Bench cooling the Thematic MapperThe present investigation is concerned with the bench cooling system which was developed in conjunction with the Thematic Mapper (TM), a second-generation earth resources sensor. A small, permanently evacuated dewar, which is carried into space with the instrument, is employed to provide thermal isolation for bench cooling IR detectors of many space-borne instruments. This approach has, however, a number of disadvantages. The system designed for cooling the TM makes, therefore, use of a new approach, involving a temporarily evacuated, take-apart dewar in combination with a temperature-controlled Joule-Thomson cryostat.
Document ID
19840044525
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kuyper, D. J. (Santa Barbara Research Center Goleta, CA, United States)
Buller, J. S. (Santa Barbara Research Center Goleta, CA, United States)