The Keck Array: A pulse tube cooled CMB polarimeter

C. D. Sheehy, P. A R Ade, R. W. Aikin, M. Amiri, S. Benton, C. Bischoff, 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. KaufmanB. G. Keating, J. M. Kovac, C. L. Kuo, A. E. Lange, E. M. Leitch, M. Lueker, C. B. Netterfield, H. T. Nguyen, R. W. Ogburn Iv, A. Orlando, C. L. Pryke, C. Reintsema, S. Richter, J. E. Ruhl, M. C. Runyan, Z. Staniszewski, S. Stokes, R. Sudiwala, G. Teply, K. L. Thompson, J. E. Tolan, A. D. Turner, P. Wilson, C. L. Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Scopus citations

Abstract

The Keck Array is a cosmic microwave background (CMB) polarimeter that will begin observing from the South Pole in late 2010. The initial deployment will consist of three telescopes similar to BICEP2 housed in ultracompact, pulse tube cooled cryostats. Two more receivers will be added the following year. In these proceedings we report on the design and performance of the Keck cryostat. We also report some initial results on the performance of antenna-coupled TES detectors operating in the presence of a pulse tube. We find that the performance of the detectors is not seriously impacted by the replacement of BICEP2's liquid helium cryostat with a pulse tube cooled cryostat.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
DOIs
StatePublished - 2010
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V - San Diego, CA, United States
Duration: Jun 29 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7741
ISSN (Print)0277-786X

Conference

ConferenceMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
CountryUnited States
CitySan Diego, CA
Period6/29/107/2/10

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