Nonlinear saturation of a toroidal Alfvén eigenmode via ion induced scattering is investigated in the short-wavelength gyrokinetic regime. It is found that the nonlinear evolution depends on the thermal ion β value. Here, β is the plasma thermal to magnetic pressure ratio. Both the saturation levels and associated energetic-particle transport coefficients are derived and estimated correspondingly.

Gyrokinetic theory of the nonlinear saturation of a toroidal Alfvén eigenmode

Zonca F.
2019

Abstract

Nonlinear saturation of a toroidal Alfvén eigenmode via ion induced scattering is investigated in the short-wavelength gyrokinetic regime. It is found that the nonlinear evolution depends on the thermal ion β value. Here, β is the plasma thermal to magnetic pressure ratio. Both the saturation levels and associated energetic-particle transport coefficients are derived and estimated correspondingly.
burning plasma; energetic particle; gyrokinetic theory; toroidal Alfvén eigenmode; transport
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/52553
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