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Proceedings Paper

Space qualified mid-infrared illumination sources
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Paper Abstract

We present details of a new illumination source, suitable for use on mid-infrared satellite instruments. The device is based around an electrically heated tungsten filament. The source is compact, and dissipates typically 9 mW for an effective black-body temperature of 1000 K. A typical device design will warm from 4 K to 1000 K in around 1 s, and cool from 1000 K to 4 K in around 2.5 s. We present results for a range of device designs, and discuss the range of parameter space (e.g. power dissipation, time constant, photon flux) to which these devices can be tuned. A device of this type is currently in qualification for flight on JWST-MIRI1, and similar devices are being considered for use on JWST-NIRSPEC and SPICA2-ESI3.

Paper Details

Date Published: 14 June 2006
PDF: 10 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62652E (14 June 2006); doi: 10.1117/12.673176
Show Author Affiliations
Darren Hayton, Cardiff Univ. (United Kingdom)
Peter Hargrave, Cardiff Univ. (United Kingdom)
Alistair Glasse, UK Astronomy Technology Ctr. (United Kingdom)

Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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