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Development of a Microwave SQUID-Multiplexed TES Array for MUSTANG-2

Authors
  • Stanchfield, S. M.1
  • Ade, P. A. R.2
  • Aguirre, J.1
  • Brevik, J. A.3
  • Cho, H. M.4
  • Datta, R.5
  • Devlin, M. J.1
  • Dicker, S. R.1
  • Dober, B.1
  • Egan, D.6
  • Ford, P.6
  • Hilton, G.3
  • Hubmayr, J.3
  • Irwin, K. D.4
  • Marganian, P.6
  • Mason, B. S.7
  • Mates, J. A. B.3
  • McMahon, J.5
  • Mello, M.6
  • Mroczkowski, T.8
  • And 6 more
  • 1 University of Pennsylvania, Philadelphia, PA, USA , Philadelphia (United States)
  • 2 Cardiff University, Cardiff, UK , Cardiff (United Kingdom)
  • 3 National Institute of Standards and Technology Boulder Laboratories, Boulder, USA , Boulder (United States)
  • 4 Stanford University, Stanford, USA , Stanford (United States)
  • 5 University of Michigan, Ann Arbor, USA , Ann Arbor (United States)
  • 6 National Radio Astronomy Observatory, Green Bank, USA , Green Bank (United States)
  • 7 National Radio Astronomy Observatory, Charlottesville, USA , Charlottesville (United States)
  • 8 US Naval Research Lab, Washington, DC, USA , Washington (United States)
  • 9 University of Virginia, Charlottesville, USA , Charlottesville (United States)
Type
Published Article
Journal
Journal of Low Temperature Physics
Publisher
Springer US
Publication Date
Mar 11, 2016
Volume
184
Issue
1-2
Pages
460–465
Identifiers
DOI: 10.1007/s10909-016-1570-4
Source
Springer Nature
Keywords
License
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Abstract

MUSTANG-2 is a 90 GHz feedhorn-coupled, microwave SQUID-multiplexed TES bolometer array in the final stages of development for operation on the 100-m Robert C. Byrd Green Bank Telescope. We present the camera design and report the performance during the first season of observation, in which 64 of the available 215 pixels in the focal plane were populated. We highlight the microwave multiplexing readout technology, which is envisioned as a path to read out the next generation of large pixel-count cryogenic focal planes. In this regard, MUSTANG2 is a pathfinder for this multiplexing technology. We present noise spectra which show no detector noise degradation when read out with microwave SQUID multiplexing, and we present first light images of Jupiter and M87, which demonstrate the end-to-end system performance.

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