Publications associées à Fundamental properties of ideal and resistive infernal modes in tokamaks

Publications associées (12)

Magnetic fields in the weakly collisional plasma of galaxy clusters: from amplification mechanisms to observables

Magnetic fields are ubiquitous in the Universe and observed in various astrophysical systems, with different amplitudes. In galaxy clusters, they are typically on the order of a few

\mu\mathrm{G}

. Comparing this value with the amplitude of magnetic seed ...

EPFL2024

Role of radiation re-absorption in the thermal helium beam diagnostic

Christian Gabriel Theiler, Yanis Andrebe, Curdin Tobias Wüthrich, Yuxuan Wang

The Thermal Helium Beam (THB) is a diagnostic for simultaneously measuring the electron temperature and density profiles of the plasma edge and scrape off layer (SOL). It exploits the line ratio technique of selected He line intensities, emitted by He gas ...

2024

Bayesian optimization of massive material injection for disruption mitigation in tokamaks

Carl Mathias Paul Hoppe

A Bayesian optimization framework is used to investigate scenarios for disruptions mitigated with combined deuterium and neon injection in ITER. The optimization cost function takes into account limits on the maximum runaway current, the transported fracti ...

Cambridge University Press2023

Detachment in conventional and advanced double-null plasmas in TCV

Stefano Coda, Basil Duval, Benoît Labit, Holger Reimerdes, Christian Gabriel Theiler

Divertor detachment is investigated on the Tokamak a Configuration Variable (TCV) for conventional and alternative double-null (DN) magnetic geometries in L-mode, Ohmic density ramps and then compared to precisely matched single-null (SN) geometries. The p ...

IOP Publishing Ltd2021

Studying the effect of non-adiabatic passing electron dynamics on microturbulence self-interaction in fusion plasmas using gyrokinetic simulations

Ajay Chandrarajan Jayalekshmi

Microturbulence driven by plasma instabilities is in most cases the dominant cause of heat and particle loss from the core of magnetic confinement fusion devices and therefore presents a major challenge in achieving burning plasma conditions. The role of p ...

EPFL2020

Chiral fermion asymmetry in high-energy plasma simulations

Salim Bennouna

The chiral magnetic effect (CME) is a quantum relativistic effect that describes the appearance of an additional electric current along a magnetic field. It is caused by an asymmetry between the number densities of left- and right-handed fermions, which ca ...

2020

Advances in the physics studies for the JT-60SA tokamak exploitation and research plan

Stefano Coda, Javier García Hernández, Marco Wischmeier, Matteo Vallar, Aylwin Iantchenko, Samuele Mazzi

JT-60SA, the largest tokamak that will operate before ITER, has been designed and built jointly by Japan and Europe, and is due to start operation in 2020. Its main missions are to support ITER exploitation and to contribute to the demonstration fusion rea ...

2020

A Variable Structure Control Scheme Proposal for the Tokamak a Configuration Variable

Olivier Sauter, Ambrogio Fasoli, Stefano Coda, Basil Duval, Henri Weisen, Timothy Goodman, Yves Martin, Yann Camenen, Jan Horacek, Duccio Testa, Marco Wischmeier, Jean-Marc Moret, Ivo Furno, Nicola Vianello, Minh Quang Tran, Patrick Blanchard, Alessandro Pau, Federico Alberto Alfredo Felici, Benoît Labit, Paolo Ricci, Jean-Philippe Hogge, Jonathan Graves, Holger Reimerdes, Laurie Porte, Christian Gabriel Theiler, Alexander Karpushov, Cedric Kar-Wai Tsui, Federico Nespoli, Kevin Henricus Annemarie Verhaegh, Antoine Pierre Emmanuel Alexis Merle, Umar Sheikh, Wouter Vijvers, Xavier Llobet, Christian Schlatter, Yanis Andrebe, Cristian Galperti, Joan Decker, Zhouji Huang, Fabio Riva, Mengdi Kong, Rémy Jacquier, Anna Teplukhina, Roberto Maurizio, Oulfa Chellaï, Francesco Carpanese, Falk Hans Braunmüller, Claudio Marini, Himank Anand, Dahye Choi, Hoang Bao Le, Josef Kamleitner, Joyeeta Sinha, Anton Malygin, Mélanie Preynas, Joshua Nathaniel Hawke

Fusion power is the most significant prospects in the long-term future of energy in the sense that it composes a potentially clean, cheap, and unlimited power source that would substitute the widespread traditional nonrenewable energies, reducing the geogr ...

2019

SOLPS simulation of TCV divertor leg length studies

Mirko Wensing

This contribution uses TCV experiments with varying divertor configurations to investigate the particle- and heat cross-field transport within the scrape-off layer, which greatly determines the peak heat flux on the plasma-facing components. The proximity ...

2018

Electron Bernstein Wave Heating and Emission in the TCV Tokamak

Stefano Coda, Timothy Goodman, Antoine Pochelon, Yann Camenen, Laurie Porte, Loïc Curchod

Electron cyclotron resonance heating (ECRH) of high-density tokamak plasmas is limited because of reflections of the waves at so-called wave cutoffs. Electron Bernstein wave (EBW) heating (EBWH) via a double mode conversion process from ordinary (O)-mode, ...

American Nuclear Society2007

Temperature oscillating regimes in Tore Supra diagnosed by MHD activity

This paper describes what we can learn on the regimes of spontaneous electron temperature oscillations discovered in Tore Supra from the analysis of MHD activity. Since the first observations of this oscillating behaviour of plasma equilibrium, and its int ...

IOP Publishing Ltd2006

Integrated exhaust scenarios with actively controlled ELMs

Jonathan Bryan Lister, Yves Martin, René Uwe Schneider

An integrated radiative high performance scenario has been established at ASDEX Upgrade based on simultaneous feedback control of the average divertor neutral particle and power flux in combination with a high, pellet induced frequency of edge localized mo ...

IOP Publishing Ltd2005