Publication
Suprathermal electron studies in Tokamak plasmas by means of diagnostic measurements and modeling
Related publications (125)
Impact of microwave beam scattering by density fluctuations on the electron-cyclotron power deposition profile in tokamaks
Stefano Coda, Joan Decker, Oleg Krutkin, Umesh Kumar, Jean Arthur Cazabonne
Electron-cyclotron waves are a tool commonly used in tokamaks, in particular to drive current. Their ability to drive current in a very localized manner renders them an optimal tool for MHD mode mitigation. However, such applications require high accuracy ...
Bristol2024Design Progress of Structural Components of the EU DEMO EC Equatorial Launcher
Jean-Philippe Hogge, René Chavan
The EU DEMO Tokamak is foreseen to be equipped with an electron cyclotron (EC) system for plasma heating, magnetohydrodynamic (MHD) control, and thermal instability suppression. Up to six launchers will be installed into equatorial ports with the aim to in ...
Piscataway2024Full-discharge simulation and optimization with the RAPTOR code, from present tokamaks to ITER and DEMO
Tokamak devices aim to magnetically confine a hydrogen plasma at sufficiently high pressure to achieve net energy production from nuclear fusion of light isotopes. Predictive modeling and optimization is crucial for reliable operation of tokamak reactors, ...
EPFL2023An experimental and computational study of tokamak plasma turbulence
Turbulence driven by small-scale instabilities results in strong heat and particle transport, which significantly shortens the confinement time and prevents the formation of a self-sustained plasma reaction in magnetic confinement devices. Control and poss ...
EPFL2023Investigation of the interplay between Electron-Cyclotron waves, suprathermal electrons and turbulence in tokamak plasmas
Electron-Cyclotron waves are routinely used in tokamaks to heat the plasma and to drive current through the electron channel. Their unique ability to drive very localized current renders them the main foreseen tool for neoclassical tearing mode mitigation ...
EPFL2023Numerical tools for burning plasmas
Jonathan Graves, Laurent Villard, Emmanuel Lanti, Baruch Rofman, Alberto Bottino, Ben McMillan, Xiao Wang, Emanuele Poli
The software stack under development within a European coordinated effort on tools for burning plasma modelling is presented. The project is organised as a Task (TSVV Task 10) under the new E-TASC initiative (Litaudon et al 2022 Plasma Phys. Control. Fusio ...
IOP Publishing Ltd2023Experimental and numerical investigations of electron transport enhancement by electron-cyclotron plasma-wave interaction in tokamaks
Stefano Coda, Laurent Villard, Laurie Porte, Joan Decker, Giovanni Di Giannatale, Aylwin Iantchenko, Jean Arthur Cazabonne
Energy transfer from electron-cyclotron (EC) waves to the plasma is being routinely used in tokamaks to heat and drive current through the electron channel. Technical applications such as magnetohydrodynamic mode mitigation require power deposition with a ...
IOP Publishing Ltd2023Determination of MHD mode structures using soft x-ray diagnostics in TCV
Benoît Labit, Alexander Karpushov, Matteo Vallar
A forward modeling technique is developed for determining the characteristic features of observed MHD modes from the line-of-sight data of the soft x-ray (SXR) diagnostics with 64 vertical lines-of-sight in theTokamak à Configuration Variable tokamak. Usin ...
2023Electron-cyclotron resonance heating and current drive source for flux-driven gyrokinetic simulations of tokamaks
Stefano Coda, Laurent Villard, Stephan Brunner, Joan Decker, Jean Arthur Cazabonne
Electromagnetic waves that resonate with the cyclotron motion of electrons in a magnetized plasma can efficiently transfer their momentum and energy to the plasma. This is routinely used to heat or drive current in tokamak plasmas. The impact of this local ...
IOP Publishing Ltd2022Development of free-boundary equilibrium and transport solvers for simulation and real-time interpretation of tokamak experiments
To exploit fusion as a source of energy, a hot and dense confined plasma is needed. This is
achieved in tokamaks by actively controlling the plasma state meaning shape, position and
internal kinetic profiles. This thesis addresses two topics: the developme ...
EPFL2021