On the stability of the internal kink mode in the banana regime

G. Fogaccia, F. Romanelli

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Abstract

The stability of the internal kink mode is investigated taking into account the kinetic response associated to the trapped thermal ions. Ion-ion collisions and diamagnetic effects in the layer are also considered. A significant stabilizing contribution is obtained, even at low-β values, on the mode, which might be stable, on present experiments, even though predicted unstable according to the Bussac criterion [Bussac et al., Phys. Rev. Lett. 35, 1638 (1975)]. In addition, a trapped-ion instability is found, characterized by mode frequency of the order of the trapped-ion bounce-averaged magnetic drift frequency. © 1995 American Institute of Physics.
Original languageEnglish
Pages (from-to)227 - 240
Number of pages14
JournalPhysics of Plasmas
Volume2
Issue number1
DOIs
Publication statusPublished - 1995
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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