1. Saturation of Alfvén modes in tokamaks.
- Author
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Roscoe White, Nikolai Gorelenkov, Marina Gorelenkova, Mario Podesta, Stephane Ethier, and Yang Chen
- Subjects
SATURATION (Chemistry) ,TOKAMAKS ,EIGENFUNCTIONS ,PLASMA Alfven waves ,MAGNETIC moments - Abstract
Growth of Alfvén modes driven unstable by a distribution of high energy particles up to saturation is investigated with a guiding center code, using numerical eigenfunctions produced by linear theory and a numerical high energy particle distribution, in order to make detailed comparison with experiment and with models for saturation amplitudes and the modification of beam profiles. Two innovations are introduced. First, a very noise free means of obtaining the mode-particle energy and momentum transfer is introduced, and secondly, a spline representation of the actual beam particle distribution is used. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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