Publications associées à Electromagnetic instability and turbulence in plasmas with positive and negative triangularity

Publications associées (10)

First measurements of velocity-space resolved intra-ELM fast-ion losses on the TCV tokamak

Ambrogio Fasoli, Basil Duval, Benoît Labit, Alexander Karpushov, Mario Ludovico Podesta, Jesús Poley Sanjuán, Umesh Kumar

Edge Localised Modes (ELMs) induced fast-ion losses have been characterised in the energy, E, and pitch, λ = v ∥ / v , space using a unique Fast Ion Loss Detector (FILD) on the tokamak à configuration variable. The FILD is equipped with a 128 Avalanche Pho ...

IOP Publishing Ltd2025

Effects of reflected electrons on the efficiency of high-power gyrotrons

Jean-Philippe Hogge, Jérémy Genoud

Efficiency is a key factor for high-power gyrotrons, particularly in future fusion power plants, where a large number of gyrotron units will be required for plasma heating. A single-stage depressed collector enhances efficiency from approximately 35% to 50 ...

2025

DC and quench performance assessment from the EUROfusion HTS Quench Experiment campaign and projection to magnet operation

Pierluigi Bruzzone, Kamil Sedlák, Davide Uglietti, Nikolay Bykovskiy, Hugues Marie Alain Bajas, Jack Richard Greenwood

Seven different high current conductors for fusion applications, made of High Temperature Superconducting stacked tapes, have been successfully tested in the Quench Experiment campaign supported by EUROfusion and carried out in SULTAN. The aim of this exte ...

2025

Plasmoid drift and first wall heat deposition during ITER H-mode dual-SPIs in JOREK simulations

Mengdi Kong

The heat flux mitigation during the thermal quench (TQ) by the shattered pellet injection (SPI) is one of the major elements of disruption mitigation strategy for ITER. It's efficiency greatly depends on the SPI and the target plasma parameters, and is ult ...

IOP Publishing Ltd2024

Comprehensive Screening of Plasma-Facing Materials for Nuclear Fusion

Nicola Marzari, Paolo Ricci, Andrea Fedrigucci

Plasma-facing materials (PFMs) represent one of the most significant challenges for the design of future nuclear fusion reactors. Inside the reactor, the divertor will experience the harshest material environment: intense bombardment of neutrons and plasma ...

2024

Numerical tools for burning plasmas

Laurent Villard, Jonathan Graves, Alberto Bottino, Ben McMillan, Emmanuel Lanti, Baruch Rofman

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 Ltd2023

Gyrokinetic moment-based simulations of the Dimits shift

Paolo Ricci, Baptiste Jimmy Frei, Antoine Cyril David Hoffmann

We present a convergence study of the gyromoment (GM) approach, which is based on projecting the gyrokinetic distribution function onto a Hermite–Laguerre polynomial basis, focused on the cyclone base case (CBC) (Lin et al., Phys. Rev. Lett., vol. 83, no. ...

Cambridge University Press2023

Impact of collisionality on turbulence in the edge of tokamak plasma using 3D global simulations

Davide Galassi

Collisionality is one of the key parameters in determining turbulent transport in the plasma edge, regulating phenomena such as 'shoulder formation', separation of scale lengths in the scrape-off layer (SOL), turbulence damping and zonal flow dynamics. Und ...

IOP Publishing Ltd2021

Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER

Olivier Sauter, Jonathan Graves, Stefano Coda, Timothy Goodman, Costanza Zucca, Martin Jucker

13 MW of electron cyclotron current drive (ECCD) power deposited inside the q = 1 surface is likely to reduce the sawtooth period in ITER baseline scenario below the level empirically predicted to trigger neoclassical tearing modes (NTMs). However, since t ...

IOP Publishing Ltd2013

Collisionality and shear dependences of density peaking in JET and extrapolation to ITER

Henri Weisen, Ivo Furno, Alexey Zabolotskiy

Results from an extensive database analysis of JET density profiles in stationary conditions show that the density peaking factor n(e0)/< n(e)> in JET H modes increases from near 1.2 at high collisionality to around 1.5 as the plasma collisionality decreas ...

IOP Publishing Ltd2005