EFDA-JET-CP(05)01/09

Numerical Simulation of Ion Cyclotron Heating Experiments with Coupled Maxwell and Quasilinear-Fokker-Planck Solvers

The code TORIC [1] solving Maxwell equations in toroidal axisymmetric plasmas in the Ion Cyclotron (IC) frequency range has been integrated in a package which includes: (1) an interface to the experimental data (Grad-Shafranov MHD configuration, density and temperature profiles), (2) the interface QLDCE [2] to a quasilinear Fokker-Planck solver for the electrons, (3) the quasilinear Fokker-Planck solver SSFPQL [3] for the ions, and (4) a subroutine which re-evaluates the coefficients of the wave equations taking into account the suprathermal anisotropic tails of minority ions predicted by SSFPQL, so that their effects on wave propagation and absorption can be estimated by iterating TORIC. This package allows somewhat simplified but essentially selfconsistent simulations of heating and Current Drive (CD) in this frequency domain. Applications to Fast Wave CD have been made in [2]. Here we present the analysis of two IC heating experiments in ASDEX Upgrade (AUG) and in JET.
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EFDC050109 764.81 Kb