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核聚变与等离子体物理 ›› 2008, Vol. 28 ›› Issue (4): 314-317.

• 等离子体物理学 • 上一篇    下一篇

非理想氩等离子体电子密度和平均离化度理论研究

姜明,周以苏,王彩霞,黄华   

  1. (1. 西南民族大学电气信息工程学院,成都 610041;2. 清华大学计算机科学与技术系,北京 100084; 3. 北京信息工程学院基础部,北京 l00101)
  • 收稿日期:2008-03-07 修回日期:2008-09-21 出版日期:2008-12-15 发布日期:2011-01-10
  • 作者简介:姜明(1956-),女,山东乳山人,教授,博士,主要从事原子分子和等离子体物理研究。
  • 基金资助:

    四川省应用基础项目(06JY0444);西南民族大学重点项目(06NZ002)

Study on electron density and average degree of ionization for the non-ideal argon plasmas

JING Ming1, ZHOU Yi-su2, WANG Cai-xia3, HUANG Hua1   

  1. (1. College of Electrical Information Engineering, Southwest University for Nationalities, Chengdu 610041; 2. Department of Computer Science and Technology, Tsinghua University, Beijing l00084;3. Beijing Information Technology Institute of the Department of Basic Courses, Beijing l00101)
  • Received:2008-03-07 Revised:2008-09-21 Online:2008-12-15 Published:2011-01-10

摘要:

用SHM模型计算了非理想Ar等离子体在温度T为2.0eV、密度ρ为0.01~0.5g•cm-3的电子密度和平均离化度。研究了非理想Ar等离子体电子密度和平均离化度随温度、密度的变化规律,得到了在温度T为2.0eV、密度ρ为0.01~0.5g•cm-3非理想Ar等离子体的平均离化度小于0.5的结果。这表明非理想Ar等离子体的平均离化度非常低,大量的Ar仍然处于非电离状态。计算的结果还显示了平均离化度随等离子体密度ρ增加而减小的特征,并分析了减小的原因。

关键词: 非理想Ar等离子体, 电子密度, 平均离化度

Abstract:

Electron density and average degree of ionization of the non-ideal argon plasmas under different plasma temperature and density are calculated by using SHM model. It comes to a conclusion that the average degree of ionization is less than 0.5 for the non-ideal argon plasmas at temperature T≈ 2.0eV and plasma density ρ≈ (0.01~0.5)g•cm-3, and the average degree of ionization is reduced with the increase of plasma density ρ. This indicates that the non-ideal argon plasma has a very low degree of ionization so that most argon has not been ionized. In addition, the discussion on the ionization decrease with the increase of plasma density ρ is given.

Key words: The non-ideal argon plasmas, Electron density, Average degree of ionization

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