ORB5
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Related Articles from SNS
Nonlinear oscillations of the amplitude of energetic-particle induced geodesic acoustic modes
arXiv:2606.09561v1 Announce Type: new Abstract: Energetic particle induced geodesic acoustic modes (EGAMs) are axisymmetric perturbations of the radial electric field in tokamak plasmas. They are driven unstable by the phase space nonuniformity of a population of energetic particles (EP). In this paper, the nonlinear oscillation in the amplitude of the energetic-particle induced geodesic acoustic modes is studied by means of the gyrokinetic particle-in-cell code ORB5.