DIRECT EVIDENCE OF DEPARTURE FROM LOCAL THERMODYNAMIC-EQUILIBRIUM IN A FREE-BURNING ARC-DISCHARGE PLASMA

被引：58

作者：

SNYDER, SC

LASSAHN, GD

REYNOLDS, LD

机构：

[1] Idaho National Engineering Laboratory, EG and G Idaho, Inc., Idaho Falls, ID 83415

来源：

PHYSICAL REVIEW E | 1993年 / 48卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.48.4124

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Radial profiles of gas temperature, electron temperature, and electron density were measured in a free-burning atmospheric-pressure argon arc-discharge plasma using line-shape analysis of scattered laser light. This method yields gas temperature, electron temperature, and electron density directly, with no reliance on the assumption of local thermodynamic equilibrium (LTE). Our results show a significant departure from LTE in the center of the discharge, contrary to expectations.

引用

页码：4124 / 4127

页数：4

共 19 条

[1]

BIBERMAN LM, 1987, KINETICS NONEQUILIBR

[2] INELASTIC LIGHT-SCATTERING FROM DENSITY FLUCTUATIONS IN DILUTE GASES - KINETIC HYDRODYNAMIC TRANSITION IN A MONATOMIC GAS [J].