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Proceedings Paper

Cryogenic Infrared Radiance Instrument For Shuttle (CIRRIS) Telescope
Author(s): J. S. Titus; D. Wang; Mark Ahmadjian; Donald R. Smith
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Paper Abstract

A high straylight cryogenic telescope has been developed to provide spatial definition for a Fourier Transform Spectrometer. The system is all-aluminum and uses off-axis super-polished parabolas with an advanced baffle system for high straylight performance at cryogenic temperatures. The all-reflective optical system is capable of better than 0.1 milliradian resolution over a half a degree field-of-view. The brazed mechanical structure is integrated with a careful thermal design, allowing the optics to maintain liquid helium region temperatures without the use of thermal straps. The telescope has been tested for stray light, optical performance at cryogenic temperatures and against shuttle environmental requirements. A discussion of the design analyses, test rechniques and measured results will be included in the paper.

Paper Details

Date Published: 16 November 1982
PDF: 7 pages
Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); doi: 10.1117/12.933459
Show Author Affiliations
J. S. Titus, SSG, Inc. (United States)
D. Wang, SSG, Inc. (United States)
Mark Ahmadjian, Air Force Geophysics Laboratory (United States)
Donald R. Smith, Air Force Geophysics Laboratory (United States)


Published in SPIE Proceedings Vol. 0331:
Instrumentation in Astronomy IV
David L. Crawford, Editor(s)

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