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Title: Two-temperature relaxation in nonideal partially ionized plasmas

Abstract

Evolution equations for the coupled relaxation of densities and temperatures for the components in nonideal partially ionized plasmas are given. In these equations many-body effects, such as screening, self-energy, and lowering of the binding energy, are included. The coupled equations are solved numerically for a hydrogen plasma consisting of electrons, protons, and atoms. Impact ionization, three-body recombination, and elastic processes are taken into account. Thermal relaxation times are determined and the results are compared with those from the literature. The influence of many-body effects on the evolution process are discussed. In some cases, a significantly increased lifetime of the two-temperature regime is found. {copyright} {ital 1996 American Institute of Physics.}

Authors:
; ; ;  [1];  [2]
  1. Fachbereich Physik der Universitaet Rostock, 18051 Rostock (Germany)
  2. Fachbereich Physik der Ernst-Moritz-Arndt-Universitaet Greifswald, 17487 Greifswald (Germany)
Publication Date:
OSTI Identifier:
279752
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 3; Journal Issue: 4; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; COLLISIONAL PLASMA; IONIZATION; BINDING ENERGY; ELECTRON TEMPERATURE; HYDROGEN; PLASMA FLUID EQUATIONS; RELAXATION TIME; SCREENING; SELF-ENERGY; BOUND STATES

Citation Formats

Ohde, T, Bonitz, M, Bornath, T, Kremp, D, and Schlanges, M. Two-temperature relaxation in nonideal partially ionized plasmas. United States: N. p., 1996. Web. doi:10.1063/1.871748.
Ohde, T, Bonitz, M, Bornath, T, Kremp, D, & Schlanges, M. Two-temperature relaxation in nonideal partially ionized plasmas. United States. doi:10.1063/1.871748.
Ohde, T, Bonitz, M, Bornath, T, Kremp, D, and Schlanges, M. Mon . "Two-temperature relaxation in nonideal partially ionized plasmas". United States. doi:10.1063/1.871748.
@article{osti_279752,
title = {Two-temperature relaxation in nonideal partially ionized plasmas},
author = {Ohde, T and Bonitz, M and Bornath, T and Kremp, D and Schlanges, M},
abstractNote = {Evolution equations for the coupled relaxation of densities and temperatures for the components in nonideal partially ionized plasmas are given. In these equations many-body effects, such as screening, self-energy, and lowering of the binding energy, are included. The coupled equations are solved numerically for a hydrogen plasma consisting of electrons, protons, and atoms. Impact ionization, three-body recombination, and elastic processes are taken into account. Thermal relaxation times are determined and the results are compared with those from the literature. The influence of many-body effects on the evolution process are discussed. In some cases, a significantly increased lifetime of the two-temperature regime is found. {copyright} {ital 1996 American Institute of Physics.}},
doi = {10.1063/1.871748},
journal = {Physics of Plasmas},
number = 4,
volume = 3,
place = {United States},
year = {1996},
month = {4}
}