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Proceedings Paper

Preliminary design of the PACS grating assembly for the FIRST mission
Author(s): Etienne Renotte; Jean-Marie Gillis; Claude A. J. Jamar; P. Laport; Th. Salee; S. Crehay
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Paper Abstract

The Photoconductor Array Camera and Spectrometer (PACS) is an imaging spectro-photometer which forms part of the science payload of the Far InfraRed and Submillimeter Telescope (FIRST), an ESA cornerstone mission (CS4) to be launched in 2007. This paper reports the preliminary developments of the motorized grating assembly for the PACS spectrometer. The PACS grating shall be capable of accurate positioning (4 arcsec) within a large angular throw (40 arcdeg) in cryogenic environment (4 K). Technologies and trade-offs of grating manufacturing, actuators, pivots, position sensors, and servo- control are presented.

Paper Details

Date Published: 6 December 1999
PDF: 16 pages
Proc. SPIE 3759, Infrared Spaceborne Remote Sensing VII, (6 December 1999); doi: 10.1117/12.372696
Show Author Affiliations
Etienne Renotte, Ctr. Spatial de Liege (Belgium)
Jean-Marie Gillis, Ctr. Spatial de Liege (Belgium)
Claude A. J. Jamar, Ctr. Spatial de Liege (Belgium)
P. Laport, Ctr. Spatial de Liege (Belgium)
Th. Salee, Ctr. Spatial de Liege (Belgium)
S. Crehay, Ctr. Spatial de Liege (Belgium)

Published in SPIE Proceedings Vol. 3759:
Infrared Spaceborne Remote Sensing VII
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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