An imaging soft X-ray telescope for Spacelab

Details An imaging soft X-ray telescope for Spacelab An imaging soft X-ray telescope for Spacelab

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977cosp.meetr....c&link_type=abstract

COSPAR, Plenary Meeting, 20th, Tel Aviv, Israel, June 7-18, 1977, Paper. 4 p.

Physics

Grazing Incidence Telescopes, Imaging Techniques, Photosensitivity, Spaceborne Telescopes, Spacelab, X Ray Telescopes, Focal Plane Devices, Hyperbolas, Mirrors, Mission Planning, Parabolic Reflectors, Spectral Resolution

Scientific paper

A grazing-incidence soft X-ray telescope (SXT) of Wolter Type I design is described which has been proposed for use in Spacelab missions. The SXT consists of a four-mirror nested array of confocal paraboloid-hyperboloid elements and is intended to have optimal response in the wavelength range from 6 to 100 A (it also covers the range between 100 and 1000 A). Basic elements of the SXT are reviewed together with a design study of two different hyperboloid lengths. An objective grating for studying point-source spectra is examined, and several focal-plane detectors are discussed, including an image-sensitive proportional counter, a channel electron multiplier array, and a gas scintillation proportional counter. SXT sensitivity is estimated for eight wavelength ranges between 8 and 1100 A.

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