Publications related to Experimental Validation of a Filament Transport Model in Turbulent Magnetized Plasmas

Convective cells and blob control in a simple magnetized torus

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Joaquim Loizu Cisquella

In view of controlling wall and divertor heat loads in magnetic fusion devices, we investigate the possibility of creating convective cells by means of biased electrodes for turbulence and blob control in the simple magnetized toroidal plasmas of TORPEX. A ...

2011

Understanding and taming plasma blobs in toroidal magnetized plasmas

Ivo Furno

Intermittent blobs, which propagate across a confining magnetic fields, are universally observed in natural and laboratory plasmas. In fusion plasmas, cross-field transport of particles and energy are associated, at least in part, with the propagation of b ...

2011

Fast Imaging of Turbulent Plasmas in the TORPEX Device

Davoud Iraji

This thesis addresses the issue of turbulence generated modes and intermittent structures using a fast visible imaging system on TORPEX. The plasma radiation mechanisms and experimental setup of the imaging system are discussed together with an optimized t ...

EPFL2011

The global version of the gyrokinetic turbulence code GENE

Stephan Brunner, Xavier Lapillonne

The understanding and prediction of transport due to plasma microturbulence is a key open problem in modern plasma physics, and a grand challenge for fusion energy research. Ab initio simulations of such small-scale, low-frequency turbulence are to be base ...

2011

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Nicola Vianello

In simple magnetized toroidal plasmas, field-aligned blobs originate from ideal interchange waves and propagate radially outward under the effect of

\grad B

and curvature induced

E \times B

drifts. We report on the first experimental two-dimensional me ...

2011

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Olivier Sauter, Basil Duval, Stefano Coda, Timothy Goodman, Laurent Villard, Jean-Marc Moret, Stephan Brunner, Benoît Labit, Laurie Porte, Alexander Karpushov, Antoine Pochelon, Yann Camenen, Roland Behn, Alberto Bottino, Sébastien Jolliet, Emiliano Fable, Philippe Marmillod, Ben McMillan, Alessandro Marinoni, Lucia Isabel Federspiel, Andreas Pitzschke, Mikael Rancic

Turbulence and Transport Reduction with Negative Triangularity : Correlation ECE Measurements in TCV Due to turbulence, core energy transport in fusion devices such as tokamaks generally exceeds collisional transport by at least an order of magnitude. It i ...

2010

Local and Global Eulerian Gyrokinetic Simulations of Microturbulence in Realistic Geometry with Applications to the TCV Tokamak

Xavier Lapillonne

In magnetically confined fusion devices, the energy and particle transport is significantly larger than expected from purely collisional processes. This degraded confinement mostly results from small-scale turbulence and prevents from reaching self-sustain ...

EPFL2010

Gyrokinetic simulations of turbulent transport

Laurent Villard

This overview is an assessment of the gyrokinetic framework and simulations to compute turbulent transport in fusion plasmas. It covers an introduction to the gyrokinetic theory, the principal numerical techniques which are being used to solve the gyrokine ...

IOP Publishing and IAEA2010

Development of a Global Version of the Gyrokinetic Microturbulence Code GENE

Laurent Villard, Stephan Brunner, Ben McMillan, Xavier Lapillonne

In order to address non-local effects in turbulent transport of magnetic-fusion devices, the gyrokinetic code GENE has been extended from a flux tube to a more global geometry. This global version of GENE includes radial variations of temperature and densi ...

2010

Plasma fluctuation studies in the TCV tokamak

Alessandro Marinoni

One of the most important issues for magnetic-confinement fusion research is the so-called anomalous transport across magnetic field lines, i.e. transport that is in excess of that caused by collisional processes. The need to reduce anomalous transport in ...

EPFL2009

Experimental Validation of a Filament Transport Model in Turbulent Magnetized Plasmas

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Convective cells and blob control in a simple magnetized torus

Understanding and taming plasma blobs in toroidal magnetized plasmas

Fast Imaging of Turbulent Plasmas in the TORPEX Device

The global version of the gyrokinetic turbulence code GENE

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Local and Global Eulerian Gyrokinetic Simulations of Microturbulence in Realistic Geometry with Applications to the TCV Tokamak

Gyrokinetic simulations of turbulent transport

Development of a Global Version of the Gyrokinetic Microturbulence Code GENE

Plasma fluctuation studies in the TCV tokamak

Local and Global Eulerian Gyrokinetic Simulations of Microturbulence in Realistic Geometry with Applications to the TCV Tokamak

Convective cells and blob control in a simple magnetized torus

Fast Imaging of Turbulent Plasmas in the TORPEX Device

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Understanding and taming plasma blobs in toroidal magnetized plasmas

The global version of the gyrokinetic turbulence code GENE

Plasma fluctuation studies in the TCV tokamak

Gyrokinetic simulations of turbulent transport

Development of a Global Version of the Gyrokinetic Microturbulence Code GENE