Publications associées à Basic investigations of electrostatic turbulence and its interaction with plasma and suprathermal ions in a simple magnetized toroidal plasma

Turbulence and flows in the plasma boundary of snowflake magnetic configurations

Paolo Ricci, Louis Nicolas Stenger, Maurizio Giacomin

The power exhaust through the scrape-off layer (SOL) in fusion reactors is expected to be significantly higher than in ITER, thus questioning the extrapolation of the ITER exhaust solution to these devices. The snowflake (SF) magnetic configuration is one ...

2020

Nonlinear dynamics of energetic-particle driven geodesic acoustic modes in ASDEX Upgrade

Laurent Villard, Emmanuel Lanti, Alberto Bottino, Noé Thomas Elie Ohana, Emanuele Poli

Turbulence in tokamaks generates radially sheared zonal flows. Their oscillatory counterparts, geodesic acoustic modes (GAMs), appear due to the action of the magnetic field curvature. The GAMs can be driven unstable by an anisotropic energetic particle (E ...

AMER INST PHYSICS2020

An Algorithm for Toroidal Field Harmonics Computation in Arbitrary Magnetic Configurations

Luca Bottura, Enrico Felcini

Toroidal magnetic configurations are widely exploited in industry and scientific research, involving a vast spectrum of applications, such as thermonuclear fusion, particle detectors, SMES systems and medical devices. To properly design and analyse these s ...

2020

Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

Jonathan Graves, David Pfefferlé, Mike Machielsen, Adnan Ali, Yu Gao

The neutral beam deposition model in the BEAMS3D code is validated against neutral beam attenuation data from Wendelstein 7-X (W7-X). A set of experimental discharges where the neutral beam injection system of W7-X was utilized were reconstructed. These di ...

IOP PUBLISHING LTD2020

RF plasma simulations using the TOMATOR 1D code: a case study for TCV helium ECRH plasmas

Stefano Coda

The 1-dimensional reaction-diffusion-convection code TOMATOR-1D describes plasma production by RF waves inside a tokamak using the Braginskii continuity and heat balance equations. The model simulates self-consistent radial density and temperature profiles ...

2020

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Basil Duval, Holger Reimerdes, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Sophie Danielle Angelica Gorno, Claudia Colandrea, Marco Wischmeier, Cedric Kar-Wai Tsui, Mirko Wensing, Hugo De Oliveira

Recent TCV experiments confirm the predicted formation of an electric potential well, below the magnetic X-point, in configurations with unfavorable

B_t

field direction (ion

\nabla B

drift away from the divertor), that substantially reshapes the typica ...

2020

Nonlinear gyrokinetic PIC simulations in stellarators with the code EUTERPE

Laurent Villard, Eduardo Sanchez, Alberto Bottino

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 parameters are reported. Several studies are conducted with the aim of enabl ...

CAMBRIDGE UNIV PRESS2020

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Laurent Villard, Andrei Martynov

Abandoning the assumption of nested magnetic surfaces in tokamak plasma expands the field of research and opens up new approaches for both theoretical and experimental plasma physics. The computer code KINX for calculations of the ideal MHD stability was d ...

PLEIADES PUBLISHING INC2019

Tokamak Edge Plasma Turbulence Interaction with Magnetic X-Point in 3D Global Simulations

Davide Galassi, Eric Serre

Turbulence in the edge plasma of a tokamak is a key actor in the determination of the confinement properties. The divertor configuration seems to be beneficial for confinement, suggesting an effect on turbulence of the particular magnetic geometry introduc ...

2019

Modelling of non-linear edge harmonic oscillations and the effect of non-axisymmetric magnetic coils

Jonathan Graves, Wilfred Anthony Cooper, Daniele Brunetti, Andreas Kleiner, Guillermo Bustos Ramirez

Quiescent H-mode (QH-mode) operation is highly desirable relative to the well known H- mode operation because it allows for high energy density in the core as well as potentially im- proved confinement of energy and particles. A feature of QH-mode is that ...

European Physical Society2019

Basic investigations of electrostatic turbulence and its interaction with plasma and suprathermal ions in a simple magnetized toroidal plasma

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Turbulence and flows in the plasma boundary of snowflake magnetic configurations

Nonlinear dynamics of energetic-particle driven geodesic acoustic modes in ASDEX Upgrade

An Algorithm for Toroidal Field Harmonics Computation in Arbitrary Magnetic Configurations

Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

RF plasma simulations using the TOMATOR 1D code: a case study for TCV helium ECRH plasmas

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Nonlinear gyrokinetic PIC simulations in stellarators with the code EUTERPE

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Tokamak Edge Plasma Turbulence Interaction with Magnetic X-Point in 3D Global Simulations

Modelling of non-linear edge harmonic oscillations and the effect of non-axisymmetric magnetic coils

Turbulence and flows in the plasma boundary of snowflake magnetic configurations

Nonlinear dynamics of energetic-particle driven geodesic acoustic modes in ASDEX Upgrade

Modelling of non-linear edge harmonic oscillations and the effect of non-axisymmetric magnetic coils

Tokamak Edge Plasma Turbulence Interaction with Magnetic X-Point in 3D Global Simulations

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Nonlinear gyrokinetic PIC simulations in stellarators with the code EUTERPE

RF plasma simulations using the TOMATOR 1D code: a case study for TCV helium ECRH plasmas

Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X

An Algorithm for Toroidal Field Harmonics Computation in Arbitrary Magnetic Configurations

Experimental verification of X-point potential well formation in unfavorable magnetic field direction