Shear-Alfven Waves in Gyrokinetic Plasmas

W.W.Lee ; J.L.V.Lewandowski ; Hahm, T.S. ; Lin, Z.

Princeton University. Plasma Physics Laboratory.

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

DOI  :  10.2172/765443
RP-ID  :  PPPL-3495
RP-ID  :  AC02-76CH03073
RP-ID  :  765443

美国|英语

来源: UNT Digital Library

【 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.