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Proceedings Article

The BICEP2 CMB polarization experiment

[+] Author Affiliations
R. W. Ogburn IV, C. L. Kuo, S. A. Stokes, J. E. Tolan

Stanford Univ. (USA) and Kavli Institute for Particle Astrophysics and Cosmology (USA)

P. A. R. Ade, R. V. Sudiwala

Cardiff Univ. (United Kingdom)

R. W. Aikin, J. J. Bock, J. A. Brevik, C. D. Dowell, J. P. Filippini, S. R. Golwala, V. V. Hristov, A. E. Lange, A. Orlando, M. C. Runyan, Z. K. Staniszewski, G. P. Teply

California Institute of Technology (USA)

M. Amiri, B. Burger, M. Halpern, M. Hasselfield

The Univ. of British Columbia (Canada)

S. J. Benton, C. B. Netterfield

Univ. of Toronto (Canada)

J. A. Bonetti

Jet Propulsion Lab. (USA) and California Institute of Technology (USA)

L. Duband

Service des Basses Tempratures, DRFMC, CEA-Grenoble (France)

G. Hilton, K. Irwin, C. Reintsema

National Institute of Standards and Technology (USA)

J. P. Kaufman, B. G. Keating

Univ. of California, San Diego (USA)

J. M. Kovac, S. Richter

Harvard-Smithsonian Ctr. for Astrophysics (USA)

E. M. Leitch

Univ. of Chicago (USA)

H. T. Nguyen, A. D. Turner, P. Wilson

Jet Propulsion Lab. (USA)

C. L. Pryke

The Univ. of Chicago (USA)

J. E. Ruhl

Case Western Reserve Univ. (USA)

C. D. Sheehy

The Univ. of Chicago (USA) and Univ. of Minnesota (USA)

C. L. Wong

Harvard Smithsonian Ctr. for Astrophysics (USA)

Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411G (July 15, 2010); doi:10.1117/12.857864
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From Conference Volume 7741

  • Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
  • Wayne S. Holland; Jonas Zmuidzinas
  • San Diego, California, USA | June 27, 2010

abstract

The Bicep2 telescope is designed to measure the polarization of the cosmic microwave background on angular scales near 2-4 degrees, near the expected peak of the B-mode polarization signal induced by primordial gravitational waves from inflation. Bicep2 follows the success of Bicep, which has set the most sensitive current limits on B-modes on 2-4 degree scales. The experiment adopts a new detector design in which beam-defining slot antennas are coupled to TES detectors photolithographically patterned in the same silicon wafer, with multiplexing SQUID readout. Bicep2 takes advantage of this design's higher focal-plane packing density, ease of fabrication, and multiplexing readout to field more detectors than Bicep1, improving mapping speed by nearly a factor of 10. Bicep2 was deployed to the South Pole in November 2009 with 500 polarization-sensitive detectors at 150 GHz, and is funded for two seasons of observation. The first months' data demonstrate the performance of the Caltech/JPL antenna-coupled TES arrays, and two years of observation with Bicep2 will achieve unprecedented sensitivity to B-modes on degree angular scales.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

R. W. Ogburn IV ; P. A. R. Ade ; R. W. Aikin ; M. Amiri ; S. J. Benton, et al.
"The BICEP2 CMB polarization experiment", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411G (July 15, 2010); doi:10.1117/12.857864; http://dx.doi.org/10.1117/12.857864


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