Global particle-in-cell simulations of fast-particle effects on shear Alfv́n waves

Abstract

This paper reports self-consistent global linear gyrokinetic particle-in-cell simulations of shear Alfv́n waves destabilized by fast particles in tokamak geometry. Resonant excitation of toroidal Alfv́n eigenmodes by fast particles and their transition to energetic particle modes (when the fast-particle drive is large enough) has been observed in the simulations. © 2009 American Institute of Physics.