光学精密工程2017，Vol.25Issue(5)：1192-1196,5.DOI:10.3788/OPE.20172505.1192
激光等离子体X射线能谱诊断
X-ray spectral diagnosis for laser plasma
摘要
Abstract
In order to diagnose the inner distribution and movement process of pellet implosion target plasma for laser-driven Inertial Confinement Fusion (ICF) facility, an energy spectrum imaging system based on spherically bent crystal was built.The core element of the system was a spherically bent quartz crystal (1011) with bending radius of 200 mm, of which the lattice structure enabled reflection and the bent surface made focus.The energy spectrum imaging system was performed to first conduct X-ray energy spectrum imaging on SG Ⅲ prototype laser equipment at the Chinese Academy of Engineering Physics (CAEP).Clear X-ray energy spectrum of the high Z element Au plasma was obtained on IP imaging plate.The analysis on the energy spectrum information shows that the energy resolution ratio gained from spherically bent quartz crystal is approximately 1 380, and the error is 3.9% compared with the theory value of energy spectrum resolution model.The result shows that spherically bent quartz crystal has good energy spectrum resolution capacity.关键词
光谱学/球面弯曲晶体/X射线成像/能谱分辨Key words
spectroscopy/spherically bent crystal/X-ray imaging/spectral resolution分类
数理科学引用本文复制引用
刘利锋,肖沙里,钱家渝..激光等离子体X射线能谱诊断[J].光学精密工程,2017,25(5):1192-1196,5.基金项目
国家自然科学基金资助项目(No.10976033) （No.10976033）
