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.

引用

页码：169 / 172

页数：4

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