计算物理 ›› 2002, Vol. 19 ›› Issue (2): 183-188.

• 论文 • 上一篇    

STIM的计算机模拟

孙民德, 刘波, 石贤峰, 沈皓, 宓詠   

  1. 复旦大学现代物理所, 应用离子束物理实验室(教育部重点实验室), 上海 200433
  • 收稿日期:2000-07-06 修回日期:2001-01-08 出版日期:2002-03-25 发布日期:2002-03-25
  • 作者简介:孙民德(1974),男,山东莱西,硕士生,从事粒子物理与核物理方面的研究.
  • 基金资助:
    国家自然科学基金资助项目

OMPUTER SIMULATION OF STIM

SUN Min-de, LIU Bo, SHI Xian-feng, SHEN Hao, MI Yong   

  1. Applied Ion Beam Physics Laboratory(Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai 200433, P R China
  • Received:2000-07-06 Revised:2001-01-08 Online:2002-03-25 Published:2002-03-25

摘要: 给出了建立计算机模拟STIM实验的理论模型及据此开发的软件.该软件用第4代面向对象的编程语言C ++[1,2]编写而成、可在Windows 9X/NT等操作平台上运行,其界面友好,操作方便,具有良好的与用户交互的功能.该软件可方便地定义探测器的分辨率、扫描空间的分辨率、灰度或彩色调色板、样品的元素组成及其空间分布,可对在真实实验条件中存在的任意旋转角度进行扫描,还能自动完成360°旋转扫描,并将扫描的数据和图像结果存盘.该软件采用了最新的多线程处理技术[3-6],极大地提高了运行速度,并可随时暂停或终止扫描,无须等到扫描结束.同时给出了一些简单样品的模拟计算结果,并进行了分析和讨论.

关键词: STIM, 计算机模拟, 阻止本领, 柱坐标模型, 体积元

Abstract: The theory model of STIM simulation is reported here.A related computer program which runs on Windows 9X/NT is written by the fourth generation Object-Oriented Programming (OOP) language C++.With its friendly interface,some parameters can be easily changed,such as detector resolution,scanning scale and elemental distribution of specimen.Automatically 360° rotation can be achieved and any rotary angle in experimental condition can be simulated.With multithread processing,the program runs faster and can be paused or stopped at any moment.The result of some examples are showed and discussed.

Key words: STIM, computer simulation, stopping power, model of cylinder coordinate, volume element

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