Quasilinear damping of ion Bernstein waves on the harmonic resonant layer

A. Cardinali, C. Castaldo, R. Cesario, F. De Marco

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Abstract

The damping of an ion Bernstein wave (IBW) across a resonant layer of the minority species of the plasma is calculated within the framework of quasilinear theory. The model uses the analytical. solution of the one-dimensional Fokker-Planck equation for the ion distribution function. A greater reduction of the damping has been found in this case compared with the one obtained with the linear model. This allows the wave to penetrate further towards the plasma core. In addition, a particle flux induced by the sharp spatial gradient of the distribution function across the resonant layer, due to the IBW field, has also been evaluated. This shows that modification of the distribution function generates a flux of particles from the outside which tends to increase the particle density in the vicinity of the resonance itself. © 1998 American Institute of Physics.
Original languageEnglish
Pages (from-to)2871 - 2877
Number of pages7
JournalPhysics of Plasmas
Volume5
Issue number8
DOIs
Publication statusPublished - 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Cardinali, A., Castaldo, C., Cesario, R., & De Marco, F. (1998). Quasilinear damping of ion Bernstein waves on the harmonic resonant layer. Physics of Plasmas, 5(8), 2871 - 2877. https://doi.org/10.1063/1.873008