Title

Diffraction Effects In Grazing Incidence X-Ray Telescopes

Abstract

There is increasing interest worldwide in the use of tightly nested grazing incidence imaging mirrors for high-throughput x-ray telescopes. 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 profound degradation of the diffraction image over that produced by a moderately obscured aperture of the same diameter. Although many of the intended applications are moderate-resolution spectroscopic instruments, there is always a desire for high-resolution imaging as well. In this paper we show that diffraction effects can dominate other potential error sources at the low-energy (long-wavelength) end of the intended operating spectral range of some existing or planned x-ray telescopes. Parametric performance predictions are presented and compared with x-ray astronomy performance goals. © 1991 IOS Press. All rights reserved.

Publication Date

1-1-1991

Publication Title

Journal of X-Ray Science and Technology

Volume

3

Issue

1

Number of Pages

68-76

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.3233/XST-1991-3106

Socpus ID

0037504933 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0037504933

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