Discrete CMT infrared detectors for space application, from ISSR to second generation Meteosat and MIPAS

Details Discrete CMT infrared detectors for space application, from ISSR to second generation Meteosat and MIPAS Discrete CMT infrared detectors for space application, from ISSR to second generation Meteosat and MIPAS

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.356..249c&link_type=abstract

In ESA, Proceedings of an ESA Symposium on Photon Detectors for Space Instrumentation p 249-254 (SEE N94-15025 03-19)

Computer Science

Sound

Design Analysis, Infrared Detectors, Preamplifiers, Spacecraft Instruments, Electrical Engineering, Photodiodes, Requirements

Scientific paper

Design constraints, electronic requirements, and housing requirements for space application of CMT detectors are described. The CMT detector was used in the thermal band of the Infrared Spin Scan Radiometer (ISSR) flown on the U.S. Synchronous Meteorological Satellite in the 1970's. Space application calls for high performance, often in low background flux, and with a diversity of wavelength. This presents design constraints often more demanding than terrestrial applications. However, there is considerable freedom to optimize temperature of operation. Verification of performance requirements calls for both practical demonstrations and modeling. CMT photodiodes are generally best at shorter wavelengths, while photoconductive detectors are generally better at long wavelengths. The diffference in approach and the design trades required in detectors for space application are compared with terrestrial thermal imaging. This is illustrated by consideration of the design trades for the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) detectors and preamplifiers.

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