SCUBA-2: A large-format CCD-style imager for submillimeter astronomy

M. D. Audley*, W. Holland, D. Atkinson, M. Cliffe, M. Ellis, X. Gao, D. Gostick, T. Hodson, D. Kelly, M. MacIntosh, H. McGregor, D. Montgomery, I. Smith, I. Robson, K. Irwin, W. Duncan, R. Doriese, G. Hilton, C. Reintsema, J. UllomL. Vale, A. Walton, W. Parkes, C. Dunare, P. Ade, D. Bintley, F. Gannaway, C. Hunt, G. Pisano, R. Sudiwala, I. Walker, A. Woodcraft, M. Fich, M. Halpern, J. Kycia, D. Naylor, P. Bastien, G. Mitchell

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We describe the capabilities of SCUBA-2, the first CCD-like imager for submillimeter astronomy, and the technologies that make it possible. Unlike previous detectors using discrete bolometers, SCUBA-2 has two dc-coupled, monolithic arrays with a total of ∼10,000 bolometers. SCUBA-2's absorber-coupled pixels use superconducting transition edge sensors operating at ∼120 mK for photon-noise limited performance and a SQUID time-domain multiplexer for readout. It will offer simultaneous imaging of an 8 × 8 arcmin field of view at wavelengths of 850 μm and 450 μm. SCUBA-2 is expected to have a huge impact on the study of galaxy formation and evolution in the early Universe as well as star and planet formation in our own Galaxy. Mapping the sky to the same S/N up to 1000 times faster than SCUBA, SCUBA-2 will also act as a pathfinder for submillimeter interferometers such as ALMA. SCUBA-2 will begin operation on the JCMT in 2006.

Original languageEnglish
Title of host publicationExploring the Cosmic Frontier
Subtitle of host publicationAstrophysical Instruments for the 21st Century
EditorsAndrei Labanov, Catherine Cesarsky, Phillip Diamond
Pages45-46
Number of pages2
DOIs
Publication statusPublished - 23 Feb 2007

Publication series

NameESO Astrophysics Symposia
Volume2007
ISSN (Print)1431-2433
ISSN (Electronic)1611-6143

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