Thermal and cryogenic aspects of the ISO optical subsystem

Details Thermal and cryogenic aspects of the ISO optical subsystem Thermal and cryogenic aspects of the ISO optical subsystem

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988tcai.rept.....c&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Astronomical Satellites, Cryogenic Equipment, Infrared Astronomy, Infrared Telescopes, European Space Programs, Helium, Optical Equipment, Radiative Heat Transfer

Scientific paper

The ISO optical subsystem is described. It is composed of a cold telescope, a main baffle, and a sunshade. The telescope and the baffle are cooled down to 3 K by means of heat exchange with helium evaporated from a superfluid helium tank. The sunshade is cooled by radiation towards space, using a radiator. The analyses are performed using the modular structure of ESATAN software and subroutines and through numerical interface specification. The current design fulfills the requirements.

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