强激光与粒子束2011，Vol.23Issue(4)：1082-1086,5.DOI:10.3788/HPLPB20112304.1082
超热电子产生Kα辐射的参数影响
Parameter effect on Kα radiation generated by hot electrons
摘要
Abstract
In the interaction of a high-intensity laser pulse with a solid target, most of the absorbed laser energy is converted into hot electrons.These electrons transport in solid targets, and in the same time can ionize the K-shell electrons, and produce Kα radiation, which can serve as a backlit source to diagnose dense matters by radiography.To achieve high Kα yield, simulations were done with the ITS code to study the Kα radiation.The effects of hot electron temperature, target thickness, and emission angle on the Kα radiation were investigated.It is found that, for fixed laser power density or hot electron temperature, there is an optimal target thickness, at which the yield of Kα photons reaches the maximum.The simulated results explained the experimental results.关键词
超短超强激光/固体靶/超热电子/Kα特征线Key words
ultrashort ultraintense laser/ solid targets/ hot electrons/ Kα radiation分类
数理科学引用本文复制引用
蔡涓涓,黄文忠,谷渝秋,董克攻,吴玉迟,朱斌,王晓方..超热电子产生Kα辐射的参数影响[J].强激光与粒子束,2011,23(4):1082-1086,5.基金项目
中国工程物理研究院科学与技术重大基金项目(2006Z0202) （2006Z0202）
国家自然科学基金项目(10535030,10876039) （10535030,10876039）
中国科学院创新项目 （）
高温高密度等离子体物理国防科技重点实验室创新基金项目(8901) （8901）
