一个离子输运两群模型计算程序的实现与应用

计算物理 ›› 1991, Vol. 8 ›› Issue (1): 47-56.

一个离子输运两群模型计算程序的实现与应用

王世明, 白荣生, 朱旗, 罗正明

四川大学原子核科学技术研究所, 成都 610064

收稿日期:1988-01-04 修回日期:1990-12-09 出版日期:1991-03-25 发布日期:1991-03-25

A NUMERICAL CALCULATE PROGRAM REALIZATION FOR BIPARTITION MODEL OF ION TRANSPORT AND ITS APPLICATION

Wang Shiming, Bai Rongsheng, Zhu Qi, Luo Zhengming

Institute of Nuclear Science and Technology, Sichuan University 610064

Received:1988-01-04 Revised:1990-12-09 Online:1991-03-25 Published:1991-03-25

摘要/Abstract

摘要： 本文叙述具有给定动能的离子在固体中传输及引起原子碰撞过程的数值计算程序,包括原理、物理模型、计算步骤和适用范围。在本程序计算中采用了最新的核散射截面,用三次B-样条插值技巧,从而提高运算速度和计算精度。用本程序计算了不同能量的离子,入射到半无限固体中(可为单元素或复合元素)的射程分布、能量沉积、辐射损伤和反射系数等重要输运量。

关键词: 原子碰撞, 球谐函数, Lax-Wendroff差分格式

Abstract: A numerical Program is described. It can display the transport process of ions and the correspond cascade process in solids. It includes principle, physical models, calculation procedure and the range used. A newest nuclear scattering cross-section is used in this program. The Cub-Spline interpolation method is also used in order to raise calculation speed and precision. Some calculation results are given such as the range distribution, energy deposition, radiation damage distribution in semi-infinite medium by included ions with different energy.

Key words: atomic collision, harmonic function, Lax-Wendroff differencing scheme

王世明, 白荣生, 朱旗, 罗正明. 一个离子输运两群模型计算程序的实现与应用[J]. 计算物理, 1991, 8(1): 47-56.

Wang Shiming, Bai Rongsheng, Zhu Qi, Luo Zhengming. A NUMERICAL CALCULATE PROGRAM REALIZATION FOR BIPARTITION MODEL OF ION TRANSPORT AND ITS APPLICATION[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1991, 8(1): 47-56.

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