Our modern society requires environmentally friendly solutions for energy production.
Energy can be released not only from the fission of heavy nuclei but also from the fusion of …

Dynamics of shear Alfvén waves and energetic particles are crucial to the performance of
burning fusion plasmas. This article reviews linear as well as nonlinear physics of shear …

The area of energetic particle (EP) physics in fusion research has been actively and
extensively researched in recent decades. The progress achieved in advancing and …

A general theoretical framework for investigating the nonlinear dynamics of phase space
zonal structures is presented in this work. It is then, more specifically, applied to the limit …

We present an overview on one issue of practical interest for burning plasmas, ie whether
fast ions and charged fusion products are sufficiently well confined such that they transfer …

Experiments in the DIII-D tokamak show that fast-ion transport suddenly becomes stiff above
a critical threshold in the presence of many overlapping small-amplitude Alfvén eigenmodes …

The change in nonlinear energetic particle mode (EPM) dynamics that accompanies the
transition from weak to strong energetic ion transport is discussed in this work. It is …

Energetic particle (EP) transport from local high-n toroidal Alfvén eigenmodes (TAEs) and
energetic particle modes (EPMs) is simulated with a gyrokinetic code. Linear and nonlinear …

We present a series of numerical simulation experiments set up to illustrate the fundamental
physics processes underlying the nonlinear dynamics of Alfvénic modes resonantly excited …

Shear Alfvén wave (SAW)/drift Alfvén wave (DAW) fluctuations can be destabilized by
energetic particles (EPs) as well as thermal plasma components, which play a key role in the …