Preliminary Thermal Design Analysis of Large-Sized Infrared Telescope for SPICA

Details Preliminary Thermal Design Analysis of Large-Sized Infrared Telescope for SPICA Preliminary Thermal Design Analysis of Large-Sized Infrared Telescope for SPICA

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.460..499s&link_type=abstract

The Promise of the Herschel Space Observatory. Eds. G.L. Pilbratt, J. Cernicharo, A.M. Heras, T. Prusti, & R. Harris. ESA-SP 460

Astronomy and Astrophysics

Astronomy

Orbits: S-E L2, Size: 3.5 M Diameter, Missions: Spica, Cryogenics: Mechanical Cryocooler

Scientific paper

The conceptual SPICA mission is ambitiously intended to make high-resolution infrared astronomical observations. The spacecraft is to be launched by the H-IIA rocket into a halo orbit around S-E L2. Long-term observation with a large mirror is realized by advanced cryogenic technologies. The primary mirror is to be cooled to 4.5 K by modern mechanical cryocoolers with the assistance of effective radiative cooling. In this paper, numerical 3-D analyses are carried out to study basic thermal characteristics of the infrared telescope system. As a result, technical requirements for the mission have become clear.

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