Equation of state of dense plasmas using a screened-hydrogenic model with l-splitting

被引：31

作者：

Faussurier, G. ^{[1
]}

Blancard, C. ^{[1
]}

Renaudin, P. ^{[1
]}

机构：

[1] CEA, Dept Phys Theor & Appl, DAM Ile de France, F-91680 Bruyeres Le Chatel, France

来源：

HIGH ENERGY DENSITY PHYSICS | 2008年 / 4卷 / 3-4期

关键词：

Dense plasma; Equation of state; Screened-hydrogenic model; QEOS;

D O I：

10.1016/j.hedp.2008.03.002

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present a self-consistent model based on a nonrelativistic screened-hydrogenic model with l-splitting to calculate the equation of state of matter in local thermodynamic equilibrium. We take into account the quantum subshell effect to go beyond the simple semiclassical and statistical Thomas-Fermi approach to obtain the electronic properties. Arbitrary degeneracy is allowed for the free electrons. Pressure ionization mechanism, which plays a key role in the present ionization-equilibrium model, is carefully described. Ion properties and cold curve are determined using the QEOS multiphase equation of state. The whole model is fast, robust, and reasonably accurate over a wide range of temperatures and densities. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：114 / 123

页数：10

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