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Proceedings Paper

Infrared detector development for the IASI instrument
Author(s): Michel Royer; Joel Fleury; Dominique Lorans; Alain Pelier
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Paper Abstract

IASI is an infrared atmospheric sounding interferometer devoted to the operational meteorology and to atmospheric studies and is to be installed on board the ESA/EUMETSAT Polar Platform METOP to be launched in 2002. The required operating lifetime is 5 years. SAGEM/SAT has been developing the cold acquisition unit since 1991. The B-phase study was dedicated to the manufacture of the critical components, among which the IR detectors, optics, cold links and packaging. They concern the 3 types of detectors (InSb, HgCdTe-photovoltaic, HgCdTe- photoconductive) and the assembly technologies. The quantum detectors operate in the IR spectrum, so they are cooled at 100 K. The large spectrum (3.4 to 15.5 micrometer) is divided into 3 spectral bands. After manufacturing of these components, a program of test has been conducted and is reported for the evaluation of the technologies. It shows how the detector focal planes can sustain the space environmental conditions of an operational mission. It comprises two main files of test, mechanical evaluation and electrical evaluation. The detector environment has also been considered with aging and radiation tests, performed successfully. The B- phase is now achieved and all these development and testing activities are here reported.

Paper Details

Date Published: 23 October 1997
PDF: 11 pages
Proc. SPIE 3122, Infrared Spaceborne Remote Sensing V, (23 October 1997); doi: 10.1117/12.292696
Show Author Affiliations
Michel Royer, SAGEM SA (France)
Joel Fleury, SAGEM SA (France)
Dominique Lorans, SAGEM SA (France)
Alain Pelier, Ctr. Nataional D'Etudes Spatiales (France)

Published in SPIE Proceedings Vol. 3122:
Infrared Spaceborne Remote Sensing V
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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