133 citations · 578 across the 50 of their papers we have counts for
6 papers · 1 filter
Effect of temperature anisotropy on the dynamics of geodesic acoustic modes
J. N. Sama, A. Biancalani, A. Bottino +7
In this work, we revisit the linear gyro-kinetic theory of geodesic acoustic modes (GAMs) and derive a general dispersion relation for an arbitrary equilibrium distribution functio…
Gyrokinetic simulations of turbulence and zonal flows driven by steep profile gradients using a delta-f approach with an evolving background Maxwellian
Moahan Murugappan, Laurent Villard, Stephan Brunner +2
Long global gyrokinetic turbulence simulations are particularly challenging in situations where the system deviates strongly from its initial state and when fluctuation level are h…
Gyrokinetic particle-in-cell simulations of electromagnetic turbulence in the presence of fast particles and global modes
A. Mishchenko, A. Bottino, T. Hayward-Schneider +13
Global simulations of electromagnetic turbulence, collisionless tearing modes, and Alfven Eigenmodes in the presence of fast particles are carried out using the gyrokinetic particl…
Multi-scale analysis of global electromagnetic instabilities in ITER Pre-Fusion-Power Operation plasmas
T. Hayward-Schneider, Ph. Lauber, A. Bottino +1
Global electromagnetic gyrokinetic simulations are performed with the Particle-in-Cell code ORB5 for an ITER Pre-Fusion-Power-Operation (PFPO) plasma scenario, with half-field (2.6…
Gyrokinetic modelling of the Alfvén mode activity in ASDEX Upgrade with an isotropic slowing-down fast-particle distribution
Francesco Vannini, Alessandro Biancalani, Alberto Bottino +8
In the present paper, the evolution of the Alfvén modes is studied in a realistic ASDEX Upgrade equilibrium by analysing the results of simulations with the global, electromagnetic…
Gyrokinetic modelling of anisotropic energetic particle driven instabilities in tokamak plasmas
Brando Rettino, Thomas Hayward-Schneider, Alessandro Biancalani +5
Energetic particles produced by neutral beams are observed to excite energetic-particle-driven geodesic acoustic modes (EGAMs) in tokamaks. We study the effects of anisotropy of di…