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The BICEP2 CMB polarization experiment

Ogburn, R. W., IV and Aikin, R. W. and Bock, J. J. and Bonetti, J. A. and Brevik, J. A. and Dowell, C. D. and Filippini, J. P. and Golwala, S. R. and Hristov, V. V. and Lange, A. E. and Orlando, A. and Runyan, M. C. and Staniszewski, Z. K. and Teply, G. P. (2010) The BICEP2 CMB polarization experiment. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V. Proceedings of SPIE. No.7741. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77411G. ISBN 978-0-81948-231-0. http://resolver.caltech.edu/CaltechAUTHORS:20161031-081454194

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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.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.857864DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1346792PublisherArticle
ORCID:
AuthorORCID
Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2010 SPIE. The International Society for Optical Engineering. This paper is dedicated to the memory of Andrew Lange, who died under tragic circumstances in January 2010. Andrew made invaluable contributions to the field of experimental cosmology. He played a central role in the conception of the BICEP2 and Keck experiments. His scientific aptitude, leadership, and unique abilities to recognize and develop young scientists are sorely missed by his friends and colleagues. Bicep2 has been made possible by support from the National Science Foundation, Grant No. ANT-0742818. Detector development has been made possible by the generous support of the Gordon and Betty Moore Foundation. RWO gratefully acknowledges support from the Kavli Institute for Particle Astrophysics and Cosmology. We are grateful to have Steffen Richter as our 2010 South Pole winter-over. The Bicep2 team would also like to thank the South Pole Station staff for logistical support. We thank our Bicep, Keck Array, and Spider colleagues for useful discussions and shared expertise. Finally we wish to thank Barbara Wertz and Kathy Deniston for their tireless logistical and administrative support.
Funders:
Funding AgencyGrant Number
NSFANT-0742818
Gordon and Betty Moore FoundationUNSPECIFIED
Kavli Institute for Particle Astrophysics and CosmologyUNSPECIFIED
Subject Keywords:Cosmic microwave background, microwave, TES, polarization, inflation, gravitational waves, cosmology
Record Number:CaltechAUTHORS:20161031-081454194
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20161031-081454194
Official Citation:R. W. Ogburn IV ; P. A. R. Ade ; R. W. Aikin ; M. Amiri ; S. J. Benton ; J. J. Bock ; J. A. Bonetti ; J. A. Brevik ; 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 ; A. Orlando ; C. L. Pryke ; C. Reintsema ; S. Richter ; J. E. Ruhl ; M. C. Runyan ; C. D. Sheehy ; Z. K. Staniszewski ; S. A. Stokes ; R. V. Sudiwala ; G. P. Teply ; J. E. Tolan ; A. D. Turner ; P. Wilson ; C. L. Wong; 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.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71600
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:31 Oct 2016 16:04
Last Modified:12 Dec 2016 00:07

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