Abstract
The designs of a warm (uncooled) aperture diaphragm in a gas-filled cryostat with a matrix photodetector sensitive in the infrared spectral range are studied numerically and experimentally. It is shown that for the chosen design of a warm aperture diaphragm, a \(384\times 288\) pixel matrix photodetector is cooled by liquid nitrogen to operating temperatures (85 K) in less than 40 seconds, and by a throttle microcooler in 15 seconds, while maintaining the standard sensitivity of photodetectors based on cadmium–mercury–tellurium (CMT) structures.
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Translated by V. A. Alekseev
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Dobrovolsky, P.P., Kremis, I.I., Khryashchev, S.V. et al. Application of a Warm Aperture Diaphragm in Cooled Small-Format Matrix Photodetectors. Optoelectron.Instrument.Proc. 56, 660–664 (2020). https://doi.org/10.3103/S8756699020060072
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DOI: https://doi.org/10.3103/S8756699020060072