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Proceedings Paper

Diffraction-Limited Performance Of Grazing Incidence Optical Systems
Author(s): James E. Harvey
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Paper Abstract

Diffraction effects of X-ray optical systems are often (justifiably) ignored due to the small wavelength of the X-ray radiation. However, the extremely large obscuration ratio inherent to grazing incidence optical systems produces a profound degradation of the diffraction image over that produced by a moderately obscured aperture of the same diameter. The contradictory requirements of large collecting area and relatively short length of optical elements has tended to result in proposed designs containing many concentric shells with increasingly higher obscuration ratios. In this paper we show that diffraction effects in such systems can significantly affect the achievable optical performance at the low energy (long wavelength) end of the intended operating spectral range. Parametric diffraction-limited performance predictions for both imaging and spectrographic applications will be presented and compared to AXAF performance goals and/or BBXRT fabrication techniques.

Paper Details

Date Published: 21 October 1986
PDF: 8 pages
Proc. SPIE 0640, Grazing Incidence Optics, (21 October 1986); doi: 10.1117/12.964351
Show Author Affiliations
James E. Harvey, Perkin-Elmer Corporation (United States)

Published in SPIE Proceedings Vol. 0640:
Grazing Incidence Optics
John F. Osantowski; Leon P. Van Speybroeck, Editor(s)

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