Publications associées à Improved confinement in high-density H-modes via modification of the plasma boundary with lower hybrid waves

DIII-D research towards establishing the scientific basis for future fusion reactors

Olivier Sauter, Wilfred Anthony Cooper, Terunobu Akiyama, Mario Ludovico Podesta, Jeffrey Huang, Richard Pitts, Sun Hee Kim, Federico David Halpern, Francesca Maria Poli, Alessandro Bortolon, Alessandro Marinoni, Gabriele Merlo, Fang Liu, Stefan Müller, Wei Wu, Kyungjin Kim, Jérôme Guterl, Xi Chen, Gang Yu, Huan Du, Bingying Zhao, Ji Hyun Kim, Zheng Wang, Yi Wang, Hui Wang, Yu Fu

DIII-D research is addressing critical challenges in preparation for ITER and the next generation of fusion devices through focusing on plasma physics fundamentals that underpin key fusion goals, understanding the interaction of disparate core and boundary ...

2019

A moment-based model for plasma dynamics at arbitrary collisionality

Rogério Manuel Cabete De Jesus Jorge

Despite significant development over the last decades, a model able to describe the periphery region of magnetic confinement fusion devices, extending from the edge to the far scrape-off layer, is still missing. This is because this region is characterized ...

EPFL2019

Isotope identity experiments in JET-ILW with H and D L-mode plasmas

Henri Weisen

NBI-heated L-mode plasmas have been obtained in JET with the Be/W ITER-like wall (JET-ILW) in H and D, with matched profiles of the dimensionless plasma parameters, rho*, nu*, beta and q in the plasma core confinement region and same T-i/T-e and Z(eff). Th ...

IOP PUBLISHING LTD2019

An efficient treatment of the full Coulomb collision operator with applications

Paolo Ricci, Rogério Manuel Cabete De Jesus Jorge, Baptiste Jimmy Frei

A formulation of full Coulomb (or Landau) collision operator is provided that allows for an efficient numerical implementation, both in unmagnetized and magnetized plasmas. The method is based on projecting the Boltzmann equations and the collision operato ...

2019

Characterizing time intermittency in non-diffusive fast ion transport through plasma turbulence

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Marcelo Baquero Ruiz, Oulfa Chellaï, Fabian Manke

Turbulent fast ion transport has been investigated in astrophisycal, laboratory and fusion plasmas. When gyro- and drift-averaging across plasma structures manifest as non-markovian and non-local effects, this results in generally non-diffusive transport. ...

2019

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Anna Teplukhina

Predictive modelling of plasma profiles is an essential part of ongoing research in tokamak plasmas, required for a successful realization of future fusion reactors. This thesis focuses on upgrading the RAPTOR code to extend the area of its applicability f ...

EPFL2018

Pedestal Structure and Energy Confinement Studies on TCV

Olivier Sauter, Basil Duval, Patrick Blanchard, Benoît Labit, Christian Gabriel Theiler, Antoine Pierre Emmanuel Alexis Merle, Umar Sheikh, Cedric Kar-Wai Tsui

High external gas injection rates are foreseen for future devices to reduce divertor heat loads and this can influence pedestal stability. Fusion yield has been estimated to vary as strongly as

{T}_{e,{\rm{ped}}}^{2}

so an understanding of the underlying ...

2018

On the universality of power laws for tokamak plasma predictions

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Jonathan Graves, Yves Martin, Duccio Testa, Patrick Blanchard, Alessandro Pau, Cristian Sommariva, Henri Weisen, Richard Pitts, Yann Camenen, Jan Horacek, Javier García Hernández, Marco Wischmeier, Nicola Vianello, Mikhail Maslov, Federico Nespoli, Yao Zhou, David Pfefferlé, Davide Galassi, Antonio José Pereira de Figueiredo, Jonathan Marc Philippe Faustin, Liang Yao, Dalziel Joseph Wilson, Hamish William Patten, Samuel Lanthaler, Bernhard Sieglin, Otto Asunta

Significant deviations from well established power laws for the thermal energy confinement time, obtained from extensive databases analysis as the IPB98(y, 2), have been recently reported in dedicated power scans. In order to illuminate the adequacy, valid ...

2018

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

Jonathan Marc Philippe Faustin

Tokamaks and stellarators are the most promising reactor concepts using the magnetic confinement to contain the plasma fuel. Reactors capable of sustaining deuterium-tritium (D-T) fusion reactions requires the confinement of a very high temperature plasma ...

EPFL2017

Experimental study of plasma turbulence in the TCV tokamak

Zhouji Huang

This thesis presents an experimental investigation of electron density fluctuations in the TCV tokamak, primarily with the tangential phase contrast imaging (TPCI) diagnostic. The focus is to study the small-scale broadband turbulence in the plasma, which ...

EPFL2017

Improved confinement in high-density H-modes via modification of the plasma boundary with lower hybrid waves

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DIII-D research towards establishing the scientific basis for future fusion reactors

A moment-based model for plasma dynamics at arbitrary collisionality

Isotope identity experiments in JET-ILW with H and D L-mode plasmas

An efficient treatment of the full Coulomb collision operator with applications

Characterizing time intermittency in non-diffusive fast ion transport through plasma turbulence

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Pedestal Structure and Energy Confinement Studies on TCV

On the universality of power laws for tokamak plasma predictions

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

Experimental study of plasma turbulence in the TCV tokamak

DIII-D research towards establishing the scientific basis for future fusion reactors

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

On the universality of power laws for tokamak plasma predictions

Experimental study of plasma turbulence in the TCV tokamak

A moment-based model for plasma dynamics at arbitrary collisionality

An efficient treatment of the full Coulomb collision operator with applications

Pedestal Structure and Energy Confinement Studies on TCV

Characterizing time intermittency in non-diffusive fast ion transport through plasma turbulence

Isotope identity experiments in JET-ILW with H and D L-mode plasmas