Population kinetics in dense plasmas

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.51313· OSTI ID:451655

Schlanges, M ^[1]; Bornath, T; Prenzel, R; Kremp, D ^[2]

---

1. FB Physik, Ernst-Moritz-Arndt-University Greifswald, D-17489 Greifswald (Germany)
2. FB Physik, University of Rostock, D-18051 Rostock (Germany)

Starting from quantum kinetic equations, rate equations for the number densities of the different atomic states and equations for the energy density are derived which are valid for dense nonideal plasmas. Statistical expressions are presented for the rate coefficients taking into account many-body effects as dynamical screening, lowering of the ionization energy and Pauli-blocking. Based on these generalized expressions, the coefficients of impact ionization, three-body recombination, excitation and deexcitation are calculated for nonideal hydrogen and carbon plasmas. As a result, higher ionization and recombination rates are obtained in the dense plasma region. The influence of the many-body effects on the population kinetics, including density and temperature relaxation, is shown then for a dense hydrogen plasma. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 451655
• Report Number(s): CONF-960155--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 381; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DENSE PLASMA
ELECTRON DENSITY
ELECTRON TEMPERATURE
HYDROGEN
IONIZATION
KINETIC EQUATIONS
KINETICS
MANY-BODY PROBLEM
NON-EQUILIBRIUM PLASMA
PLASMA DENSITY
RECOMBINATION
TOTAL CROSS SECTIONS