应用分波法计算低能电子弹性散射截面  

CALCULATING ELASTIC SCATTERING CROSS-SECTION OF LOW ENERGY ELECTRON BY PARTIAL WAVE METHOD

作　　者：谭震宇[1] 裘培勇 何延才[2] 王心磊[2] 

机构地区：[1]山东工业大学电子束研究室 [2]中国科学院上海硅酸盐研究所,上海200040

出　　处：《计算物理》1991年第2期174-182,共9页Chinese Journal of Computational Physics

基　　金：国家自然科学基金

摘　　要：基于Pendry的工作,建立一个应用量子力学分波法计算低能电子弹性散射截面的方法,该方法采取Hartree近似和Hartree-Fock近似相结合,既节省计算机时又能将Pendry的算法延伸到keV以上能区。计算了元素Be、C、Al、Cu等的弹性散射截面,并与Screen-Rutherford截面进行比较。本文方法已用于低能电子散射研究中。文中给出计算程序框图。Based on the work of Pendry, a Partial wave method of combining Hartree approximation with Hartree-Fock approximation is proposed for calculating elastic scattering cross -section of low energy electron. That method not only save computer CPU time, but extend Pendry's to a few keV-eneryg region. The elastic scattering cross-sections of element Be, C, Al, Cu are calculated and compared to Rutherford cross -section. The present method has been applied to investigation of low energy electron scattering in solids. A flow chart of calculating elastic scattering cross -section of low energy electron is given.

关 键 词：分波法 低能电子散射 随机方法求积 

分 类 号：O572.322[理学—粒子物理与原子核物理]