Design optimization for x-ray telescopes

被引：2
|
作者：
Saha, Timo T. [1 ]
Zhang, William W. [1 ]
机构：
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
来源：
OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY IX | 2019年 / 11119卷
关键词：
Optical design; x-ray optics; x-ray mirrors; wide-field x-ray telescopes; GRAZING-INCIDENCE OPTICS;
D O I：
10.1117/12.2530049
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
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.
引用
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页数：12
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