Status Of The Development Of A Thin Foil High Throughput X-Ray Telescope For The Soviet Spectrum X-Gamma Mission

NJ WESTERGAARD, BP BYRNAK, Finn Erland Christensen, P GRUNDSOE, Allan Hornstrup, S HENRICHSEN, U HENRIKSEN, E JESPERSEN, Hans Ulrik Nørgaard-Nielsen, Josef Polny, HW SCHNOPPER, P ORUP

Research output: Contribution to journalConference articleResearchpeer-review


The first satellite in a planned series of Soviet X- and gamma ray satellites will be equipped with two high throughput telescopes to be delivered by the Danish Space Research Institute. The thin foil tech-nology was originally developed by P. Serlemitsos at Goddard Space Flight Center, U.S.A. Our modification of this design is optimized with respect to high energy throughput of the telescope. The mechanical design and the status of the surface preparation technologies are described. Various X-ray and optical test facilities for the measurement of surface roughness, "orange peel", and figure errors are described. An optical parallel beam has been established and results from the first mounted mirrors are discussed. The design goal is an angular resolution of 2 arcminutes (HEW). The first results seem to indicate that this is feasible and the possibility of going down to 1.5 arcminutes exits.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication statusPublished - 1989
Event33rd Annual Technical Symposium: X-Ray/EUV Optics for Astronomy and Microscopy - San Diego, United States
Duration: 7 Aug 198911 Aug 1989
Conference number: 33


Conference33rd Annual Technical Symposium
Country/TerritoryUnited States
CitySan Diego


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