| 一个改进的Love电子能量损失方程 |
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| 引用本文： | 谭震宇,何延才.一个改进的Love电子能量损失方程[J].应用科学学报,2000,18(4):331-334. |
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| 作者姓名： | 谭震宇 何延才 |
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| 作者单位： | 1. 山东工业大学电力学院, 山东济南 250061;2. 中国科学院上海硅酸盐研究所, 上海 200050 |
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| 基金项目： | 国家自然科学基金资助项目!（59471068），山东省高校中青年学科带头人基金资助项目!（鲁教科199431） |
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| 摘 要： | 给出一个改进的Love电子能量损失方程——ML方程,该方程既保持了Love方程可积分得到Bethe路径解析式特点,能量较低时又能较好地描述电子能量损失.用ML及Love方程对Al、Ag、Au的电子阻止本领与电子作用区作了计算比较.基于Mott截面以及ML与Love方程,用Monte Carlo方法模拟了E≤5keV的低能电子在Al、Ag、Au中的散射,计算的电子背散射系数表明,改进后的ML方程计算结果与实验符合较好。
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| 关 键 词： | Monte Carlo方法 阻止本领 低能电子散射 |
| 收稿时间： | 1999-06-25 |
| 修稿时间： | 2000-03-15 |
An Improved Love Equation of Electron Energy Loss |
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| TAN Zhen-yu,HE Yan-cai.An Improved Love Equation of Electron Energy Loss[J].Journal of Applied Sciences,2000,18(4):331-334. |
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| Authors: | TAN Zhen-yu HE Yan-cai |
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| Institution: | 1. School of Electric Power, Shandong University of Technology, Jinan 250061, China;2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
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| Abstract: | An improved Love equation (ML equation) of electron energy loss is presented. It not only retains love equation's analytical characteristic of deriving Bethe path by integration, but can also better describe the energy loss of electron in low energy region. With ML equation, the stopping power and range for electron in Al, Ag, An are calculated and compared with those from Love equation. By using Monte Carlo method and based on Mott cross section for elastic scattering of electron and ML or Love equation for energy loss of electron respectively, the scattering process of low energy electrons with energy E ≤ 5keV in solids is simulated. The calculated electron backscattering coefficients shows that the calculated results based on the ML equation are in agreement with experiments. |
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| Keywords: | stopping power Monte Carlo method low energy electron scattering |
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