Mechanisms for the formation and transport of ion fluxes in the plasma of a high-current vacuum spark

被引：7
|
作者：
Dolgov, A. N. [1 ]
Zemchenkova, N. V. [1 ]
Klyachin, N. A. [1 ]
Prokhorovich, D. E. [1 ]
机构：
[1] Moscow Engn Phys Inst, Moscow 115409, Russia
来源：
PLASMA PHYSICS REPORTS | 2010年 / 36卷 / 09期
关键词：
MICROPINCH DISCHARGE;
D O I：
10.1134/S1063780X10090035
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 processes of ion flux formation in the plasma of a high-current vacuum spark were investigated experimentally. It is shown that multicharged ions are generated in the neck formed in the erosion products of the inner electrode. The plasma escaping from the neck region plays a role of a piston dragging particles of the cold peripheral plasma into ambient space. As the discharge current increases, the flux of the evaporated electrode material grows, the degree of ionization of the plasma produced decreases, and the efficiency of plasma heating caused by the pinching effect is reduced.
引用
收藏
页码：772 / 778
页数：7
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