Collective ion acceleration during the decay of a high-current Z-pinch

被引：1
|
作者：
Zaitsev, V. I. [1 ]
Volkov, G. S. [1 ]
Kartashov, A. V. [1 ]
Lakhtyushko, N. I. [1 ]
机构：
[1] Troitsk Inst Innovat & Fus Res, Troitsk 142092, Moscow Oblast, Russia
来源：
PLASMA PHYSICS REPORTS | 2008年 / 34卷 / 03期
关键词：
D O I：
10.1134/S1063780X0803001X
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：
A study is made of the Z-pinch plasma expansion after the current is switched off. Measurements were carried out in experiments on the implosion of tungsten wire arrays in the Angara-5-1 facility. It is found experimentally that, at a distance of 2 in from the pinch, the ion velocity in the expanding Z-pinch plasma is about (2.5-4.0) X 10(7) cm/s which substantially exceeds the thermal velocity of tungsten ions. A model describing the plasma expansion process is proposed that is based on the ambipolar acceleration mechanism. The results of numerical simulations are compared with the experimental data.
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收藏
页码：169 / 172
页数：4
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