Thermal design features of Rosat X-ray telescope

Details Thermal design features of Rosat X-ray telescope Thermal design features of Rosat X-ray telescope

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983esasp.200..399b&link_type=abstract

In ESA Environ. and Thermal Control Systems for Space Vehicles p 399-406 (SEE N84-19396 10-18)

Computer Science

Satellite Design, Satellite-Borne Instruments, Temperature Control, X Ray Telescopes, Baffles, Computer Aided Design, Paraboloid Mirrors, Temperature Effects, Temperature Gradients

Scientific paper

Thermal design of the ROSAT 80 cm Wolter telescope is discussed, and computer aided design techniques used in thermal analysis are described. The high resolution requirements necessitates a special temperature stabilization system in order to avoid uncceptable thermal distortions. In order to provide minimum temperature gradients and minimum temperature fluctuations, a thermal baffle, a heating system for mirror and optical bench, and an insulation system were designed. Radiative heat exchange within the specular reflecting mirror system and the propagation of heat flux within the thermal baffle are considered. Specular reflectance of the baffle lamellas increases heat losses. Thus for the baffle system a diffuse low emittance coating on the lamella surfaces is advocated.

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