Imaging performance of multilayer x-ray mirrors
Imaging performance of multilayer x-ray mirrors
复制标题
多层X射线镜的成像性能
DOI：
10.1063/1.107522
复制
发表时间：
1992
影响因子：
4
通讯作者：
G. Nystrom
中科院分区：
文献类型：
--
作者：
E. Spiller;J. Wilczynski;D. Stearns;L. Golub;G. Nystrom
我们分析了1991年7月日食当天获得的日冕软x射线图像，发现在1 μm到1 mm的空间周期内，望远镜镜面与完美表面的偏差小于1 A。我们的薄膜沉积技术使我们能够在较大的周期内将误差降低到1 A的水平。因此，我们能够生产出大的（直径超过20厘米）衍射极限分辨率低于0.01弧秒的x射线反射镜。
We analyze soft x‐ray images of the solar corona, obtained on the day of the solar eclipse in July 1991, and find that the deviations of our telescope mirror from the perfect surface are less than 1 A for spatial periods between 1 μm and 1 mm. Our thin film deposition technique allows us to reduce errors over larger periods to the 1 A level. Thus, we are able to produce large (diameter over 20 cm) x‐ray mirrors with diffraction limited resolution below 0.01 arcsec.