Cryogenic Infrared Radiance Instrument For Shuttle (CIRRIS) Telescope

J. S. Titus; D. Wang; Mark Ahmadjian; Donald R. Smith

doi:10.1117/12.933459

16 November 1982 Cryogenic Infrared Radiance Instrument For Shuttle (CIRRIS) Telescope

J. S. Titus, D. Wang, Mark Ahmadjian, Donald R. Smith

Proceedings Volume 0331, Instrumentation in Astronomy IV; (1982) https://doi.org/10.1117/12.933459
Event: 1982 Astronomy Conferences, 1982, Tucson, United States

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.

Citation Download Citation

J. S. Titus, D. Wang, Mark Ahmadjian, and Donald R. Smith "Cryogenic Infrared Radiance Instrument For Shuttle (CIRRIS) Telescope", Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); https://doi.org/10.1117/12.933459

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