Magnetohydrodynamic ballooning instabilities excited by energetic trapped particles
- 1 May 1985
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 28 (5) , 1359-1365
- https://doi.org/10.1063/1.864968
Abstract
A new branch of magnetohydrodynamic ballooning modes is shown to be destabilized by energetic trapped particles. Both the real frequencies and growth rates of the instabilities are comparable to the trapped‐particle precession frequencies. The theoretical results are also shown to be consistent with the high‐frequency (∼100 kHz) oscillations observed during the high‐power beam‐injection experiments in the tokamak experiment PDX.Keywords
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