Publication
Effects of global MHD instability on operational high beta-regime in LHD
Publications associées (52)
Magnetohydrodynamic theory of the global structure and magnetic components of geodesic acoustic modes in tokamaks
Ideal magnetohydrodynamic (MHD) theory is used to investigate some of the fundamental properties of the geodesic acoustic continuum modes (GAMs) in tokamaks, including their global structure, their associated magnetic components both inside and outside the ...
IOP2016Stability of Tokamak and RFP Plasmas with an Extended Region of Low Magnetic Shear
It has been observed experimentally that magnetically confined plasmas, characterised by the safety factor q with a small or slightly inverted magnetic shear, have good confinement properties. Such plasmas typically have no internal transport barrier, oper ...
EPFL2015Recent ASDEX Upgrade research in support of ITER and DEMO
Olivier Sauter, Basil Duval, Stefano Coda, Timothy Goodman, Alessandro Pau, Federico Alberto Alfredo Felici, Laurie Porte, Haomin Sun, Yann Camenen, Marco Wischmeier, Nicola Vianello, Alberto Bottino, Emiliano Fable, Andrea Scarabosio, Doohyun Kim, Dávid Wágner, Thomas Binderup Jensen, Heinz Mueller, Donghyun Kim, Xiao Wang, Bernhard Sieglin, Otto Asunta, Hartmut Zohm, Emanuele Poli, Gergely Papp, Giovanni Tardini
Recent experiments on the ASDEX Upgrade tokamak aim at improving the physics base for ITER and DEMO to aid the machine design and prepare efficient operation. Type I edge localized mode (ELM) mitigation using resonant magnetic perturbations (RMPs) has been ...
Iop Publishing Ltd2015Energetic ion dynamics and confinement in 3D saturated MHD configurations
In the following theoretical and numerically oriented work, a number of findings have been assembled. The newly devised VENUS-LEVIS code, designed to accurately solve the motion of energetic particles in the presence of 3D magnetic fields, relies on a non- ...
EPFL2015On the criteria guiding the design of the upper electron-cyclotron launcher for ITER
Olivier Sauter, Timothy Goodman, Hartmut Zohm, Emanuele Poli
Electron cyclotron waves injected from an antenna located in the upper part of the vessel will be employed in ITER to control MHD instabilities, particularly neoclassical tearingmodes (NTMs). The derivation of the NTM stabilization criteria used up to now ...
EDP Sciences2015On the criteria guiding the design of the upper electron-cyclotron launcher for ITER
Olivier Sauter, Timothy Goodman, Hartmut Zohm, Emanuele Poli
Electron cyclotron waves injected from an antenna located in the upper part of the vessel will be employed in ITER to control MHD instabilities, particularly neoclassical tearingmodes (NTMs). The derivation of the NTM stabilization criteria used up to now ...
E D P Sciences2015Edge Localized Mode Control in TCV
The Tokamak concept, based on magnetic confinement of a hydrogen plasma, is one of today's most promising paths to energy production by nuclear fusion. The experimental scenarios leading to the largest fusion rate are based on a high confinement plasma reg ...
EPFL2012Equilibrium and stability in a heliotron with anisotropic hot particle slowing-down distribution
Jonathan Graves, Wilfred Anthony Cooper
The equilibrium and linear fluid Magnetohydrodynamic (MHD) stability in an inward-shifted large helical device heliotron configuration are investigated with the 3D ANIMEC and TERPSICHORE codes, respectively. A modified slowing-down distribution function is ...
American Institute of Physics2012MHD properties in the core of ITER-like hybrid scenarios
Jonathan Graves, Wilfred Anthony Cooper, Federico David Halpern, Daniele Brunetti
MHD stability is studied in the frame of ITER like hybrid scenarios, characterized by weak reversed shear, with particular attention on ideal internal kink modes and infernal mode stability. Numerical simulations for ITER like equilibria, with hollow q pro ...
Iop Publishing Ltd2012MHD equilibrium and stability of tokamaks and RFP systems with 3D helical cores
Olivier Sauter, Jonathan Graves, Wilfred Anthony Cooper
Bifurcated magnetohydrodynamic (MHD) equilibrium states are computed for ITER hybrid scenario and RFX-mod SHAx configurations with very flat or reversed core magnetic shear conditions. In the ITER studies, the minimum inverse rotational transform qmin is n ...
IOP Publishing2011