Magnetohydrodynamic instabilities in radial foil configurations

被引：8

作者：

Gourdain, P. -A. ^{[1
]}

Greenly, J. B. ^{[1
]}

Hammer, D. A. ^{[1
]}

Kusse, B. R. ^{[1
]}

Pikuz, S. A. ^{[1
]}

Seyler, C. E. ^{[1
]}

Shelkovenko, T. C. ^{[1
]}

Knapp, P. F. ^{[2
]}

机构：

[1] Cornell Univ, Plasma Studies Lab, Ithaca, NY 14853 USA

[2] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

PHYSICS OF PLASMAS | 2012年 / 19卷 / 02期

基金：

美国国家科学基金会;

关键词：

Magnetohydrodynamics - Electromagnetic fields - Magnetoplasma - Plasma diagnostics;

D O I：

10.1063/1.3677887

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：

While detrimental to plasma performance, magnetohydrodynamic plasma instabilities in radial foil configurations do not preclude intense x-ray radiations from the central plasma column. At most of the plasma current flows there, the column pinches generating x-rays. However, pinch comes with a kink instability which twists the column and prevents homogeneous compression. This instability leads to the disruption of the plasma bubble surrounding the central plasma column. Loss of symmetry in the resulting plasma expansion has been recorded. It is possible to reduce the impact of instabilities by increasing the initial plasma mass. The central column can also be stabilized by using a central rod, delaying the formation of the kink. (C) 2012 American Institute of Physics. [doi:10.1063/1.36778871

引用

页数：6

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