A Global Simulation Study of ICRF Heating by TASK/WM and GNET in Toroidal Plasmas
نویسندگان
چکیده
A global simulation code is developed to study the ICRF heating combining two global simulation codes: a full wave field solver, TASK/WM, and a drift kinetic equation solver, GNET. The both codes can treat a 3-D magnetic configuration based on the MHD equilibrium by VMEC code. The developed code is applied to the ICRF minority heating in a simple circular tokamak. The ICRF wave propagation is solved by TASK/WM and the obtained RF electric field is used to solve the drift kinetic equation by GNET. The analyses are carried out in the on and off axis heating cases. The characteristics of energetic ion distribution in the phase space are investigated. It is found that an asymmetry in the parallel velocity distribution appears due to the finite orbit width effect and that the asymmetry direction depends on the minor radius position.
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