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Proceedings Paper

Long-life spaceborne cryocooler for the Advanced Spaceborne Thermal Emission and Reflection Radiometer/Thermal Infrared Radiometer (ASTER/TIR)
Author(s): Keiji Kamei; Osamu Nishihara
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Paper Abstract

We have been developing a long life spaceborne cryocooler for the thermal infrared radiometer (TIR), an observation system on the advanced spaceborne thermal emission and reflection radiometer (ASTER). ASTER was selected by NASA to fly on the EOS-AM1 platform which will be launched in 1998. The TIR cryocooler was designed to maintain the infrared detector's temperature at 80 Kelvin. And to do this, the cooling capacity is required more than 1.2 W when the cold head is 70 K. The cryocooler must operate continuously for more than 5 years with low mechanical disturbance. To meet these requirement, we used clearance seals and linear electric motors for long life, and back-to-back compressors and an expander with an active balancer for low mechanical disturbance.

Paper Details

Date Published: 14 September 1994
PDF: 9 pages
Proc. SPIE 2268, Infrared Spaceborne Remote Sensing II, (14 September 1994); doi: 10.1117/12.185827
Show Author Affiliations
Keiji Kamei, Fujitsu Ltd. (Japan)
Osamu Nishihara, Fujitsu Ltd. (Japan)

Published in SPIE Proceedings Vol. 2268:
Infrared Spaceborne Remote Sensing II
Marija S. Scholl, Editor(s)

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