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Proceedings Paper

Scaling the summit of the submillimetre: instrument performance of SCUBA-2
Author(s): Dan Bintley; Michael J. MacIntosh; Wayne S. Holland; Jessica T. Dempsey; Per Friberg; John T. Kuroda; Erik G. Starman; Holly S. Thomas; Craig Walther; Xiaofeng Gao; Peter A. R. Ade; Rashmi V. Sudiwala; Camelia Dunare; William Parkes; Anthony J. Walton; Kent D. Irwin; Gene C. Hilton; Michael Niemack; Mandana Amiri; Viktoria Asboth; Bryce Burger; Edward L. Chapin; Mark Halpern; Matthew Hasselfield; Adam L. Woodcraft
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Paper Abstract

SCUBA-2 is a revolutionary 10,000 pixel wide-field submillimetre camera, recently commissioned and now operational at the James Clerk Maxwell Telescope (JCMT). Twin focal planes each consist of four 32 by 40 sub-arrays of superconducting Transition Edge Sensor (TES) bolometers, the largest combined low temperature bolometer arrays in operation, to provide simultaneous imaging at wavelengths of 450 and 850 microns. SCUBA-2 was designed to map large areas of sky more than 100 times faster than the original ground breaking SCUBA instrument and has achieved this goal. In this paper we describe the performance of the instrument and present results of characterising the eight science grade TES bolometer arrays. We discuss the steps taken to optimise the setup of the TES arrays to maximise mapping speed and show how critical changes to the sub-array module thermal design, the introduction of independent focal plane and 1K temperature control and enhancements to the cryogenics have combined to significantly improve the overall performance of the instrument.

Paper Details

Date Published: 24 September 2012
PDF: 13 pages
Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 845208 (24 September 2012); doi: 10.1117/12.926613
Show Author Affiliations
Dan Bintley, Joint Astronomy Ctr. (United States)
Michael J. MacIntosh, UK Astronomy Technology Ctr. (United Kingdom)
Wayne S. Holland, UK Astronomy Technology Ctr. (United Kingdom)
Univ. of Edinburgh (United Kingdom)
Jessica T. Dempsey, Joint Astronomy Ctr. (United States)
Per Friberg, Joint Astronomy Ctr. (United States)
John T. Kuroda, Joint Astronomy Ctr. (United States)
Erik G. Starman, Joint Astronomy Ctr. (United States)
Holly S. Thomas, Joint Astronomy Ctr. (United States)
Craig Walther, Joint Astronomy Ctr. (United States)
Xiaofeng Gao, UK Astronomy Technology Ctr. (United Kingdom)
Peter A. R. Ade, Cardiff Univ. (United Kingdom)
Rashmi V. Sudiwala, Cardiff Univ. (United Kingdom)
Camelia Dunare, Univ. of Edinburgh (United Kingdom)
William Parkes, Univ. of Edinburgh (United Kingdom)
Anthony J. Walton, Univ. of Edinburgh (United Kingdom)
Kent D. Irwin, National Institute of Standards and Technology (United States)
Gene C. Hilton, National Institute of Standards and Technology (United States)
Michael Niemack, National Institute of Standards and Technology (United States)
Mandana Amiri, The Univ. of British Columbia (Canada)
Viktoria Asboth, The Univ. of British Columbia (Canada)
Bryce Burger, The Univ. of British Columbia (Canada)
Edward L. Chapin, The Univ. of British Columbia (Canada)
Mark Halpern, The Univ. of British Columbia (Canada)
Matthew Hasselfield, The Univ. of British Columbia (Canada)
Adam L. Woodcraft, UK Astronomy Technology Ctr. (United Kingdom)
QMC Instruments Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 8452:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
Wayne S. Holland, Editor(s)

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