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2010•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEOpen access

Characterising the SCUBA-2 superconducting bolometer arrays

Dan Bintley, Michael J. MacIntosh, W. S. Holland, Per Friberg, Craig Walther, David Atkinson, Dennis Kelly, Xiaofeng Gao, P. A. R. Ade, William Grainger, Julian S. House, Lorenzo Moncelsi, M. Hollister, Adam L. Woodcraft, Camelia Dunare, William Parkes, A.J. Walton, K. D. Irwin, G. C. Hilton, Michael D. Niemack, C. D. Reintsema, M. Amiri, B. Burger, M. Halpern, Matthew Hasselfield, Jeff T. Hill, J. B. Kycia, Chas Mugford, Lauren Persaud

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Abstract

SCUBA-2 is a state of the art 10,000 pixel submillimeter camera installed and being commissioned at the James Clerk Maxwell Telescope (JCMT) providing wide-field simultaneous imaging at wavelengths of 450 and 850 microns. At each wavelength there are four 32 by 40 sub-arrays of superconducting Transition Edge Sensor (TES) bolometers, each packaged with inline SQUID multiplexed readout and amplifier. In this paper we present the results of characterising individual 1280 bolometer science grade sub-arrays, both in a dedicated 50mk dilution refrigerator test facility and in the instrument installed at the JCMT.

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What this paper is about

SCUBA-2 is a state of the art 10,000 pixel submillimeter camera installed and being commissioned at the James Clerk Maxwell Telescope (JCMT) providing wide-field simultaneous imaging at wavelengths of 450 and 850 microns. At each wavelength there are four 32 by 40 sub-arrays of superconducting Transition Edge Sensor (TES) bolometers, each packaged with inline SQUID multiplexed readout and amplifier. In this paper we present the results of characterising individual 1280 bolometer science grade sub-arrays, both in a dedicated 50mk dilution refrigerator test facility and in the instrument installed at the JCMT.

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Available abstract

SCUBA-2 is a state of the art 10,000 pixel submillimeter camera installed and being commissioned at the James Clerk Maxwell Telescope (JCMT) providing wide-field simultaneous imaging at wavelengths of 450 and 850 microns. At each wavelength there are four 32 by 40 sub-arrays of superconducting Transition Edge Sensor (TES) bolometers, each packaged with inline SQUID multiplexed readout and amplifier. In this paper we present the results of characterising individual 1280 bolometer science grade sub-arrays, both in a dedicated 50mk dilution refrigerator test facility and in the instrument installed at the JCMT.

Key concepts: James Clerk Maxwell Telescope, Bolometer, Transition edge sensor, Physics, Terahertz radiation, Squid, Telescope, Optics

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