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Detectors sensitive to infrared radiation require cooling to very low temperatures because objects near the telescope emit infrared waves.
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SUPPORTED
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Is it true that detectors sensitive to infrared radiation require cooling to very low temperatures because objects near the telescope emit infrared waves?
Yes. Infrared detectors require cryogenic cooling to extremely low temperatures primarily to suppress background thermal emission from surrounding objects and the telescope structure itself.
Verdict: SUPPORTED · 2 sources for, 0 against · Last checked
Evidence for · 2
This paper highlights the necessity of active cryogenic cooling for the mid-infrared instrument detectors on the James Webb Space Telescope to achieve ultra-low temperatures (below 6.7 K) and maintain thermal isolation.
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Shaughnessy, B. M. & Eccleston, P. (2008). Thermal Design of the Mid-Infrared Instrument (MIRI) for the James Webb Space Telescope. doi.org. https://doi.org/10.4271/2008-01-2069
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This paper discusses a proposed lunar infrared telescope array that deploys a large perimeter screen to provide shade and cooling to cryogenic temperatures, necessary for optimal infrared astronomy.
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R, A. (2024). A 600 m<sup>2</sup> array of 6.5 m telescopes at the lunar pole.. doi.org. https://doi.org/10.1098/rsta.2023.0076
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