karkare, Harvard-Smithsonian Ctr. for Astrophysics (United States)
E. Karpel, Stanford Univ. (United States)
J. M. Kovac, Harvard-Smithsonian Ctr. for Astrophysics (United States)
C. L. Kuo, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
C. B. Netterfield, Univ. of Toronto (Canada)
H. T. Nguyen, Jet Propulsion Lab. (United States)
R. O'Brient, California Institute of Technology (United States)
R. W. Ogburn, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
C. Pryke, Univ. of Minnesota (United States)
C. D. Reintsema, National Institute of Standards and Technology (United States)
S. Richter, Harvard-Smithsonian Ctr. for Astrophysics (United States)
K. L. Thompson, Stanford Univ. (United States)
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Lab. (United States)
A. D. Turner, Jet Propulsion Lab. (United States)
A. G. Vieregg, Univ. of Chicago (United States)
W. L. K. Wu, Stanford Univ. (United States)
SLAC National Lab., Kavli Institute for Particle Astrophysics and Cosmology (United States)
K. W. Yoon, Stanford Univ. (United States)
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Lab. (United States)


Published in SPIE Proceedings Vol. 9153:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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