Open AccessAn extended model for ion charge state distribution of plasmas in collisional radiative steady state
Author(s) -
Duan Yao-Yong,
Guo Yong-Hui,
Qiu Ai-Ci,
Gang Wu
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.5588
Subject(s) - atomic physics , ion , plasma , excited state , physics , boltzmann distribution , radiative transfer , distribution function , population , boltzmann constant , excitation , charge (physics) , electron , statistical physics , nuclear physics , quantum mechanics , demography , sociology
A non-Boltzmann distribution is constructed in terms of ion excitation-deexcitation equilibrium in plasmas, over which the rate coefficients of atomic processes are averaged, and an extended numerical model for charge state distribution of plasmas in collisional radiative steady state is established. The model is used to compute mean ion charge for various plasmas, ranging from low Z to high Z elements, as a function of electron temperature and density. Furthermore, the effects of non-Boltzmann distribution on mean ion charge and ion excited configuration population are investigated. The results show that the ion excited configuration population is evidently affected by the non-Boltzmann distribution.