Linear and nonlinear simulations of high-order harmonics q= 1 energetic particle modes
excited by trapped energetic particles in tokamaks are carried out using kinetic …

A new branch of the m/n= 2/1 fishbone-like mode is found to be excitated by trapped
energetic ions when the tearing mode is unstable. An energy-principle-based dispersion …

The effect of electron cyclotron resonance heating (ECRH) on fishbone instability is studied
based on the generalized energy principle. Off-axis ECRH plays a stabilizing role in …

The linear properties of the global instability induced by the circulating EPs with double
rational surfaces are investigated by solving the eigenvalue equation. The top-hat structure …

Abstract Effects of q-profile on energetic particle (EP) driven instabilities are investigated by
solving the eigenvalue equation. It has been found that the radial structure of the m/n= 2/1 …

Transport of fast ions is a crucial issue during the operation of ITER. Redistribution of neutral
beam injection (NBI) fast ions by the ideal internal magnetohydrodynamic (MHD) instabilities …

In this paper, we analyze the modification of fast particles on the nonlinear radial
displacement of m= 1 internal kink mode with a shoulder-like equilibrium current …