Publications related to First results on the plasma fluctuations of the TORPEX device in the new magnetic field configurations

Investigating Scrape-Off Layer transport in alternative divertor geometries on the TCV tokamak

Thermonuclear fusion is a potentially clean and limitless energy source that can substantially change the current global electricity generation mix, which is highly dependent on limited fossil fuels. This thesis contributes to the development of fusion en ...

EPFL2020

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

Assessment of alternative divertor configurations as an exhaust solution for DEMO

Holger Reimerdes, Roberto Maurizio, Seungkyu Ha, Hartmut Zohm

Plasma exhaust has been identified as a major challenge towards the realisation of magnetic confinement fusion. To mitigate the risk that the single null divertor (SND) with a high radiation fraction in the scrape-of-layer (SOL) adopted for ITER will not e ...

2020

TCV heating and divertor upgrades

Ambrogio Fasoli, Basil Duval, Jean-Marc Moret, Stefano Alberti, Holger Reimerdes, Christian Gabriel Theiler, Alexander Karpushov, Matthieu Toussaint, Marcelo Baquero Ruiz, Dario Vaccaro

The operational range and the reactor relevance of the TCV experiments are being enhanced by two sets of major upgrades. The first includes the installation of neutral beam injection (NBI) and new electron cyclotron (EC) auxiliary heating sources, to reach ...

IOP PUBLISHING LTD2020

Towards integrated control of tokamak plasmas: physics-based control of neoclassical tearing modes in the TCV tokamak

Mengdi Kong

Neoclassical tearing modes (NTMs), magnetic islands located at rational

q

surfaces, are an important class of resistive magnetohydrodynamics (MHD) instabilities in tokamak plasmas, with

q

the safety factor. NTMs are one of the main constraints of the a ...

EPFL2020

Scrape-off layer transport and filament characteristics in high-density tokamak regimes

Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Alexander Karpushov, Nicola Vianello, Cedric Kar-Wai Tsui, Kevin Henricus Annemarie Verhaegh, Roberto Maurizio, Hugo De Oliveira

A detailed cross-device investigation on the role of filamentary dynamics in high-density regimes has been performed within the EUROfusion framework, comparing the ASDEX Upgrade (AUG) and TCV tokamaks. Both devices run density ramp experiments at different ...

2020

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

Use of virtual actuators in ASDEX Upgrade control

Federico Alberto Alfredo Felici, Bernhard Sieglin

Actuator management is an essential part of a modern tokamak plasma control system. It has to deal with a large number of control task simultaneously, needs to be able to operate close to stability limits and to avoid disruptions. In the ASDEX Upgrade toka ...

ELSEVIER SCIENCE SA2020

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

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

First results on the plasma fluctuations of the TORPEX device in the new magnetic field configurations

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Investigating Scrape-Off Layer transport in alternative divertor geometries on the TCV tokamak

Turbulence and flows in the plasma boundary of snowflake magnetic configurations

Assessment of alternative divertor configurations as an exhaust solution for DEMO

TCV heating and divertor upgrades

Towards integrated control of tokamak plasmas: physics-based control of neoclassical tearing modes in the TCV tokamak

Scrape-off layer transport and filament characteristics in high-density tokamak regimes

An Algorithm for Toroidal Field Harmonics Computation in Arbitrary Magnetic Configurations

Use of virtual actuators in ASDEX Upgrade control

Nonlinear gyrokinetic PIC simulations in stellarators with the code EUTERPE

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

An Algorithm for Toroidal Field Harmonics Computation in Arbitrary Magnetic Configurations

Use of virtual actuators in ASDEX Upgrade control

Nonlinear gyrokinetic PIC simulations in stellarators with the code EUTERPE

Assessment of alternative divertor configurations as an exhaust solution for DEMO

Investigating Scrape-Off Layer transport in alternative divertor geometries on the TCV tokamak

Scrape-off layer transport and filament characteristics in high-density tokamak regimes

TCV heating and divertor upgrades

Turbulence and flows in the plasma boundary of snowflake magnetic configurations

Towards integrated control of tokamak plasmas: physics-based control of neoclassical tearing modes in the TCV tokamak

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