Influence of the self-heated cathode geometry on the parameters of a low-pressure discharge in crossed E×H fields

被引：0
|
作者：
Zyul'kova L.A. [1 ]
Kozyrev A.V. [1 ]
Kagadei V.A. [1 ]
Proskurovskii D.I. [1 ]
机构：
[1] Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences
来源：
Russian Physics Journal | 2005年 / 48卷 / 1期
关键词：
Energy Balance; Electron Concentration; Continuity Equation; Work Function; Cathode Material;
D O I：
10.1007/s11182-005-0088-z
中图分类号：
学科分类号：
摘要：
The parameters of a self-maintained low-pressure discharge in crossed E×H fields are compared for the Penning discharge with a self-heated disk cathode and the combined discharge with an axial self-heated rod electrode. Based on the continuity equation for the electron flux and the energy balance on the hot cathode, the parameters of the discharge in crossed E×H fields with the self-heated cathode are calculated for a wide range of variations of geometrical sizes of the discharge cell and work functions of cathode material. It is demonstrated that the examined systems differ significantly by radial distributions of fast electron concentration (uniform for the Penning cell and highly nonuniform for the combined discharge cell) and currents and that the volt-ampere characteristics of the examined cells are described by decreasing voltage-current dependences. ©2005 Springer Science+Business Media, Inc.
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页码：84 / 92
页数：8
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