Helical plasma striations in liners in the presence of an external axial magnetic field

被引：27

作者：

Atoyan, L. ^{[1
]}

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

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

Byvank, T. ^{[1
]}

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

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

Pikuz, S. A. ^{[1
,2
]}

Shelkovenko, T. A. ^{[1
,2
]}

机构：

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

[2] PN Lebedev Phys Inst, Leninsky Prospect 53, Moscow 117924, Russia

来源：

PHYSICS OF PLASMAS | 2016年 / 23卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.4942787

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：

Awe et al. found on the 20 MA Z machine [Acta Phys. Pol. A 115, 956 (2009)] that applying an externally generated axial magnetic field to an imploding liner leads to a helical pattern in the liner when viewed with soft x-ray radiography ([Phys. Rev. Lett. 111, 235005 (2013)] and [Phys. Plasmas 21, 056303 (2014)]). Here, we show that this phenomenon is also observed in extreme ultraviolet self-emission images of 10 mm long cylindrical metal liners having varying diameters and varying wall thicknesses on a 1 MA, 100-200 ns pulsed power generator. The magnetic field in these experiments is created using either twisted return current wires positioned close to the liner, generating a time-varying B-z, or a Helmholtz coil, generating a steady-state B-z. (C) 2016 AIP Publishing LLC.

引用

页数：7

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