Conference Proceedings
Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol
JW Henning, P Ade, KA Aird, JE Austermann, JA Beall, D Becker, BA Benson, LE Bleem, J Britton, JE Carlstrom, CL Chang, HM Cho, TM Crawford, AT Crites, A Datesman, T De Haan, MA Dobbs, W Everett, A Ewall-Wice, EM George Show all
Proceedings of SPIE the International Society for Optical Engineering | Published : 2012
DOI: 10.1117/12.927172
Abstract
The SPTpol camera is a dichroic polarimetric receiver at 90 and 150 GHz. Deployed in January 2012 on the South Pole Telescope (SPT), SPTpol is looking for faint polarization signals in the Cosmic Microwave Background (CMB). The camera consists of 180 individual Transition Edge Sensor (TES) polarimeters at 90 GHz and seven 84-polarimeter camera modules (a total of 588 polarimeters) at 150 GHz. We present the design, dark characterization, and in-lab optical properties of the 150 GHz camera modules. The modules consist of photolithographed arrays of TES polarimeters coupled to silicon platelet arrays of corrugated feedhorns, both of which are fabricated at NIST-Boulder. In addition to mounting..
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Awarded by National Science Foundation
Funding Acknowledgements
Work at the University of Colorado - Boulder, Case Western Reserve University, the University of California - Berkeley, and the University of Chicago is supported by grants from the NSF (awards ANT-0638937, AST-0956135, and PHY-0114422), the Kavli Foundation, and the Gordon and Betty Moore Foundation. Work at NIST is supported by the NIST Innovations in Measurement Science program. The McGill authors acknowledge funding from the Natural Sciences and Engineering Research Council, Canadian Institute for Advanced Research, and Canada Research Chairs program. MD acknowledges support from an Alfred P. Sloan Research Fellowship. Work at Argonne National Lab is supported by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science Laboratory, is operated under Contract No. DE-AC02-06CH11357.