Influence of Electron-Electron Collisions on the Formation of Inverse Electron Distribution Function and Absolute Negative Conductivity in Nonlocal Plasma of a DC Glow Discharge

被引：0

作者：

Yuan, Chengxun ^{[1
]}

Chai, Yan ^{[1
]}

Bogdanov, Eugene A. ^{[2
]}

Kudryavtsev, Anatoly A. ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China

[2] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2022年 / 50卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

Plasmas; Mathematical models; Conductivity; Glow discharges; Numerical models; Kinetic energy; Distribution functions; Glow discharge; inverse electron distribution function (EDF); numerical simulation; positive column (PC); MOBILITY;

D O I：

10.1109/TPS.2022.3173987

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：

The influence of electron-electron collisions on the formation of inverse electron distribution function (EDF) and absolute negative conductivity (ANC) in nonlocal plasma of a direct current (dc) glow discharge is investigated. The numerical model was created in the COMSOL Multiphysics software environment and includes a kinetic equation for electrons in energy and coordinate variables, drift-diffusion fluid balance equations for heavy particles, and a Poisson equation for finding a self-consistent electric field. It is shown that the Maxwellization of the EDF due to an increase in the role of electron-electron collisions can significantly limit the possibility of the appearance of a reverse EDF and ANC in a nonlocal plasma of rare gases with a Ramsauer minimum of the elastic scattering cross section.

引用

页码：1689 / 1694

页数：6

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