High-, Sawtooth-Free Tokamak Operation Using Energetic Trapped Particles
RB White, MN Bussac, F Romanelli - Physical review letters, 1989 - APS
RB White, MN Bussac, F Romanelli
Physical review letters, 1989•APSIt is shown that a population of high-energy trapped particles, such as that produced by ion
cyclotron heating in tokamaks, can result in a plasma completely stable to both sawtooth
oscillations and the fishbone mode. The stable window of operation increases in size with
plasma temperature and with trapped-particle energy, and provides a means of obtaining a
stable plasma with high current and high β.
cyclotron heating in tokamaks, can result in a plasma completely stable to both sawtooth
oscillations and the fishbone mode. The stable window of operation increases in size with
plasma temperature and with trapped-particle energy, and provides a means of obtaining a
stable plasma with high current and high β.
Abstract
It is shown that a population of high-energy trapped particles, such as that produced by ion cyclotron heating in tokamaks, can result in a plasma completely stable to both sawtooth oscillations and the fishbone mode. The stable window of operation increases in size with plasma temperature and with trapped-particle energy, and provides a means of obtaining a stable plasma with high current and high β.
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