Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field
Abstract
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.
- Authors:
-
- Univ. of New Mexico, Albuquerque, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC). Fusion Energy Sciences (FES) (SC-24)
- OSTI Identifier:
- 1469557
- Report Number(s):
- LA-UR-18-25842
Journal ID: ISSN 1070-664X
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 24; Journal Issue: 11; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Zhang, Yue, Gilmore, Mark, Hsu, Scott C., Fisher, Dustin M., and Lynn, Alan G. Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field. United States: N. p., 2017.
Web. doi:10.1063/1.5010188.
Zhang, Yue, Gilmore, Mark, Hsu, Scott C., Fisher, Dustin M., & Lynn, Alan G. Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field. United States. https://doi.org/10.1063/1.5010188
Zhang, Yue, Gilmore, Mark, Hsu, Scott C., Fisher, Dustin M., and Lynn, Alan G. Tue .
"Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field". United States. https://doi.org/10.1063/1.5010188. https://www.osti.gov/servlets/purl/1469557.
@article{osti_1469557,
title = {Emergent kink stability of a magnetized plasma jet injected into a transverse background magnetic field},
author = {Zhang, Yue and Gilmore, Mark and Hsu, Scott C. and Fisher, Dustin M. and Lynn, Alan G.},
abstractNote = {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.},
doi = {10.1063/1.5010188},
journal = {Physics of Plasmas},
number = 11,
volume = 24,
place = {United States},
year = {Tue Nov 07 00:00:00 EST 2017},
month = {Tue Nov 07 00:00:00 EST 2017}
}
Web of Science
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Works referencing / citing this record:
Experimental investigation of coaxial-gun-formed plasmas injected into a background transverse magnetic field or plasma
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