SHEATH STRUCTURE AROUND PARTICLES IN LOW-PRESSURE DISCHARGES

被引：238

作者：

DAUGHERTY, JE ^{[1
]}

PORTEOUS, RK ^{[1
]}

KILGORE, MD ^{[1
]}

GRAVES, DB ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 72卷 / 09期

关键词：

D O I：

10.1063/1.352245

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Collisionless orbit theory is used to model isolated particles in low-pressure discharges with and without the presence of negative ions. The key results are as follows: (1) Debye-Huckel theory works well for approximating the potential profile around the particle, and (2) the size of the sheath around the particle is determined by a Debye length that results from linearizing the Poisson-Vlasov equation. These results are valid as long as the ratio of particle radius to Debye length is small and the ratio of Debye length to mean free path is small.

引用

页码：3934 / 3942

页数：9