Ghost Image Behavior In Wolter Type I X-Ray Telescopes

Edward C. Moran; James E. Harvey

doi:10.1117/12.942189

9 August 1988 Ghost Image Behavior In Wolter Type I X-Ray Telescopes

Edward C. Moran, James E. Harvey

Proceedings Volume 0830, Grazing Incidence Optics for Astronomical and Laboratory Applications; (1988) https://doi.org/10.1117/12.942189
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

In Wolter type I grazing incidence telescopes, ghost images result whenever unreflected x rays or singly reflected x rays pass through the telescope and impinge on the focal plane. These ghost images degrade image quality and can be eliminated by appropriately positioned stops and baffles. However, conflicting demands can be placed on an aperture design by requirements for field of view, vignetting, and ghost image control. These problems are particularly severe for high energy x-ray telescopes which require very small grazing angles of incidence. We have developed and used analytical and numerical tools to perform parametric analyses of ghost image behavior and to obtain an aperture plate design capability that can be utilized to satisfy specific ghost image requirements.

Citation Download Citation

Edward C. Moran and James E. Harvey "Ghost Image Behavior In Wolter Type I X-Ray Telescopes", Proc. SPIE 0830, Grazing Incidence Optics for Astronomical and Laboratory Applications, (9 August 1988); https://doi.org/10.1117/12.942189

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