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A TES development and test facility at Cardiff, and a solution to the optical saturation problem of superconducting bolometers

Mauskopf, Philip Daniel, Hunt, Cynthia L. and Woodcraft, Adam L. 2004. A TES development and test facility at Cardiff, and a solution to the optical saturation problem of superconducting bolometers. Presented at: Millimeter and Submillimeter Detectors for Astronomy II, Glasgow, UK, 23-25 June 2004. Published in: Zmuidzinas, Jonas, Holland, Wayne S. and Withington, Stafford eds. Millimeter and Submillimeter Detectors for Astronomy II: 23-25 June, 2004, Glasgow, Scotland, United Kingdom(Proceedings). Proceedings of SPIE , vol. 5498. Bellingham, WA: The International Society for Optical Engineering, pp. 852-856. 10.1117/12.551496

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Abstract

The Astronomical Instrumentation Group at University of Cardiff is already a UK center for submillimetre bolometric detector testing. The next generation of submillimetre astronomical instrumentation will incorporate arrays of transition-edge sensor (TES) bolometers. With the recently expanded facilities and personnel, the University of Cardiff is poised to become a UK centre for TES development and testing. We have undertaken a coordinated programme to develop TES simulation and test capabilities. One aspect of the programme is to address the problem of saturation of TES bolometers at high optical loads. We have developed a "tunable-G" device, which can vary its thermal conductance whilst in operation. For infrastructure, several sub-Kelvin cryogenic testbeds have been specifically designed to suit the requirements of testing submillimetre TES development bolometers. A description of our tunable-G device to solve the optical saturation problem will be given along with a description of the test facilities available at Cardiff.

Item Type: Conference or Workshop Item (Poster)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Bolometers ; superconductors ; sensors ; simulations ; astronomical instrumentation
Additional Information: Poster Session h: New Devices and Detector Physics
Publisher: The International Society for Optical Engineering
ISBN: 9780819454300
ISSN: 0277-786X
Related URLs:
Last Modified: 04 Jun 2017 07:52
URI: http://orca-mwe.cf.ac.uk/id/eprint/69230

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