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

Peter Hargrave; Tim Waskett; Tanya Lim; Bruce Swinyard

doi:10.1117/12.673197

27 June 2006 Performance of flight-model on-board calibration sources on Herschel-SPIRE

Peter Hargrave, Tim Waskett, Tanya Lim, Bruce Swinyard

Author Affiliations +

Proceedings Volume 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III; 627514 (2006) https://doi.org/10.1117/12.673197
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

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.

Citation Download Citation

Peter Hargrave, Tim Waskett, Tanya Lim, and Bruce Swinyard "Performance of flight-model on-board calibration sources on Herschel-SPIRE", Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 627514 (27 June 2006); https://doi.org/10.1117/12.673197

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