强激光与粒子束2022，Vol.34Issue(6)：110-117,8.DOI:10.11884/HPLPB202234.210548
双自由度诊断高能电子透镜成像技术
Dual degrees of freedom diagnosis with high energy electron lens radiography
摘要
Abstract
The evolution of electromagnetic field and fluid is important in the research of high energy density physics, controlled nuclear fusion, and laboratory astrophysics. But in experiment, it is difficult to get the density and electromagnetic field distribution simultaneously. Based on high energy electron lens radiography, this paper proposes dual degrees of freedom diagnosis (DDFD) by constructing areal density difference. Combining the Monte-Carlo simulation and beam optics analysis, the feasibility of this method when the diagnosed system includes relatively strong electromagnetic field has been validated. Besides, changing the aperture as a ring can effectively improve the resolution in low E/B field and low areal density situation. The simulation results indicate that this method works well. Considering the characters of electron beams, this method is quite suitable for the electromagnetic fluid diagnosis.关键词
高能电子透镜成像/场积分强度测量/面密度诊断/双自由度诊断/超快成像技术Key words
high energy electron lens radiography/E/B field diagnosis/areal density measuring/dual degrees of freedom diagnosis/ultrafast image分类
数理科学引用本文复制引用
肖家浩,杜应超,李豪卿,赵永涛,盛亮..双自由度诊断高能电子透镜成像技术[J].强激光与粒子束,2022,34(6):110-117,8.基金项目
National Key R&D Program of China(2019YFA0404900) （2019YFA0404900）
