Shear-Alfven Waves in Gyrokinetic Plasmas

[摘要] It is found that the thermal fluctuation level of the shear-Alfven waves in a gyrokinetic plasma decreases with plasma b(* cs2/uA2), where cs is the ion acoustic speed and uA is the Alfven velocity. This unique thermodynamic property based on the fluctuation-dissipation theorem is verified in this paper using a new gyrokinetic particle simulation scheme, which splits the particle distribution function into the equilibrium part as well as the adiabatic and nonadiabatic parts.

[发布日期] 2000-10-18 [发布机构] Princeton University. Plasma Physics Laboratory.

[关键词] 70 Plasma Physics And Fusion Technology;Computerized Simulation;Distribution Functions;Thermodynamics;Particles