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Proceedings Paper

Design optimization for x-ray telescopes
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Paper Abstract

The capability of future x-ray telescopes depends on the quality of their Point Spread Function (PSF) and the size of their field of view. Traditional designs, such as Wolter, and Wolter-Schwarzschild telescopes are stigmatic on the optical axis but their PSF degrades rapidly off-axis. At the optimal focal surface, their PSFs can be significantly improved. We present a simple optimization process for Wolter (W), Wolter-Schwarzschild (WS) and Hyperboloid- Hyperboloid (HH) telescopes that substantially improves the off-axis PSF for either narrow or wide field of view applications. In this paper, we will compare the optical performance of conventional and optimized W-, WS-, and HH-telescopes for a wide range of telescope diameters that can be used to build up future x-ray telescopes.

Paper Details

Date Published: 9 September 2019
PDF: 12 pages
Proc. SPIE 11119, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX, 1111915 (9 September 2019); doi: 10.1117/12.2530049
Show Author Affiliations
Timo T. Saha, NASA Goddard Space Flight Ctr. (United States)
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 11119:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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