Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..733..519p&link_type=abstract
Soft X-ray optics and technology; Proceedings of the Meeting, Berlin, Federal Republic of Germany, Dec. 8-11, 1986, Bellingham,
Astronomy and Astrophysics
Astronomy
619
Image Converters, Rosat Mission, Satellite Imagery, Spaceborne Telescopes, X Ray Imagery, X Ray Telescopes, Microchannel Plates, Proportional Counters, Sky Surveys (Astronomy), X Ray Astronomy
Scientific paper
The ROSAT focal plane instrumentation and X-ray image converters are described. The ROSAT telescope is equipped with two different kinds of X-ray image converters: two redundant position sensitive proportional counters (PSPC) and one high resolution imager (HRI), based on microchannel plates. The detectors and part of their front end electronics as well as the gas supply system for the PSPC's are mounted onto a carousel, which allows positioning of the desired imager in the focus of the telescope. All instruments, electronics, mechanisms, etc., are accommodated in the focal plane housing, which is mounted on the optical bench of the mirror system. Compared with previous X-ray satellite missions, the ROSAT all sky survey will be 2 to 3 orders of magnitude deeper. About 100,000 new sources will be discovered and located with an accuracy of 1 arc min or better. In the pointed mode, the ROSAT mirror - PSPC combination sensitivity to point sources is a factor 5 greater than the EINSTEIN imaging proportional counter.
Briel Ulrich G.
Chappell Jon
Hippmann Horst
Kettenring Guenther
Metzner Gerhard
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