Geodesic acoustic modes (GAMs) are ubiquitous oscillatory flow phenomena observed in
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …

The negative triangularity tokamak (NTT) is a unique reactor concept based on'power-
handling-first'philosophy with the heat exhaust problem as the leading concern. The present …

Nonlinear multiscale gyrokinetic simulations of a Joint European Torus edge pedestal are
used to show that electron-temperature-gradient (ETG) turbulence has a rich three …

In this work, the first nonlinear particle-in-cell simulations carried out in a stellarator with the
global gyrokinetic code EUTERPE using adiabatic electrons and realistic plasma …

The work reported in this paper addresses two aspects. In the first part, numerical
simulations are conducted to examine the impact of magnetic equilibrium sha** …

Long global gyrokinetic turbulence simulations are particularly challenging in situations
where the system deviates strongly from its initial state and when fluctuation levels are high …

The interplay between toroidal drift-wave turbulence and tokamak profiles is investigated
using a wave-kinetic description. The coupled system is used to investigate the interplay …

In the context of global gyrokinetic simulations of turbulence using a particle-in-cell
framework, verifying the delta-f assumption with a fixed background distribution becomes …

On the road to fusion energy production, many alternative scenarios have been investigated
in order to address certain well-known problems of tokamak devices; among which …

Geodesic acoustic modes (GAMs) are a fundamental part of turbulence and zonal-flow
dynamics in tokamaks. They exhibit simple yet non-trivial dispersive and dissipative …