基于等离子体X射线多通道弯晶谱仪的设计与研究  

Structural Optimizatin Design of Key Part of High Resolution Transmission Grating Spectrograph Based on Finite Element Method

作　　者：谢志江[1] 孟东东[1] 杨国洪[2] 刘小波[1] 宋代平[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]中国工程物理研究院激光聚变研究中心,绵阳621900

出　　处：《世界科技研究与发展》2012年第1期13-15,共3页World Sci-Tech R&D

基　　金：国家高技术研究发展计划;国家自然科学基金(51105392);重庆市自然科学基金(cstcjjA70001);中央高校基本科研业务费(CDJZR10110002和CDJRC10110005)资助项目

摘　　要：为诊断0.165～0.775 nm和0.014～0.165 nm范围的软硬X射线,研制了一台多通道(四个反射通道和一个透射通道)柱面晶体谱仪。利用光电检测单元获得了由Qz、LiF和Ge制成的多种不同晶体取向弯晶衍射等离子X射线谱相。谱仪采用离线标定和在线复位技术,可降低由于光源不准引起的光谱偏差,已应用在激光装置的诊断实验上,达到了惯性约束核聚变(ICF)实验要求。To diagnose X-ray of wavelength in 0. 165 - 0. 775 nm and 0. 014 - 0. 165 nm region, a cylinder curved crystal sPectrometer has been developed, which have have several channels （ four reflection channels and a transmission channel）. Photoelectric detection unit is used to obtain photographys of spectra,which come from the diffraction of many different crystal wafer orientation bending crystal,made of Qz,LiF and Ge elements. According to the technology of offline calibration and online reduction,spectral bias caused by source can be reduced. The spectrometer has already been used in the experiment on the diagnosis of laser device, achieving the experimental requirements of inertial con- finement fusion （ICF）.

关 键 词：弯晶谱仪 等离子体X射线 惯性约束核聚变 结构设计 

分 类 号：TL817[核科学技术—核技术及应用]