21 September 2012 A detector technology investigation for the Exoplanet Characterisation Observatory (EChO)
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Abstract
The Exoplanet Characterisation Observatory (EChO) is currently being studied by ESA as a medium class mis­ sion to be launched in the third decade of the new millennium. EChO requires exquisite detector sensitivity and stability under low- background conditions. The EChO longest wavelength instrument covers the very long wave­ length (VLWIR) spectral band from 10 to 16 µm and HgCdTe (MCT) photoconductors constitute a promising technology. Currently available MCT detectors have been developed for high-background and high-temperature operations and little is known about the performance achievable when the same detectors are operated at cryo­ genic temperatures, between 77 K and 4 K. Here we report on the optical and dark measurements obtained on VLWIR MCT photoconductors from European manufacturers at cryogenic temperatures.
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Enzo Pascale, Enzo Pascale, Stuart Forder, Stuart Forder, Peter Knowles, Peter Knowles, Rashmi V. Sudiwala, Rashmi V. Sudiwala, Bruce Swinyard, Bruce Swinyard, Marcell Tessenyi, Marcell Tessenyi, } "A detector technology investigation for the Exoplanet Characterisation Observatory (EChO)", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84422Z (21 September 2012); doi: 10.1117/12.927207; https://doi.org/10.1117/12.927207
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