Mosaic Infrared Sensor for Space Astronomy (MIRSSA)

Astronomy and Astrophysics – Astronomy

Scientific paper

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Arrays, Infrared Astronomy, Infrared Detectors, Mercury Cadmium Tellurides, Mosaics, Spaceborne Astronomy, Focal Plane Devices, Impedance Measurement, Line Spectra, Photovoltaic Cells, Signal Detectors, Spectral Bands, Temperature Measurement

Scientific paper

The development of mosaic infrared detector/focal plane arrays for space astronomy is reported. The Mosaic IR Sensor for Space Astronomy (MIRSSA) Program is an effort to develop PV HgCdTe detector arrays with the spectral response of up to 5 micron and silicon CCDs for low temperature applications. Desired background-limited performance (BLIP) for space applications requires an extremely high R sub A product which can be achieved by selecting the detector materials and the operating temperature. The parameters were determined by measurement of HgCdTe PV detector arrays at various temperatures in the SW and MW spectral bands. It is demonstrated that high performance PV HgCdTe detectors can be fabricated for low temperature applications.

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