Design optimization for x-ray telescopes

Timo T. Saha; William W. Zhang

doi:10.1117/12.2530049

9 September 2019 Design optimization for x-ray telescopes

Timo T. Saha, William W. Zhang

Author Affiliations +

Proceedings Volume 11119, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX; 1111915 (2019) https://doi.org/10.1117/12.2530049
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

Timo T. Saha and William W. Zhang "Design optimization for x-ray telescopes", Proc. SPIE 11119, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX, 1111915 (9 September 2019); https://doi.org/10.1117/12.2530049

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