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Title: Hybrid simulations of a parallel collisionless shock in the large plasma device

We present two-dimensional hybrid kinetic/magnetohydrodynamic simulations of planned laser-ablation experiments in the Large Plasma Device (LAPD). Our results, based on parameters which have been validated in previous experiments, show that a parallel collisionless shock can begin forming within the available space. Carbon-debris ions that stream along the magnetic- eld direction with a blow-o speed of four times the Alfv en velocity excite strong magnetic uctuations, eventually transfering part of their kinetic energy to the surrounding hydrogen ions. This acceleration and compression of the background plasma creates a shock front, which satis es the Rankine{Hugoniot conditions and can therefore propagate on its own. Furthermore, we analyze the upstream turbulence and show that it is dominated by the right-hand resonant instability.
Authors:
ORCiD logo [1] ;  [2] ;  [1] ; ORCiD logo [1]
  1. Univ. of California, Los Angeles, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-28008
Journal ID: ISSN 1070-664X; PHPAEN; TRN: US1800996
Grant/Contract Number:
AC52-06NA25396; NA0001995; SC0006583:0003
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 12; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Defense Threat Reduction Agency (DTRA); USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1417164
Alternate Identifier(s):
OSTI ID: 1334352

Weidl, Martin S., Winske, Dan, Jenko, Frank, and Niemann, Chris. Hybrid simulations of a parallel collisionless shock in the large plasma device. United States: N. p., Web. doi:10.1063/1.4971231.
Weidl, Martin S., Winske, Dan, Jenko, Frank, & Niemann, Chris. Hybrid simulations of a parallel collisionless shock in the large plasma device. United States. doi:10.1063/1.4971231.
Weidl, Martin S., Winske, Dan, Jenko, Frank, and Niemann, Chris. 2016. "Hybrid simulations of a parallel collisionless shock in the large plasma device". United States. doi:10.1063/1.4971231. https://www.osti.gov/servlets/purl/1417164.
@article{osti_1417164,
title = {Hybrid simulations of a parallel collisionless shock in the large plasma device},
author = {Weidl, Martin S. and Winske, Dan and Jenko, Frank and Niemann, Chris},
abstractNote = {We present two-dimensional hybrid kinetic/magnetohydrodynamic simulations of planned laser-ablation experiments in the Large Plasma Device (LAPD). Our results, based on parameters which have been validated in previous experiments, show that a parallel collisionless shock can begin forming within the available space. Carbon-debris ions that stream along the magnetic- eld direction with a blow-o speed of four times the Alfv en velocity excite strong magnetic uctuations, eventually transfering part of their kinetic energy to the surrounding hydrogen ions. This acceleration and compression of the background plasma creates a shock front, which satis es the Rankine{Hugoniot conditions and can therefore propagate on its own. Furthermore, we analyze the upstream turbulence and show that it is dominated by the right-hand resonant instability.},
doi = {10.1063/1.4971231},
journal = {Physics of Plasmas},
number = 12,
volume = 23,
place = {United States},
year = {2016},
month = {12}
}