| 低能电子在水介质中的输运过程 |
| |
| 引用本文： | 马云志,曹天光,卓益忠. 低能电子在水介质中的输运过程[J]. 中国物理 C, 2003, 27(4): 319-323 |
| |
| 作者姓名： | 马云志 曹天光 卓益忠 |
| |
| 作者单位： | [1]山西师范大学物理系，临汾041004 [2]中国原子能科学研究院，北京102413 |
| |
| 基金项目： | 国家自然科学基金 ( 10 175 0 95 )资助~~ |
| |
| 摘 要： | 考虑到低能电子(能量下限为1eV)在水中输运时的电离,激发,俘获以及超激发引起的自电离等非弹性散射机制,并且考虑到OH+,H+等自由基的产生和分布,运用Monte Carlo方法模拟了电子在水中输运的径迹结构,揭示了电子在低能情况下输运时单条轨道的空间分布结构特点(云团,团点和短径迹等空间分布实体)和包含在大量轨道中的径迹结构的统计性质,并通过对比截止能量取30和1eV两种情况,分析了30eV以下的低能电子的作用.
|
| 关 键 词： | Monte Carlo方法 径迹结构 低能电子 |
| 收稿时间： | 2002-03-19 |
Low Energy Electron Transportation Process in Water Media |
| |
| MA Yun Zhi , CAO Tian Guang ZHUO Yi Zhong . Low Energy Electron Transportation Process in Water Media[J]. High Energy Physics and Nuclear Physics, 2003, 27(4): 319-323 |
| |
| Authors: | MA Yun Zhi CAO Tian Guang ZHUO Yi Zhong |
| |
| Affiliation: | MA Yun Zhi 1,2 CAO Tian Guang 2 ZHUO Yi Zhong 2,3 1 |
| |
| Abstract: | The track structure of low energy electrons (with minimum energy of 1eV) in water as a media has keen simulated with Monte Carlo method, taking into account inelastic processes such as ionization, excitation, attachment and auto ionization caused by super excitation, and the yield and distribution of some free radicals. The local energy deposit entities: spur, blob and short track are obtained in any individual track yielded by our program, and radial dose distribution and range as statistical characteristics of 10,000 tracks are also presented. The role of low energy electrons in track structures is analyzed by contrasting with the characteristics of track structures with 1 and 30eV as cutoff energy. |
| |
| Keywords: | Monte Carlo method track structure low energy electron |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
|
点击此处可从《中国物理 C》下载全文 |
|
