System to detect and remove contaminants from space optics

Details System to detect and remove contaminants from space optics System to detect and remove contaminants from space optics

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1754..262s&link_type=abstract

In: Optical system contamination: Effects, measurement, control III; Proceedings of the Meeting, San Diego, CA, July 23, 24, 199

Physics

1

Contaminants, Decontamination, Mirrors, Spaceborne Telescopes, Spacecraft Contamination, Vacuum Tests, Cryogenic Equipment, Electromagnetic Scattering, Ground Tests, Optical Properties, Particulates, Surface Properties

Scientific paper

A system for detecting and removing contaminants from a half-meter diameter primary mirror in a simulated space telescope has been designed, fabricated, and tested under vacuum conditions. Various molecular and particulate contaminants are deposited on the mirror by special sources in the open end of the telescope, causing an increase in optical scatter which is detected at infrared wavelengths by special sensors on the wall of the telescope. Depending on the type of contaminant, either of two systems of contamination-removal hardware is activated to clean the mirror surface and restore the original scattering level.

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