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Performance of flight-model on-board calibration sources on Herschel-SPIRE

Hargrave, Peter Charles, Waskett, Tim, Lim, Tanya and Swinyard, Bruce 2006. Performance of flight-model on-board calibration sources on Herschel-SPIRE. Presented at: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, Orlando, FL, USA, 29-31 May 2006. Published in: Zmuidzinas, Jonas, Holland, Wayne S., Withington, Stafford and Duncan, William D. eds. Millimeter and submillimeter detectors and instrumentation for astronomy III (Proceedings). Proceedings of SPIE--the International Society for Optical Engineering , vol. 6275. Bellingham, WA: The International Society for Optical Engineering, p. 627514. 10.1117/12.673197

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The SPIRE instrument for the Herschel Space Observatory has two on-board calibration sources. The photometer calibrator, PCAL, is an electrically-heated thermal source which can be seen by all detectors, including the spectrometer. It is not an absolute calibrator, but a repeatable source of sub-millimetre radiation which may be used in the overall calibration scheme. The purpose of the spectrometer calibrator is to null the background emission from the Herschel telescope, thereby improving the dynamic range of the spectrometer detectors. This paper details the final flight design of the calibration units, and presents results from SPIRE flight model ground testing.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: The International Society for Optical Engineering
ISBN: 9780819463401
ISSN: 0277-786X
Last Modified: 04 Jun 2017 06:48

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