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Proceedings Paper

Protection Of Satellite Infrared Experiment (SIRE) Cryogenic Infrared (IR) Optics In Shuttle Orbiter
Author(s): Andrew Guttman; Robert D. Furber; E. P. Muntz
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Paper Abstract

The SIRE sensor is scheduled for use in orbital experiments aboard the Shuttle Orbiter vehicle during 1983. Sources of gas phase contaminants and how they affect the cryogenic optics have been studied and the results are summarized in this paper. A helium gas purging system has been designed on the basis of ion beam experiments carried out in the laboratory. Flow rates on the order of 10-4 grams/second are indicated for orbital altitudes of about 250 n. mi. Analytical computations that include the effects of the detailed scattering geometry indicate the need for higher purge gas flow rates than those based on the laboratory data.

Paper Details

Date Published: 5 August 1980
PDF: 12 pages
Proc. SPIE 0216, Optics in Adverse Environments II, (5 August 1980); doi: 10.1117/12.958460
Show Author Affiliations
Andrew Guttman, Hughes Aircraft Company (United States)
Robert D. Furber, Hughes Aircraft Company (United States)
E. P. Muntz, University of Southern California (United States)

Published in SPIE Proceedings Vol. 0216:
Optics in Adverse Environments II
Mark A. Kahan, Editor(s)

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