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Glancing Incidence Optics for X-Ray and Ultraviolet Astronomy

Published online by Cambridge University Press:  14 August 2015

J. H. Underwood ,
W. M. Neupert  and
R. B. Hoover
J. H. Underwood
Affiliation:
Solar Plasmas Branch, NASA-Goddard Space Flight Center, Greenbelt, Md., U.S.A.
W. M. Neupert
Affiliation:
Solar Plasmas Branch, NASA-Goddard Space Flight Center, Greenbelt, Md., U.S.A.
R. B. Hoover
Affiliation:
Astronomics Laboratory, NASA-Marshall Space Flight Center, Huntsville, Ala., U.S.A.

Abstract

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Glancing incidence telescopes of the kind first described by Wolter have now been physically realized, so that it is now possible to obtain high resolution images of celestial objects at all wavelengths greater than about 3 Å. In this paper we shall describe two such instruments: the GSFC-MSFC X-ray telescope for the Apollo telescope mount uses Wolter type 1 optics and is capable of forming images of the sun in the 8–70 Å region with spatial resolution of the order of one arc second. The GSFC extreme ultraviolet spectroheliometer for OSO H uses type 2 optics and can obtain images of the Sun in spectral lines in the 170–400 Å region with a spatial resolution of about ten arc seconds. Theoretical (ray trace) and laboratory data on these systems will be presented.

Type
Part II: X-ray Astonomy
Information
Symposium - International Astronomical Union , Volume 41: New Technique in Space Astronomy , 1971 , pp. 192 - 204
Copyright
Copyright © Reidel 1971