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Title: Gyrokinetic theory and simulation of mirror instability

Abstract

The finite Larmor radius (FLR) effects play an important role in determining the threshold and the growth rate of the mirror instability. In this study, a general dispersion relation of the mirror mode with FLR effects is derived by using gyrokinetic theory. It shows that both the FLR effects and the coupling to the slow sound wave are stabilizing. A gyrokinetic particle simulation code has been developed for simulation of compressible magnetic turbulence driven by the mirror instability. Results of the linear simulation of mirror mode agree well with the analytic dispersion relation.

Authors:
; ;  [1]
  1. Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States)
Publication Date:
OSTI Identifier:
20974920
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 4; Other Information: DOI: 10.1063/1.2721074; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DISPERSION RELATIONS; ION ACOUSTIC WAVES; LARMOR RADIUS; MIRRORS; PLASMA; PLASMA INSTABILITY; PLASMA SIMULATION; SOUND WAVES; TURBULENCE

Citation Formats

Qu Hongpeng, Lin Zhihong, and Chen Liu. Gyrokinetic theory and simulation of mirror instability. United States: N. p., 2007. Web. doi:10.1063/1.2721074.
Qu Hongpeng, Lin Zhihong, & Chen Liu. Gyrokinetic theory and simulation of mirror instability. United States. doi:10.1063/1.2721074.
Qu Hongpeng, Lin Zhihong, and Chen Liu. Sun . "Gyrokinetic theory and simulation of mirror instability". United States. doi:10.1063/1.2721074.
@article{osti_20974920,
title = {Gyrokinetic theory and simulation of mirror instability},
author = {Qu Hongpeng and Lin Zhihong and Chen Liu},
abstractNote = {The finite Larmor radius (FLR) effects play an important role in determining the threshold and the growth rate of the mirror instability. In this study, a general dispersion relation of the mirror mode with FLR effects is derived by using gyrokinetic theory. It shows that both the FLR effects and the coupling to the slow sound wave are stabilizing. A gyrokinetic particle simulation code has been developed for simulation of compressible magnetic turbulence driven by the mirror instability. Results of the linear simulation of mirror mode agree well with the analytic dispersion relation.},
doi = {10.1063/1.2721074},
journal = {Physics of Plasmas},
number = 4,
volume = 14,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}