Paper
27 April 1988 Design And Performance Analysis Of The Claes NE/CO2 Cryostat
L. G Naes, W J Horsley, C. S. Ngai, D. C. Read, T C Nast
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Abstract
The Cryogenic Limb Array Etalon Spectrometer (CLAES)1 is one of nine instruments that will fly aboard the Upper Atmospheric Research Satellite (UARS)2 in the fall of 1991. CLAES is an earth-limb viewing instrument that requires cryogenic cooling of its focal plane (<15.0K), spectrometer (<30K), telescope (<150K), and baffles (<180K) in order to achieve the required performance sensitivity. Initially, the CLAES baseline design incorporated a single-stage solid hydrogen cryostat to perform the necessary cooling, however, after the Challenger shuttle disaster, the UARS and CLAES Project Offices investigated the feasibility of incorporating a completely inert cryogen system for CLAES. The result of this study showed that a dual stage Ne/CO2 cryostat would meet all sensor cooling requirements, provided that a significant increase in weight could be accommodated. In December '86, the Ne/CO2 design was adopted as the new cryostat baseline for CLAES. The focal plane and spectrometer are conductively cooled to the solid neon (13.2 K) while the telescope and internal baffles are cooled by the CO2 (121.8K). This paper describes the design and performance of the Ne/CO2 cryostat.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. G Naes, W J Horsley, C. S. Ngai, D. C. Read, and T C Nast "Design And Performance Analysis Of The Claes NE/CO2 Cryostat", Proc. SPIE 0973, Cryogenic Optical Systems and Instruments III, (27 April 1988); https://doi.org/10.1117/12.948385
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Cited by 3 scholarly publications.
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KEYWORDS
Neon

Cryogenic limb array etalon spectrometers

Carbon dioxide

Sensors

Cryogenics

Space operations

Solids

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