Develop study of reflector mirror for characteristic X-rays emitted at the earth and planetary exospheres.

对地球和行星系外大气层的研究需要独特的光学观测系统，如明亮的光学系统和在多条发射线上的高灵敏度。本研究设计了一种双层多层镀膜反射镜，用于同时观测行星外大气层的主要成分碳离子和氧离子的发射。X射线结构分析的结果，以一年为间隔的时间退化的评价表明，反射镜保持不变的层结构，并预测保持在波长范围内的反射率。

The studies of the earth and planetary exospheres require unique optics for its optical observation, such as a bright optics, and a high sensitivity at several emission lines. In this study a two-tiered multi-layers coated mirror is designed for the simultaneous observation of the Carbon and Oxygen ions emissions, which are the main components of the planetary exospheres. The results of the X-ray structural analysis for the evaluation of the temporal degradation at one-year interval show that the mirror remains unchanged for the layer structure and predict to hold the reflectivity at the range of the wavelengths.