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Proceedings Paper

Calculated Performance Of A Wolter Type I X-Ray Telescope Coated By Multilayers
Author(s): R. C. Catura; W. A. Brown; E. G. Joki; R. A. Nobles
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Paper Abstract

Deposition of multilayered diffraction coatings on the reflecting surfaces of a Wolter type I X-ray telescope offers the potential of using Bragg reflection to achieve enhanced effective area in selected high energy bandpasses. The structure of a gold-carbon multilayer has been optimized for study of 1.8Å iron-line emission with an X-ray telescope designed for observations from Spacelab. The response of this mirror assembly has been calculated as a function of X-ray energy and the resulting effective area is enhanced by a factor of 10 and peaks at 160 cm2 with a bandpass of 0.4 keV FWHM. This enhanced response is sufficient to allow study of the angular distribution of iron-line emission from the 20 brightest cluster X-ray sources during a 7 day Spacelab mission. The possibility of achieving X-ray imaging in narrow bandpasses at even higher energies has been investigated. We conclude that it should be possible to achieve effective areas of approximately 5 cm in bandpasses ≈ 1 keV wide for energies in the 15-25 keV range, a spectral region of much importance during the impulsive phase of solar flares.

Paper Details

Date Published: 24 March 1982
PDF: 9 pages
Proc. SPIE 0316, High Resolution Soft X-Ray Optics, (24 March 1982); doi: 10.1117/12.933149
Show Author Affiliations
R. C. Catura, Lockheed Palo Alto Research Laboratory (United States)
W. A. Brown, Lockheed Palo Alto Research Laboratory (United States)
E. G. Joki, Lockheed Palo Alto Research Laboratory (United States)
R. A. Nobles, Lockheed Palo Alto Research Laboratory (United States)

Published in SPIE Proceedings Vol. 0316:
High Resolution Soft X-Ray Optics
Eberhard Adolf Spiller, Editor(s)

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