Verification of nonlinear particle simulation of radio frequency waves in tokamak

Journal Article · Thu Oct 15 04:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4934606· OSTI ID:22486437

Lin, Z. ^[1]; Bao, J. ^[1]; Wei, X. S.; Xiao, Y. ^[2]; Zhang, W. ^[3]; Sun, G. Y. ^[4]; Fisch, N. J. ^[5]

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1. Department of Physics and Astronomy, University of California Irvine, California 92697 (United States)
2. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
3. Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
4. Department of Physics, Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005 (China)
5. Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540 (United States)

Nonlinear simulation model for radio frequency waves in fusion plasmas has been developed and verified using fully kinetic ion and drift kinetic electron. Ion cyclotron motion in the toroidal geometry is implemented using Boris push in the Boozer coordinates. Linear dispersion relation and nonlinear particle trapping are verified for the lower hybrid wave and ion Bernstein wave (IBW). Parametric decay instability is observed where a large amplitude pump wave decays into an IBW sideband and an ion cyclotron quasimode (ICQM). The ICQM induces an ion perpendicular heating, with a heating rate proportional to the pump wave intensity.

• OSTI ID: 22486437
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 10 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BERNSTEIN MODE
DECAY INSTABILITY
DISPERSION RELATIONS
ELECTRONS
HEATING RATE
ION CYCLOTRON-RESONANCE
IONS
LOWER HYBRID CURRENT DRIVE
NONLINEAR PROBLEMS
PARTICLES
PLASMA WAVES
RADIOWAVE RADIATION
SIMULATION
TOKAMAK DEVICES
TOROIDAL CONFIGURATION
TRAPPING
VERIFICATION