Computer Science – Performance
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990opten..29..649s&link_type=abstract
Optical Engineering (ISSN 0091-3286), vol. 29, June 1990, p. 649-657. Research supported by SERC.
Computer Science
Performance
43
Grazing Incidence Telescopes, Panoramic Cameras, Rosat Mission, Wide Angle Lenses, X Ray Telescopes, Aluminum, Microchannel Plates, Mirrors, Optical Filters, Spatial Resolution
Scientific paper
The Rosat satellite, due to be launched in June 1990, carries a payload of two coaligned imaging telescopes: the German X-Ray Telescope (XRT), which operates in the soft X-ray band (0.1 to 2 keV or 6 to 100 A), and the UK Wide Field Camera (WFC), which operates in the XUV band (0.02 to 0.2 keV or 60 to 600 A). Rosat will perform two main tasks in its anticipated two- to four-year lifetime: a six-month all-sky survey in the soft X-ray and XUV bands, followed by a program of pointed observations for detailed studies of thousands of individual targets. This paper reviews the design and performance of the WFC. The instrument is a grazing incidence telescope comprising a set of three nested, Wolter-Schwarzschild type I, gold-coated aluminum mirrors with a microchannel plate detector at their common focus. Thin plastic and metal film filters define the wavelength passbands.
Barstow Martin Adrian
Pye John P.
Sims Mark R.
Wells Alan A.
Willingale Richard
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