Development of a thin substrate for x-ray telescope
Development of a thin substrate for x-ray telescope
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X射线望远镜薄基板的开发
DOI：
10.1117/12.448500
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Susumu Shioya
中科院分区：
文献类型：
--
作者：
H. Awaki;Y. Tawara;Y. Ogasaka;H. Kunieda;H. Ohmori;H. Honda;Susumu Shioya
沃尔特I型光学系统，用共焦抛物面和双曲面反射器反射X射线两次，通常用于X射线天文学。这两个反射器通常由两个薄基板与圆锥形，以获得一个大的有效面积以上2千电子伏。然而，由于近似于圆锥形状和两个基板的未对准，这种望远镜往往具有较差的成像质量。为了减少成像质量的退化，我们从一个薄衬底形成两个反射器。两个反射器之间的角度的精度由用于形成薄箔基板的心轴的公差确定。在理研，我们使用精密加工方法制造芯轴。在这里，我们提出的结果，我们的初步实验基板形成。
Walter Type-I optics, which reflect X-rays twice with their confocal paraboloidal and hyperboloidal reflectors, have commonly been used in X-ray astronomy. These two reflectors usually consist of two thin substrates with conical shapes in order to obtain a large effective area above 2 keV. However, such telescopes tend to have poorer imaging quality due to approximation to conical shapes and misalignment of the two substrates. In order to reduce the degeneration in the imaging quality, we formed two reflectors from one thin substrate. The accuracy of the angle between two reflectors is determined by the tolerance of the mandrel used to form the thin foil substrate. At RIKEN we make the mandrel using a precision processing method. Here we present the results of our preliminary experiment on substrate forming.