Nb,Ag原子的K壳层和L壳层电离截面的理论计算  

Computation of electron impact K-shell and L-shell ionization cross sections of Nb and Ag atoms

作　　者：何彪[1] 易有根[1] 江少恩[2] 郑志坚[2] HE Biao;YI You-Gen;JIANG Shao-En;ZHENG Zhi-Jian(College of Physics and Electronics,Central South University,Changsha 410083,China;State Key Laboratory of High Temperature and Density Plasma Physics,China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]中南大学物理与电子学院,长沙410083 [2]中国工程物理研究院高密度等离子体物理国家重点实验室,绵阳621900

出　　处：《原子与分子物理学报》2021年第4期99-102,共4页Journal of Atomic and Molecular Physics

基　　金：国家重点研发计划(2017YFE0300400)。

摘　　要：电子离子碰撞电离截面是模拟激光等离子体的超热电子的能谱和产额的主要过程之一.基于相对论性的电子离子碰撞的K壳层电离截面理论,计算了Nb、Ag的K壳层和L壳层电子碰撞电离截面,结果和最近的文献实验数值和其它理论数值进行了比较,计算结果比其它模型更加准确,与最近的实验结果也吻合较好,该结果可用来模拟激光等离子体的超热电子能谱和产额.Cross sections for the ionization of atomic inner shell by electron and/or ion impact are one of the mostly process for simulating the hot-electron energy spectrum and yield. Based on the theory of K-shell ionization cross section by electron and/or ion impact in the relativistic condition, the K-shell and L-shell ionization cross sections of Nb and Ag by electron impact have been computed. Compared with the recently experiment and theory results, this numerical results are shown to agree with experimental data and more exact than other theory model, which can be used to simulate the hot-electron energy spectrum and yield of laser-plasma.

关 键 词：K壳层 L壳层 电离截面 相对论效应 

分 类 号：O65[理学—分析化学]