Design Optimization for X-Ray Telescopes

Saha, Timo T ; Zhang, William W

关键词: APERTURES;    BALANCING;    CURVATURE;    DESIGN ANALYSIS;    DESIGN OPTIMIZATION;    FIELD OF VIEW;    IMAGE RESOLUTION;    MIRRORS;    OPTICAL PATHS;    SOLAR PHYSICS;    STRUCTURAL DESIGN;    X RAY TELESCOPES;   

RP-ID  :  GSFC-E-DAA-TN70843-1

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

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.