Formulation and verification of simulation model near the ion cyclotron frequency.

A simulation model using fully kinetic ions and drift kinetic electrons in toroidal geometry (such as tokamaks), has been formulated and verified for simulations of waves with frequencies comparable or higher than ion cyclotron frequency, such as ion cyclotron emission (ICE) and global Alfven eigenmode (GAE). Quasi-neutrality condition is used to remove the undesired higher frequency electron plasma waves. The kinetic electron model can be reduced to the massless fluid electron, which recover the modified shear Alfven wave (SAW) and generalized ion Bernstein waves (IBW). The model further reduces to shear Alfven wave (SAW) and compressional Alfven waves (CAW) when ion kinetic effects are removed. Implementation and verification in the gyrokinetic toroidal code (GTC) will be reported.