@article {2780,
title = {A UNIFORM WENTZEL-KRAMERS-BRILLOUIN APPROACH TO ELECTRON-TRANSPORT IN MOLECULAR GASES},
journal = {Journal of Chemical Physics},
volume = {99},
number = {10},
year = {1993},
note = {ISI Document Delivery No.: MH744Times Cited: 4Cited Reference Count: 46},
month = {Nov},
pages = {7638-7651},
type = {Article},
abstract = {The relaxation of a nonequilibrium distribution of electrons in molecular gases, and the transient and steady electron transport properties are studied with the Boltzmann equation, which accurately accounts for elastic and inelastic electron-moderator collisions. The elastic collision operator is a self-adjoint Fokker-Planck operator, whereas the-inelastic collision term is a difference operator. We consider a discretization of the inelastic collision operator which is motivated by the discrete energy losses that occur. For small energy losses, a continuous approximation is introduced such that the inelastic collision term is approximated by a Fokker-Planck operator similar to the elastic collision operator. The transient electron transport properties are studied for an initial electron distribution function in terms of the eigenvalue spectrum of both the elastic and inelastic collision operators. The Fokker-Planck eigenvalue problem is transformed into a Schrodinger equation and the nature of the spectrum is studied in terms of the Wentzel-Kramers-Brillouin and supersymmetric Wentzel-Kramers-Brillouin approximations. The methodology is applied to model systems and the transport of electrons in methane.},
keywords = {BOLTZMANN-EQUATION ANALYSIS, COEFFICIENTS, DIFFUSION, FIELD DEPENDENCE, MODERATORS, NEUTRAL GASES, PARAMETERS, SWARM, THERMALIZATION, VELOCITY DISTRIBUTION FUNCTION, WKB},
isbn = {0021-9606},
url = {://A1993MH74400037},
author = {Demeio, L. and Shizgal, B.}
}
@article {7288,
title = {ELECTRON DEGRADATION AND THERMALIZATION IN CH4 GAS},
journal = {Journal of Chemical Physics},
volume = {97},
number = {3},
year = {1992},
note = {ISI Document Delivery No.: JE891Times Cited: 17Cited Reference Count: 44},
month = {Aug},
pages = {2061-2074},
type = {Article},
abstract = {The relaxation to equilibrium of an ensemble of electrons dilutely dispersed in a large excess of CH4 is studied with solutions of the Boltzmann equation. Elastic and vibrationally inelastic collision processes are included in the analysis. The relaxation time for the approach to equilibrium defined for the relaxation of the average electron energy is determined for two different cross section sets. The kinetic theory formalism, based on the Boltzmann equation, is compared with the formalism used in radiation chemistry and physics and based on the Spencer-Fano equation.},
keywords = {APPROXIMATION, equation, INITIAL PRODUCTS, NEUTRAL GASES, SPENCER-FANO, SUBEXCITATION ELECTRONS, SWARMS, TIME-DEPENDENT ASPECTS, TRANSPORT-COEFFICIENTS, VELOCITY DISTRIBUTION FUNCTION, YIELDS},
isbn = {0021-9606},
url = {://A1992JE89100051},
author = {Kowari, K. and Demeio, L. and Shizgal, B.}
}