Hybrid Simulation of a High-Beta Linear Plasma Column Applied with a Low Frequency Wave

Abstract

Wave excitation and propagation by applying a low frequency wave to a high-beta plasma are simulated by a 3-dimensional hybrid model, where ions are treated as particles while electrons are regarded as fluids. It is found that excitation of the toroidal magnetic field occurs outside the separatrix and the wave attenuated significantly near the separatrix. Although the attenuation due to an ion cyclotron resonance is conceivable, no temperature rise in the resonance region is observed. The attenuation condition is given here on the basis of a linear theory,and it shows a good agreement with hybrid simulation results in terms of the attenuation position.