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24 March 1982 Calculated Performance Of A Wolter Type I X-Ray Telescope Coated By Multilayers
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Proceedings Volume 0316, High Resolution Soft X-Ray Optics; (1982) https://doi.org/10.1117/12.933149
Event: 1981 Brookhaven Conferences, 1981, Upton, United States
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.
© (1982) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. C. Catura, W. A. Brown, E. G. Joki, and R. A. Nobles "Calculated Performance Of A Wolter Type I X-Ray Telescope Coated By Multilayers", Proc. SPIE 0316, High Resolution Soft X-Ray Optics, (24 March 1982); https://doi.org/10.1117/12.933149
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