Effect of eigenmode destabilisation by energetic ions on plasma rotation
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Date
2026
Authors
Yakovenko, Yurii
Tyshchenko, Margaryta
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Abstract
Momentum transport caused by spatial channelling – spatial transport of the energy of energetic ions by eigenmodes destabilised by these ions – is considered. The torques that result from the resonant interaction of trapped and passing energetic ions with an eigenmode are calculated and compared. The shearing rate of the toroidal flow that arises when an eigenmode transports toroidal angular momentum from the excitation region to the damping region is evaluated. The possibility that this flow can contribute to turbulence suppression is discussed.
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Keywords
fusion plasma, plasma flows, plasma instabilities, article
Citation
Yakovenko Y. V. Effect of eigenmode destabilisation by energetic ions on plasma rotation / Yurii V. Yakovenko and Margaryta H. Tyshchenko // Journal of Plasma Physics. - 2026. - Vol. 92, Issue 2. - Article number E54. - https://doi.org/10.1017/S0022377826101615