软X射线狭缝透射光栅谱仪的研制

介绍了软X射线狭缝透射光栅谱仪的基本原理,得出光谱分辨率的理论计算公式,同时给出狭缝光栅的几何结构和相应的各种参数.在真空系统的实验条件下,对不同物质进行了激光累积打靶实验,得到其相应的软X射线光谱图,由这些光谱图可以回推光谱线,进行激光等离子体的诊断.从所做的实验结果中选出效果较好的光谱图,用显微密度计对其进行扫描,得到光强随距离的变化关系,可以用于标定实验和元素的定量分析.

Soft X-ray slit transmission grating spectrograph

The principle of soft x-ray slit transmission grating spectrograph is introduced in this paper and the resolution calculation formula can be obtained. Simultaneously, the geometry structure and corresponding parameters are given. On the condition of vacuum, some experiments on target shooting for different materials are carried out. The soft x-ray spectrograms of different materials are gained and from these spectrograms, we can conclude the spectroscopy and do some plasma diagnoses. Some good spectrograms are chosen from the result and are scanned by microdensimeter. From it, the relationship between the light intensity and the distance can be gained. It can be used in demarcation experiment and some quantitative analysis on elements.