带超环面镜的掠入射光栅谱仪测试系统响应特性模拟分析

指出了文献[1]在物理概念上和公式推导中的错误,并在订正了这些错误之后,考虑了实际的激光等离子体光源的几何尺度和线状等离子体的安排,对在复合泵浦X激光增益实验中所使用的带超环面镜X光中继元件的掠入射光栅光谱仪系统进行了全面的模拟计算.结果表明,作者所使用的带超环面镜的X光增益测试系统,其因离焦而导致的非线性效应是完全可以忽略的,系统的空间分辨能力的下降也是非常小的,从而否定了文献[1]中的结论,表明作者在X激光增益测量实验中所使用的带超环面镜X光中继元件的掠入射光栅光谱仪系统是完全可靠的.

Simulation and analysis of characteristics of grazing incidence grating spectrograph with pre-toroidal mirrors

This paper pointed some errors in physical concepts and formula deduction in the reference [1]. Correcting those errors and considering the real experimental geometry and the scales of laser plasma sources, we have performed a systematic simulation for the characteristics of the grazing incidence grating spectrograph with toroidal mirror X-ray relay optics which has been used in X-ray laser experiments for gain measurements. It is shown that the nonlinear effects of the spectrograph in optical energy transportation caused by defocusing is negligible, and so is the related defect in spatial resolution of the spectrograph.