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Title: Verification of nonlinear particle simulation of radio frequency waves in tokamak

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.
Authors:
;  [1] ;  [1] ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6] ;  [7]
  1. Department of Physics and Astronomy, University of California Irvine, California 92697 (United States)
  2. (China)
  3. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
  4. Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  5. Department of Physics, Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005 (China)
  6. Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540 (United States)
  7. (United States)
Publication Date:
OSTI Identifier:
22486437
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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