Role of Alfvén instabilities in energetic ion transport

S. Bernabei, M.G. Bell, R. Budny, D. Darrow, E.D. Fredrickson, N. Gorelenkov, J.C. Hosea, R. Majeski, E. Mazzucato, R. Nazikian, C.K. Phillips, J.H. Rogers, G. Schilling, R. White, J.R. Wilson, F. Zonca, S. Zweben

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Abstract

Experiments with plasma heating by waves at the ion cyclotron resonance of a minority species have shown that the heating efficiency degrades above a certain power threshold. It is found that this threshold is due to the destabilization of a branch of shear Alfvén waves, the Energetic Particle Modes, which causes a diffusive loss of fast ions. These modes not only play a fundamental role in the transport of the fast ions, but appear closely related to the formation of giant sawteeth. © 1999 American Institute of Physics.
Original languageEnglish
Pages (from-to)1880 - 1884
Number of pages5
JournalPhysics of Plasmas
Volume6
Issue number5 I
DOIs
Publication statusPublished - 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Bernabei, S., Bell, M. G., Budny, R., Darrow, D., Fredrickson, E. D., Gorelenkov, N., ... Zweben, S. (1999). Role of Alfvén instabilities in energetic ion transport. Physics of Plasmas, 6(5 I), 1880 - 1884. https://doi.org/10.1063/1.873446