@article {3083,
	title = {ELECTRON DEGRADATION AND THERMALIZATION IN SIH4 GAS},
	journal = {Chemical Physics},
	volume = {185},
	number = {1},
	year = {1994},
	note = {ISI Document Delivery No.: NV740Times Cited: 9Cited Reference Count: 30},
	month = {Jul},
	pages = {1-11},
	type = {Article},
	abstract = {The time-dependent Boltzmann equation is applied to the study of the degradation and thermalization of a nonequilibrium distribution of subexcitation electrons in SiH4. For the small electron to SiH4 mass ratio, the collision operators in the Boltzmann equation reduce to the differential Fokker-Planck operator for elastic collisions and the difference operator for inelastic collisions. A finite difference method of solution of the Boltzmann equation is used. The time evolution of the electron energy distribution and the thermalization time of subexcitation electrons are calculated for initial electron energies of 1, 3 and 5 eV. It is shown that super elastic collisions due to vibrational de-excitation play an important role in the thermalization process.},
	keywords = {CROSS-SECTIONS, ENERGY, HELIUM, INITIAL PRODUCTS, NITROGEN, SPECTRA, SUBEXCITATION ELECTRONS, TIME-DEPENDENT ASPECTS, YIELDS},
	isbn = {0301-0104},
	url = {<Go to ISI>://A1994NV74000001},
	author = {Kowari, K. and Shizgal, B. D.}
}
@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 = {<Go to ISI>://A1992JE89100051},
	author = {Kowari, K. and Demeio, L. and Shizgal, B.}
}
@article {7059,
	title = {THE PARTIAL CONTINUOUS SLOWING DOWN APPROXIMATION (PCSDA) IN THE SOLUTION OF THE SPENCER-FANO EQUATION},
	journal = {Chemical Physics Letters},
	volume = {176},
	number = {6},
	year = {1991},
	note = {ISI Document Delivery No.: EX468Times Cited: 1Cited Reference Count: 24},
	month = {Feb},
	pages = {575-580},
	type = {Article},
	abstract = {The Spencer-Fano equation (SFE) is often used to study the energy distribution of energetic electrons and their moderation in gases. Although accurate results can be obtained from a numerical solution of the SFE, the calculations are time-consuming and instead the continuous slowing down approximation (CSDA), applied to all the collision terms in the SFE, is often used as an alternate more efficient methodology. The work in the present paper considers a modification of the usual CSDA which involves the application of the CSDA to specific collision terms in the SFE rather than to all the terms. This new approximation scheme referred to as the partial continuous slowing down approximation (PCSDA) is applied to the degradation of electrons in N2. The new method is found to give better results than the conventional CSDA and provides a more efficient determination of the degradation spectrum than does the solution of the SFE.},
	keywords = {100 KEV ELECTRONS, ELECTRON DEGRADATION SPECTRA, EXCITATION, G-VALUES, INITIAL PRODUCTS, IONIZATION, MOLECULAR-HYDROGEN, RARE-GAS MODERATORS, SUBEXCITATION ELECTRONS, YIELDS},
	isbn = {0009-2614},
	url = {<Go to ISI>://A1991EX46800015},
	author = {Kowari, K. and Shizgal, B.}
}
@article {7058,
	title = {TIME-DEPENDENT ELECTRON-DISTRIBUTION FUNCTIONS AND DEGRADATION SPECTRA - A COMPARISON OF THE SPENCER-FANO EQUATION AND THE BOLTZMANN-EQUATION},
	journal = {Applied Radiation and Isotopes},
	volume = {42},
	number = {10},
	year = {1991},
	note = {ISI Document Delivery No.: GL858Times Cited: 8Cited Reference Count: 43SYMP ON THE PHYSICS OF ELECTRON TRANSPORTAPR 02-03, 1990GAITHERSBURG, MDUS DOE, OFF HLTH \& ENVIRONM RES},
	pages = {985-994},
	type = {Proceedings Paper},
	abstract = {The thermalization of electrons in gaseous moderators for initial nonequilibrium distributions not far removed from thermal energies has been studied previously with a Fokker-Planck equation for electron distribution. For electron energies in the keV to eV energy range an approach based on the Spencer-Fano equation has also been used. The present paper considers a detailed comparison of the two approaches to electron thermalization. The Spencer-Fano equation is analogous to the Fokker-Planck equation but with the moderator temperature set to zero, that is, with the cold gas approximation. The effect of the cold gas approximation on the time evolution of the nonequilibrium distributions and on the calculation of thermalization times is discussed in detail. The cold gas approximation is shown to be the basis for most of the concepts used in radiation chemistry and physics to study electron degradation. Applications to the thermalization of electrons in the inert gases are considered. The analysis is restricted to elastic electron-moderator collisions.},
	keywords = {ARGON, HELIUM, HOT-ATOM REACTIONS, INITIAL PRODUCTS, NITROGEN, RARE-GAS MODERATORS, SUBEXCITATION ELECTRONS, THERMALIZATION, TRANSPORT, YIELDS},
	isbn = {0969-8043},
	url = {<Go to ISI>://A1991GL85800010},
	author = {Kowari, K. and Shizgal, B.}
}
