Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field

Zhang, Yue; Gilmore, Mark; Hsu, Scott C.; Fisher, Dustin M.; Lynn, Alan G.

doi:10.1063/1.5010188

Title: Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field

Journal Article · Tue Nov 07 00:00:00 EST 2017 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5010188· OSTI ID:1469557

^[1]; Gilmore, Mark ^[1];

^[2]; Fisher, Dustin M. ^[1]; Lynn, Alan G. ^[1]

Univ. of New Mexico, Albuquerque, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

In this paper, we report experimental results on the injection of a magnetized plasma jet into a transverse background magnetic field in the HelCat linear plasma device at the University of New Mexico [M. Gilmore et al., J. Plasma Phys. 81(1), 345810104 (2015)]. After the plasma jet leaves the plasma-gun muzzle, a tension force arising from an increasing curvature of the background magnetic field induces in the jet a sheared axial-flow gradient above the theoretical kink-stabilization threshold. Finally, we observe that this emergent sheared axial flow stabilizes the n = 1 kink mode in the jet, whereas a kink instability is observed in the jet when there is no background magnetic field present.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC). Fusion Energy Sciences (FES) (SC-24)

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1469557

Report Number(s):: LA-UR-18-25842

Journal Information:: Physics of Plasmas, Vol. 24, Issue 11; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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Experimental investigation of coaxial-gun-formed plasmas injected into a background transverse magnetic field or plasma Zhang, Yue; Fisher, Dustin M.; Gilmore, Mark Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5019727	journal	May 2018
Optical emission spectroscopy investigation of the current sheet in a small-bore parallel-plate electromagnetic plasma accelerator Liu, Shuai; Huang, Yizhi; Zhang, Yongpeng Physics of Plasmas, Vol. 25, Issue 11 https://doi.org/10.1063/1.5055054	journal	November 2018
The Mochi LabJet Experiment for Measurements of Canonical Helicity Injection in a Laboratory Astrophysical Jet You, Setthivoine; von der Linden, Jens; Lavine, Eric Sander The Astrophysical Journal Supplement Series, Vol. 236, Issue 2 https://doi.org/10.3847/1538-4365/aaba6f	journal	May 2018
The Mochi.LabJet experiment for measurements of canonical helicity injection in a laboratory astrophysical jet You, Setthivoine; von der Linden, Jens; Lavine, Eric Sander arXiv https://doi.org/10.48550/arxiv.1711.07213	text	January 2017

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