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Proceedings Paper

Performance Measurements On A 32X32 InSb-CID Detector Array For Astronomical Observations
Author(s): D Tiphene; F Lacombe; D Rouan
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Paper Abstract

The use at liquid helium temperature of a InSb-CID detector array differs significantly from opera-tion at conditions usually adopted by the manufacturer (77K). In particular, the dark current behaviour hugely changes between the two temperatures. Only the tunnel current, independant of temperature conditions, is still active at 4.2K while the thermal-family currents vanish. We have studied the tunnel current of one InSb-MIS detector to determine its suitability to the low background conditions that will be met in the space experiment ISO. The search for the maximum integration time and the best quantum efficiency, the constraint about the photonic response linearity (especially at low photon flux), and the reduction of the readout noise constitute the main points of this study. Moreover, laboratory measurements showed secondary effects due to the detector (lag) or to the wiring (crosstalk). The CID array reactions to high energy radiations (Gamma rays) are finally discussed.

Paper Details

Date Published: 3 May 1988
PDF: 7 pages
Proc. SPIE 0865, Focal Plane Arrays: Technology and Applications, (3 May 1988); doi: 10.1117/12.943555
Show Author Affiliations
D Tiphene, Observatoire PARIS-MEUDON (France)
F Lacombe, Observatoire PARIS-MEUDON (France)
D Rouan, Observatoire PARIS-MEUDON (France)

Published in SPIE Proceedings Vol. 0865:
Focal Plane Arrays: Technology and Applications
Jean-Pierre Chatard, Editor(s)

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