Real-Space Quasilinear Theory of Drift Waves in a Sheared Magnetic Field

概要

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A real-space quasilinear theory is developed for the collisional and the collisionlessdrift waves in a plasma with a sheared magnetic field of stab get>metry. The equationobtained describes the interaction between many localized modes around differentrattonal surfaces through the density modulation of the energy :source region of eachmode. The wave amplitudes approach to the stationary values through a relaxationoscillation process. When the width ,X'. of the energy source region becomes comparableto the spacung Ax of the two adjacent rational surfaces, diffusion coefficient due to thewave is enhanced over the classical value, while the nonlocal heat transport due to thewave propagatuon us shown to be negligible compared to that associated with thediffusion process.
社団法人日本物理学会の論文
1977-08-15