计算物理 ›› 1993, Vol. 10 ›› Issue (2): 239-245.

• 论文 • 上一篇    下一篇

解相对论Dirac方程计算低能电子弹性散射截面的分波法

谭震宇1, 何延才2   

  1. 1. 山东工业大学电力系电工研究室, 济南 250014;
    2. 中国科学院上海硅酸盐研究所, 上海 200050
  • 收稿日期:1992-03-23 出版日期:1993-06-25 发布日期:1993-06-25
  • 基金资助:
    国家自然科学基金

PARTIAL WAVE METHOD FOR CALCULATING ELASTICSCATTERING CROSS SECTION OF LOW ENERGY ELECTRONBY SOLVING RELATIVISTIC DIRAC EQUATION

Tan Zhenyu1, He Yancai2   

  1. 1. Electrical Engineering Research Department, Electric Power Dept. Shandong PolytechnicUniversity, Jinan 250014;
    2. Shanghai Insititude of Ceramics, Academia Sinica, Shanghai 200050
  • Received:1992-03-23 Online:1993-06-25 Published:1993-06-25

摘要: 本文给出一个基于解相对论Dirac方程计算低能电子弹性散射截面的方法,比较Thomas-Fermi-Dirac(TFD)势及Hartree-Fock(HF)势对散射截面计算的影响,计算了C、Al、Cu、Ag、Au等多种元素在0.01~10keV能量范围的弹性散射截面,比较分析Mott模型、Pendry模型以及屏蔽的Rutherford截面之间的差异。

关键词: 低能电子散射, Monte Carlo模拟, 分波法

Abstract: In this paper, a method for calculating elastic scattering cross section of low energy electron based on solving relativistic Dirac equation is given, the cross sections calculated by applying Thomas-Fermi-Dirac (TFD) potential and Hartree-Fock (HF)potential respectively are compared, the cross sections of elements C, Al, Cu, Ag, Au are calculated, the differences between Mott model. Pendry model and Rutherford formula are also compared and analysed.

Key words: low energy electron, scattering, Monte Carlo simulation, partial wave method