Publication
Initial TCV operation with a baffled divertor
Publications associées (33)
Divertor turbulent transport in the single null and snowflake in the TCV tokamak
Davide Galassi, Cedric Kar-Wai Tsui, Curdin Tobias Wüthrich
The relative importance of divertor radial turbulent particle fluxes is considered by comparing it against the fluxes in the main-chamber outer midplane (OMP) in a variety of conditions and divertor geometries in the tokamak à configuration variable. Withi ...
2024Experimental study and interpretative modelling of the Power Exhaust in Configurations with Multiple X-Points in TCV
Sophie Danielle Angelica Gorno
Nuclear fusion presents a promising clean energy source to mitigate future energy crises, with magnetic confinement fusion well-positioned to provide a baseload scenario to power future reactors. The unmitigated power exhaust of such reactors threatens its ...
EPFL2024An 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 ...
EPFL20233D Characterisation of Turbulent Plasma Filaments Using Gas Puff Imaging in the Tokamak à Configuration Variable
A key challenge for the development of fusion reactors based on magnetic confinement, such as tokamaks and stellarators, is the control of the turbulent processes. The most prominent feature of turbulence in the Scrape-Off Layer (SOL), the volume between t ...
EPFL2023Rapid optimization of stationary tokamak plasmas in RAPTOR: demonstration for the ITER hybrid scenario with neural network surrogate transport model QLKNN
Olivier Sauter, Federico Alberto Alfredo Felici, Michele Marin, Simon Van Mulders
This work presents a fast and robust method for optimizing the stationary radial distribution of temperature, density and parallel current density in a tokamak plasma and its application to first-principle-based modeling of the ITER hybrid scenario. A new ...
2021Physics and applications of three-ion ICRF scenarios for fusion research
Henri Weisen, Javier García Hernández, Mikhail Maslov, Samuele Mazzi
This paper summarizes the physical principles behind the novel three-ion scenarios using radio frequency waves in the ion cyclotron range of frequencies (ICRF). We discuss how to transform mode conversion electron heating into a new flexible ICRF technique ...
AMER INST PHYSICS2021A fast-moving Langmuir probe array for the divertor of the Tokamak à Configuration Variable
In next step tokamaks such as ITER and future fusion power plants, wall materials will be subjected to considerably higher heat and particle fluxes than in present-day machines. Maintaining plasma facing components in good condition and simultaneously assu ...
EPFL2021Real-time feedback control of the impurity emission front in tokamak divertor plasmas
Basil Duval, Christian Gabriel Theiler, Federico Alberto Alfredo Felici, Cristian Galperti, Artur Perek
In magnetic confinement thermonuclear fusion the exhaust of heat and particles from the core remains a major challenge. Heat and particles leaving the core are transported via open magnetic field lines to a region of the reactor wall, called the divertor. ...
NATURE RESEARCH2021Model-based optimization of magnetic control in the TCV tokamak: design and experiments
Thermonuclear controlled fusion is a promising answer to the current energy and climate issues, providing a safe carbon-free source of energy which is virtually inexhaustible. In magnetic confinement thermonuclear fusion based on tokamak reactors, hydrogen ...
EPFL2021First global simulations of plasma turbulence in a stellarator with an island divertor
Paolo Ricci, Joaquim Loizu Cisquella, António João Caeiro Heitor Coelho
We present the results of 3D, flux-driven, global, two-fluid electrostatic turbulence simulations in a 5-field period stellarator with an island divertor. The numerical simulations are carried out with the GBS code, which solves the two-fluid drift-reduced ...
2021