Radiatively-cooled telescopes for infrared space astronomy

Details Radiatively-cooled telescopes for infrared space astronomy Radiatively-cooled telescopes for infrared space astronomy

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990liaco..29..375l&link_type=abstract

In ESA, From Ground-Based to Space-Borne Sub-mm Astronomy p 375-379 (SEE N91-21986 13-89)

Astronomy and Astrophysics

Astronomy

Cryogenic Cooling, Infrared Astronomy, Infrared Telescopes, Optical Correction Procedure, Spaceborne Astronomy, Cosmic Background Explorer Satellite, Cryogenics, Heat Transfer, Radiation Detectors

Scientific paper

A class of Passively cooled Orbiting Infrared Observatory Telescopes (POIROT) studied for both in-orbit and lunar use is described. These longlived large aperture facilities use a mixture of radiative and mechanical cooling of optics and detectors. The telescope optics equilibrate at between 30 and 70 K. Although POIROTs are much warmer than cryogenic telescopes, radiation from the telescope is less than that from the astronomical background at wavelengths shortward of 20 to 40 microns.

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