Performance Measurements On A 32X32 InSb-CID Detector Array For Astronomical Observations

D Tiphene; F Lacombe; D Rouan

doi:10.1117/12.943555

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3 May 1988 Performance Measurements On A 32X32 InSb-CID Detector Array For Astronomical Observations

D Tiphene, F Lacombe, D Rouan

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Proceedings Volume 0865, Focal Plane Arrays: Technology and Applications; (1988) https://doi.org/10.1117/12.943555
Event: 1987 Symposium on the Technologies for Optoelectronics, 1987, Cannes, France

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.

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D Tiphene, F Lacombe, and D Rouan "Performance Measurements On A 32X32 InSb-CID Detector Array For Astronomical Observations", Proc. SPIE 0865, Focal Plane Arrays: Technology and Applications, (3 May 1988); https://doi.org/10.1117/12.943555

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