X-ray telescope onboard Astro-E: optical design and fabrication of thin foil mirrors.
X-ray telescope onboard Astro-E: optical design and fabrication of thin foil mirrors.
复制标题
Astro-E 上的 X 射线望远镜：薄箔镜的光学设计和制造。
DOI：
10.1364/ao.40.000553
复制
发表时间：
2001
期刊：
影响因子：
1.9
通讯作者：
Kai
中科院分区：
文献类型：
--
作者：
H. Kunieda;M. Ishida;Takao Endo;Yasuhiro Hidaka;H. Honda;K. Imamura;J. Ishida;Masamichi Maeda;K. Misaki;R. Shibata;A. Furuzawa;Kazutoshi Haga;Y. Ogasaka;T. Okajima;Y. Tawara;Yuichi Terashima;Manabu Watanabe;K. Yamashita;T. Yoshioka;P. Serlemitsos;Y. Soong;Kai
嵌套薄箔镜X射线望远镜是为日本第五颗X射线天文卫星Astro-E研制的。虽然发射不成功，但总结了设计概念、制造和对准过程。Astro-E XRT的主要目的是高效收集高达10 keV的硬X射线，并在有限的重量和体积内提供中等空间分辨率。与前一个使命宇宙学和天体物理学高级卫星（ASCA）相比，4.5-4.75米的焦距稍长，40厘米的直径更大，用5台望远镜在8千电子伏下产生1750平方厘米的有效面积。通过引入复制工艺，图像质量也提高到2弧最小半焦度直径。五架望远镜中的一架的反射镜使用铂而不是金，以增强高能响应。并对制作和对准过程进行了总结。为Astro-E II使命和其他未来的飞行任务提出了几种改进方法。飞行前校准结果将在即将出版的第二篇论文中描述，图像的详细研究将在第三篇论文中介绍。
X-ray telescopes (XRT's) of nested thin foil mirrors are developed for Astro-E, the fifth Japanese x-ray astronomy satellite. Although the launch was not successful, the design concept, fabrication, and alignment procedure are summarized. The main purpose of the Astro-E XRT is to collect hard x rays up to 10 keV with high efficiency and to provide medium spatial resolution in limited weight and volume. Compared with the previous mission, Advanced Satellite for Cosmology and Astrophysics (ASCA), a slightly longer focal length of 4.5-4.75 m and a larger diameter of 40 cm yields an effective area of 1750 cm2 at 8 keV with five telescopes. The image quality is also improved to 2-arc min half-power diameter by introduction of a replication process. Platinum is used instead of gold for the reflectors of one of the five telescopes to enhance the high-energy response. The fabrication and alignment procedure is also summarized. Several methods for improvement are suggested for the reflight Astro-E II mission and for other future missions. Preflight calibration results will be described in a forthcoming second paper, and a detailed study of images will be presented in a third paper.