PHASE MIXING BY THE GUIDING CENTRE DRIFTS OF CHARGED PARTICLES IN A PLASMA
Thermal dispersion of the guiding centre drifts in a plasma leads to phase-mixing and kinetic damping of macroscopic plasma perturbations. A simple illustration is given by the drifts of a dilute plasma in an inhomogeneous magnetic field. This results in a substantial kinetic damping on a time scale only slightly longer than that of the Larmor period of gyration. Similar results are likely to be obtained in more complicated situations such as those of a dense, non- dissipative, high-beta plasma, at least as far as orders of magnitude are concerned. Thus the present phase mixing effect is expected to have a substantial general influence on the dynamics and stability of macroscopic plasma perturbations in high-beta systems with strong magnetic field inhomogeneities.
Bibliographic Reference: REPORT TRITA-PFU-02-88, 1988, AVAILABILITY: THE ROYAL INSTITUTE OF TECHNOLOGY, STOCKHOLM
Record Number: 1989126099000 / Last updated on: 1989-05-01
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