THERMALIZATION OF HIGH-ENERGY PARTICLES IN A COLD GAS

被引：14

作者：

WALDEER, KT

URBASSEK, HM

机构：

[1] Institut für Theoretische Physik, TU, W-3300 Braunschweig

来源：

PHYSICA A | 1991年 / 176卷 / 02期

关键词：

D O I：

10.1016/0378-4371(91)90292-K

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermalization of a homogeneous isotropic source of high energy particles in a cold background gas is studied theoretically via the nonlinear Boltzmann equation. A numerical solution scheme based on a Monte Carlo simulation code is employed. Attention is focused on the time evolution of the energy spectra of the gas particles, neglecting all spatial transport effects. The influence of the interaction potential is studied in detail and compared with the predictions of linear theory. The dependence of the thermalization time on the interaction potential and the concentration of high energy particles is discussed.

引用

页码：325 / 344

页数：20

共 29 条

[1]

Abramowitz M., 1965, HDB MATH FUNCTIONS

[2] WILDS SOLUTION OF THE NONLINEAR BOLTZMANN-EQUATION [J].

BARRACHINA, RO .

JOURNAL OF STATISTICAL PHYSICS, 1988, 52 (1-2) :357-368

[3]

BIRD GA, 1976, MOL GAS DYNAMICS

[4]

Boltzmann L., 1872, WIENER BERICHTE, V66, P275, DOI DOI 10.1007/978-3-322-84986-1_3

[5]

Cercignani C., 1988, BOLTZMANN EQUATION I

[6] TIME-DEPENDENT COLLISION CASCADES [J].

CORNGOLD, NR .

PHYSICAL REVIEW A, 1989, 39 (04) :2126-2132

[7] NON-LINEAR MODEL BOLTZMANN EQUATIONS AND EXACT-SOLUTIONS [J].

ERNST, MH .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1981, 78 (01) :1-171

[8] EXACTLY SOLVABLE NONLINEAR BOLTZMANN-EQUATION [J].

ERNST, MH ;

HENDRIKS, EM .

PHYSICS LETTERS A, 1979, 70 (03) :183-185

[9] THE BOLTZMANN-EQUATION FOR VERY HARD PARTICLES [J].

HENDRIKS, EM ;

ERNST, MH .

PHYSICA A, 1983, 120 (03) :545-565

[10]

LEVINSON IB, 1987, ZH EKSP TEOR FIZ+, V65, P1252

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