Ionization and equation of state of dense xenon at high pressures and high temperatures

被引：19

作者：

Chen, Q. F. ^{[1
]}

Cai, L. C. ^{[1
]}

Gu, Y. J. ^{[1
]}

Gu, Y. ^{[1
]}

机构：

[1] Inst Fluid Phys, Lab Shock Wave & Detonat Phys Res, Mianyang, Sichuan, Peoples R China

来源：

PHYSICAL REVIEW E | 2009年 / 79卷 / 01期

基金：

中国国家自然科学基金;

关键词：

chemical potential; equations of state; free energy; ionisation; plasma density; plasma shock waves; plasma temperature; plasma thermodynamics; variational techniques; xenon; THERMODYNAMICAL PROPERTIES; STELLAR MATTER; NOBLE-GASES; HYDROGEN;

D O I：

10.1103/PhysRevE.79.016409

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：

The ionization degree and equation of state of dense xenon plasma were calculated by using self-consistent fluid variational theory for temperature of 4-30 kK and density of 0.01-8.5 g/cm(3). The dense fluid xenon will be ionized at high pressures and temperatures. The ionization energy of xenon will be lowered due to the interactions among all particles of Xe, Xe+, Xe2+, and e. The ionization degree is obtained from nonideal ionization equilibrium, taking into account the correlative contributions to the chemical potential which is determined self-consistently by the free energy function. The composition of xenon has been calculated with given densities and temperatures in the region of partial ionization. The calculated results show a pressure softening regime at the onset of ionization. Comparison is performed with available shock-wave experiments and other theoretical calculations.

引用

页数：6

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