Verification of nonlinear particle simulation of radio frequency waves in tokamak

A. Kuley, Z. Lin, J. Bao, X. S. Wei, Y. Xiao, W. Zhang, G. Y. Sun, N. J. Fisch

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Abstract

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.

Original languageEnglish (US)
Article number102515
JournalPhysics of Plasmas
Volume22
Issue number10
DOIs
StatePublished - Oct 1 2015

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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    Kuley, A., Lin, Z., Bao, J., Wei, X. S., Xiao, Y., Zhang, W., Sun, G. Y., & Fisch, N. J. (2015). Verification of nonlinear particle simulation of radio frequency waves in tokamak. Physics of Plasmas, 22(10), [102515]. https://doi.org/10.1063/1.4934606