Scaling the summit of the submillimetre: Instrument performance of SCUBA-2

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 AsbothBryce Burger, Edward L. Chapin, Mark Halpern, Matthew Hasselfield, Adam Woodcraft

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
DOIs
StatePublished - Dec 1 2012
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI - Amsterdam, Netherlands
Duration: Jul 3 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8452
ISSN (Print)0277-786X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
CountryNetherlands
CityAmsterdam
Period7/3/127/6/12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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