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Proceedings Paper

Cryogenic thermal design overview of the 30-K passively cooled integrated science instrument module (ISIM) for NASA's Next Generation Space Telescope
Author(s): Keith Alan Parrish; Shaun R. Thomson
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Paper Abstract

Baseline configurations for NASA's Next Generation Space Telescope (NGST) include a multi-module science instrument package with near-infrared (near-IR) detectors passively cooled to below 30 K. This integrated science instrument model (ISIM) will also house mid-infrared (mid-IR) detectors that are cooled to 6-7 K with a mechanical cooler or stored cryogen. These complex cooling requirements, combined with the NGST concept of a large deployed aperture optical telescope passively cooled to below 40 K, makes NGST one of the most unique and thermally challenging missions flown to date. This paper describes the current status and baseline thermal/cryogenic systems design and analysis approach for the ISIM. The extreme thermal challenges facing the ISIM are presented along with supporting heat maps and analysis results.

Paper Details

Date Published: 25 November 2002
PDF: 11 pages
Proc. SPIE 4822, Cryogenic Optical Systems and Instruments IX, (25 November 2002); doi: 10.1117/12.454833
Show Author Affiliations
Keith Alan Parrish, NASA Goddard Space Flight Ctr. (United States)
Shaun R. Thomson, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 4822:
Cryogenic Optical Systems and Instruments IX
James B. Heaney; Lawrence G. Burriesci, Editor(s)

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