Nonlinear particle simulation of ion cyclotron waves in toroidal geometry

Journal Article · Thu Dec 10 04:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4936506· OSTI ID:22496206

Lin, Z. ^[1]; Bao, J. ^[2]; Wei, X. S.; Xiao, Y. ^[3]

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1. Department of Physics and Astronomy, University of California Irvine, CA-92697 (United States)
2. Fusion Simulation Center, Peking University, Beijing (China)
3. Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou (China)

Global particle simulation model has been developed in this work to provide a first-principles tool for studying the nonlinear interactions of radio frequency (RF) waves with plasmas in tokamak. In this model, ions are considered as fully kinetic particles using the Vlasov equation and electrons are treated as guiding centers using the drift kinetic equation with realistic electron-to-ion mass ratio. Boris push scheme for the ion motion has been developed in the toroidal geometry using magnetic coordinates and successfully verified for the ion cyclotron and ion Bernstein waves in global gyrokinetic toroidal code (GTC). The nonlinear simulation capability is applied to study the parametric decay instability of a pump wave into an ion Bernstein wave side band and a low frequency ion cyclotron quasi mode.

• OSTI ID: 22496206
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1689; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BERNSTEIN MODE
BOLTZMANN-VLASOV EQUATION
DECAY INSTABILITY
ELECTRONS
GEOMETRY
INTERACTIONS
ION CYCLOTRON-RESONANCE
IONS
KINETIC EQUATIONS
NONLINEAR PROBLEMS
PARTICLES
PLASMA
PLASMA WAVES
PUMPS
RADIOWAVE RADIATION
SIMULATION
TOKAMAK DEVICES