利用凸晶摄谱仪获取Z箍缩等离子体X辐射单色图像  

Utilization of convex crystal spectrograph to obtain monochromatic X-ray images of Z-pinch plasmas

作　　者：叶凡[1] 薛飞彪 郭存 李正宏 杨建伦 徐荣昆 章法强 金永杰[2] 

机构地区：[1]核物理与化学研究所,绵阳621900 [2]清华大学工程物理系,北京100084

出　　处：《物理学报》2008年第3期1792-1795,共4页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10035030)资助的课题~~

摘　　要：考虑晶体摇摆曲线的影响,用光线追迹方法讨论了凸晶摄谱仪的能谱分辨率、单色图像径向空间分辨本领以及晶体与X射线源之间的距离对它们的影响.根据讨论建立了云母凸晶摄谱仪,在"强光一号"装置上对系统进行了成功地测试,获得铝丝阵负载Z箍缩等离子体X辐射单色图像.时间积分图像表明,Z箍缩Al等离子体K壳层Lyα和Heβ线辐射来自等离子体核心直径约2.3mm的区域.The spectral resolution, spatial resolution of monochromatic X-ray images of a spectrograph based on convex crystal were discussed by ray tracing calculations taking inlo consideration the effect of rocking curve of the crystal. A mica convex crystal spectrograph was designed and then tested successfully on ＂QiangGuang-1＂ pulsed power facility. Time integrated monochromatic X-ray images of Al Z-pinch plasmas showed the X-ray line emissions of K-shell came from the core region of a diameter of about 2.3 mm.

关 键 词：光线追迹 凸晶摄谱仪 Z箍缩等离子体X辐射 单色图像 

分 类 号：O434.1[机械工程—光学工程]