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Olivier Sauter

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Publications associées (471)

Snowflake divertor experiments on TCV

Basil Duval, Jean-Marc Moret, Olivier Sauter, Stefano Coda, Benoît Labit, János Márki, Andreas Pitzschke, Francesco Piras

An ELMy H-mode 'snowflake' (SF) divertor is established and studied for the first time in the TCV tokamak. The H-mode access and the edge localized mode (ELM) dynamics are compared with a conventional single-null diverted configuration. The SF configuratio ...

Institute of Physics2010

Global collisional gyrokinetic simulations of ITG microturbulence starting from a neoclassical equilibrium

Stephan Brunner, Olivier Sauter, Trach-Minh Tran, Laurent Villard, Alberto Bottino, Sébastien Jolliet, Thibaut Vernay, Ben McMillan

Linearized operators describing inter-species and like-species collisions have been discretized and implemented in the gyrokinetic Particle-In-Cell (PIC) code ORB5 [S. Jolliet, Comp. Phys. Comm. 177, 409 ( 2007)] based on the delta-f approach. Simulation r ...

Iop Publishing Ltd, Dirac House, Temple Back, Bristol Bs1 6Be, England2010

Real-time feedback control of millimeter-wave polarization for LHD

Timothy Goodman, Olivier Sauter, Federico Alberto Alfredo Felici

Electron cyclotron heating (ECH) is widely used in magnetic fusion devices, and the polarization of the injected millimeter-wave beams plays a crucial role in the propagation and absorption of the beam energy by the plasma. This polarization can be adjuste ...

AIP2009

On the Requirements to Control Neoclassical Tearing Modes in Burning Plasmas

Olivier Sauter, Hartmut Zohm, Costanza Zucca

Neoclassical tearing modes (NTMs) are magnetic islands which increase locally the radial transport and therefore degrade the plasma performance. They are self-sustained by the bootstrap current perturbed by the enhanced radial transport. The confinement de ...

2009

The effect of plasma triangularity on turbulent transport:modelling TCV experiments by linear and non linear gyrokinetic simulations

Stephan Brunner, Antoine Pochelon, Olivier Sauter, Laurent Villard, Stefano Coda, Yann Camenen, Jonathan Graves, Alessandro Marinoni, Xavier Lapillonne

The effect of plasma shape on confinement has been experimentally explored in the TCV tokamak revealing that the core electron heat transport is significantly reduced by a negative triangularity configuration, which could indicate a (partial) stabilization ...

2009

Bootstrap current calculations with the SPBSC and the VENUS delta f codes for the Large Helical Device

Wilfred Anthony Cooper, Olivier Sauter, Trach-Minh Tran

Total bootstrap current calculations with the updated VENUS+δf code that incorporates energy convolution and the momentum correction technique have been performed for the reference tokamak JT-60U cases and for the experimental Large Helical Device (LH ...

IOP Publishing Ltd2009

Current density evolution in electron internal transport barrier discharges in TCV

Timothy Goodman, Olivier Sauter, Stefano Coda, Emiliano Fable, Costanza Zucca

Simulations of the plasma current density evolution in electron internal transport barrier discharges on the Tokamak a Configuration Variable (TCV) have been performed, in order to determine the relationship between the safety-factor profile and the electr ...

2009

Modulation of electron transport during Swing ECCD discharges in TCV

Stefano Alberti, Timothy Goodman, Olivier Sauter, Costanza Zucca

Generation of a swing electron cyclotron current drive (swing ECCD), i.e. driving alternated, symmetric, positive or negative local ECCD, during a single discharge and at constant total input EC power, was performed at the Tokamak a Configuration Variable ...

IOP2009

Gyrokinetic calculations of steady-state particle transport in electron internal transport barriers

Olivier Sauter, Emiliano Fable

2008

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV

Stefano Alberti, Timothy Goodman, Yves Martin, Olivier Sauter, Laurie Porte, Costanza Zucca

2008

MHD as trigger of electron temperature oscillations in ECCD discharges in TCV

Timothy Goodman, Olivier Sauter, Emiliano Fable

2008

Spontaneous L-mode plasma rotation scaling in the TCV tokamak

Basil Duval, Richard Pitts, Antoine Pochelon, Olivier Sauter, Andrea Scarabosio, Alexander Karpushov, Alessandro Bortolon

2008

Electron thermal transport analysis in Tokamak a Configuration Variable

Stefano Alberti, Yves Martin, Olivier Sauter, Alexander Karpushov, Laurie Porte

American Institute of Physics (AIP)2008

Physics analysis of the ITER ECW system for optimized performance

Olivier Sauter, Hartmut Zohm, Costanza Zucca, Emanuele Poli

IOP Publishing Ltd2008

Overview of the ITER EC upper launcher

René Chavan, Olivier Sauter, Joseph Duron, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Costanza Zucca

IOP Publishing Ltd2008

Global plasma oscillations in electron internal transport barriers in TCV

Timothy Goodman, Olivier Sauter, Andrea Scarabosio, Jonathan Graves, Emiliano Fable, Costanza Zucca

2008

First measurements of oblique ECE with a real-time moveable line-of-sight on TCV

Timothy Goodman, Olivier Sauter, Christian Schlatter, Igor Klimanov

Electron cyclotron (EC) emission (ECE) radiometers viewing perpendicular to the magnetic field are common on nearly all tokamaks for measuring the electron temperature with good spatio-temporal resolution. Two such radiometers are installed on TCV, one loo ...

American Nuclear Society2008

Hybrid H-mode scenario with nitrogen seeding and type III ELMs in JET

Olivier Sauter

2008

The effect of MHD noise on the vertical observer in tokamaks

Yves Martin, Jean-Marc Moret, Olivier Sauter, Stefano Coda

2008

Snowflake Divertor Plasmas on TCV

Basil Duval, Jean-Marc Moret, Richard Pitts, Antoine Pochelon, Olivier Sauter, Ivo Furno, Stefano Coda, Costanza Zucca, Francesco Piras, Federico Alberto Alfredo Felici, Attila Bencze

Starting from a standard single null X-point configuration, a second order null divertor (snowflake (SF)) has been successfully created on the Tokamak à Configuration Variable (TCV) tokamak. The magnetic properties of this innovative configuration have bee ...

PPCF2008

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