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State equation of inert plasma

Tian Yang-Meng Wang Cai-Xia Cheng Xin-Lu Yang Xiang-Dong Jiang Ming

State equation of inert plasma

Tian Yang-Meng, Wang Cai-Xia, Cheng Xin-Lu, Yang Xiang-Dong, Jiang Ming
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  • Abstract views:  3110
  • PDF Downloads:  1039
  • Cited By: 0
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  • Received Date:  09 January 2007
  • Accepted Date:  11 February 2007
  • Published Online:  20 October 2007

State equation of inert plasma

  • 1. (1)北京信息工程学院基础部,北京 100101; (2)四川大学原子分子物理研究所,成都 610065; (3)西南民族大学物理系,成都 610064

Abstract: The paper present a simplified new model for computing state equation and ionization degree of inert plasma, which is based on the Thomas-Feimi(TF)statistical model. We fitted the numerical results of the ionization potential calculated by TF statistical model and obtained the analytic function for computing the ionization potential. Then in the local thermal equilibrium (LTE) case we assume the density of plasma n(Z*) is a continuous function of Z*, and based on Saha equation with Debye-Hückel correction we established a simplified model of state equation of inert plasma. Using this simplified model we calculated the average degree of ionization and the state equation for Helium, Neon and Argon Plasma. The results from this simplified model are basically in agreement with both theory and experimental data. This simplified model can be used to calculate the state equation of plasma mixtures and is expected to have a wider applieation in the field of strongly ionized plasma.

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