Gyrokinetics Simulation of Energetic Particle Turbulence and Transport

Diamond, Patrick H.

关键词: PHASE SPACE;    PLASMA DRIFT;    PLASMA WAVES;    PRECESSION;    RESONANCE;    SCATTERING;    SIMULATION;    TRANSPORT;    TURBULENCE nonlinear wave-particle interaction;    phase space structures;    precession resonance;   

DOI  :  10.2172/1024908
RP-ID  :  DOE/ER/54983
PID  :  OSTI ID: 1024908
Others  :  TRN: US1201516

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Progress in research during this year elucidated the physics of precession resonance and its interaction with radial scattering to form phase space density granulations. Momentum theorems for drift wave-zonal flow systems involving precession resonance were derived. These are directly generalizable to energetic particle modes. A novel nonlinear, subcritical growth mechanism was identified, which has now been verified by simulation. These results strengthen the foundation of our understanding of transport in burning plasmas