The plasma state in the surroundings of a multi-cathode-spot vacuum arc

被引:8
|
作者
Kelly, H [1 ]
Marquez, A [1 ]
Minotti, F [1 ]
Fontan, CF [1 ]
机构
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, CONICET,Inst Fis Plasma, RA-1428 Buenos Aires, DF, Argentina
关键词
D O I
10.1088/0022-3727/31/14/018
中图分类号
O59 [应用物理学];
学科分类号
摘要
A stationary, two-fluid model with spherical symmetry to describe the region surrounding the electrodes of a multi-cathode-spot vacuum are is presented. For typical values of are parameters, there is a weak coupling between ions and electrons and an analytical approximation for the physical quantities of the plasma can be developed. An important feature of this model is the prediction of a voltage profile outside the electrodes which causes an extra acceleration of the ions emerging from the interelectrode plasma.
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页码:1737 / 1741
页数:5
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