Transient regime of degenerate electrons via relaxation time approximation

Author

Giusti, D. ; Molinari, V.G.

Author_Institution

Lab. di Ingegneria Nucl. dell´´Univ., Bologna, Italy

fYear

1993

fDate

7-9 June 1993

Firstpage

196

Abstract

Summary form only given. The relaxation time approximation has been used to solve the time-independent and the time-dependent Boltzmann-Vlasov equation for an electron gas whose degree of degeneration is complete or weak. The stationary and time-dependent electron distribution functions have been obtained together with density current and electrical conductivity. The relaxation time /spl tau/(E) is considered as being a function of the energy. Different kinds of functions are considered. The strong influence of different /spl tau/(E) on the distribution function and on the density current has been shown. Deviations from Ohm´s law at high current densities have been analyzed.

Keywords

electron gas; Ohm´s law; degenerate electrons; degree of degeneration; density current; electrical conductivity; electron distribution functions; electron gas; high current densities; relaxation time approximation; time-dependent Boltzmann-Vlasov equation; time-independent Boltzmann-Vlasov equation; transient regime; Conductivity; Current density; Distribution functions; Electron beams; Equations; Laboratories; Plasma transport processes; Switches; Zinc compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1993. IEEE Conference Record - Abstracts., 1993 IEEE International Conference on

Conference_Location

Vancouver, BC, Canada

ISSN

0730-9244

Print_ISBN

0-7803-1360-7

Type

conf

DOI

10.1109/PLASMA.1993.593538

Filename

593538