等离子体环境中原子势模型的概述  

An Overview of Atomic Potential Model in Plasma Environment

作　　者：李向富[1] 李高清[1] 

机构地区：[1]陇东学院电气工程学院,甘肃庆阳745000

出　　处：《陇东学院学报》2016年第1期5-8,共4页Journal of Longdong University

摘　　要：等离子体环境中常用的原子势模型主要包括德拜模型、托马斯—费米模型、自洽场离子球模型三种基本势模型。德拜模型适用于高温低密度弱耦合等离子体;托马斯—费米模型适用于不同温度和高密度的强耦合等离子体,但不能用于描述原子壳层结构;自洽场离子球模型也适用于不同温度和高密度的强耦合等离子体,考虑了原子的壳层结构,但对离子之间的关联效应考虑得不够。The atomic potential model in the plasma environment can be categorized into three basic types including Debye model,Thomas-Fermi model,and Self-consistent-field ion sphere model. Debye model is usually used to describe the weak coupling plasma with high temperature and low density. Thomas-Fermi model is suitable for describing the strong coupling plasma with different temperature and high density but not for that of the shell structure of atom. Self- consistent-field ion sphere model can also be applied to describe the strong coupling plasma with different temperature and high density. It takes the shell structure of atom into consideration but not enough of the correlation effect between ions.

关 键 词：等离子体 德拜模型 托马斯—费米模型 自洽场离子球模型 

分 类 号：O53[理学—等离子体物理]