Excitation of Alfvén waves by fast particles in a finite pressure plasma of adiabatic traps

BI Meerson, AB Mikhallovskii, OA Pokhotelov

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Abstract

Resonant excitation of Alfvén waves by fast particles in a finite pressure plasma in a non-uniform magnetic field is studied. Plasma compressibility in the wave field is determined both by the curvature of the magnetic lines of force and finite Larmor radius of fast particles. A general expression for the instability growth rate is obtained and analyzed; the applicability of the results obtained in the previous paper has also been studied. The finite pressure stabilization of the trapped particles instability has been found. The bounce-resonance effects are analyzed.

Original languageAmerican English
Pages (from-to)137-148
Number of pages12
JournalJournal of Plasma Physics
Volume20
Issue number1
DOIs
StatePublished - 1978

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