Computer Science – Performance
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942230c&link_type=abstract
American Astronomical Society, AAS Meeting #219, #422.30
Computer Science
Performance
Scientific paper
SCUBA-2 is an innovative 10,000-pixel camera operating at submillimetre wavelengths on the James Clerk Maxwell Telescope (JCMT) on Mauna Kea. It images the sky simultaneously in wavebands at 450 and 850 microns, and has a wide field-of-view of 43 square arcminutes. The detectors are superconducting transition-edge sensors, arranged in 4 sub-arrays at each waveband, and operating at temperatures close to 100mK to provide background-limited sensitivity. The readout consists of SQUID amplifiers in the focal plane with time-division multiplexing. In this paper we describe the electrical and thermal properties of the SCUBA-2 detector arrays as well as the early on-sky performance. The instrument is now in regular operation and a comprehensive submillimetre survey programme, the JCMT Legacy Survey, has commenced (see companion paper by Chrysostomou et al., session 40).
Chrysostomou Antonio
Davis Gary R.
Holland Wayne S.
SCUBA-2 Team
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