Dynamics of the Structure of the Plasma Current Sheath in a Plasma Focus Discharge

被引：19

作者：

Krauz, V. I. ^{[1
]}

Mitrofanov, K. N. ^{[2
]}

Myalton, V. V. ^{[1
]}

Vinogradov, V. P. ^{[1
]}

Vinogradova, Yu. V. ^{[1
]}

Grabovski, E. V. ^{[2
]}

Koidan, V. S. ^{[1
]}

机构：

[1] IV Kurchatov Atom Energy Inst, Natl Res Ctr, Moscow 123182, Russia

[2] Troitsk Inst Innovat & Fusion Res, Troitsk 142190, Moscow Oblast, Russia

来源：

PLASMA PHYSICS REPORTS | 2011年 / 37卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

Shock Wave; Plasma Physic Report; Plasma Focus; Neutron Yield; Neutron Emission;

D O I：

10.1134/S1063780X11080058

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 study is aimed at investigating the fine structure of the plasma current sheath (PCS) in the PF-3 plasma focus facility. The PCS dynamics in a deuterium discharge was studied. The PCS parameters were measured using absolutely calibrated magnetic probes installed at different positions with respect to the facility axis and the anode surface. A magneto-optical probe recording both the magnetic signal and the PCS optical luminosity was first applied to analyze the PCS structure. This made it possible to spatially resolve the current and shock-wave regions. It is demonstrated that the current distribution is different in different discharge stages. It is shown that the neutron yield is determined by the value of the current compressed toward the axis, rather then the amplitude of the total discharge current. DOI: 10.1134/S1063780X11080058

引用

页码：742 / 754

页数：13

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