Publications de Frédéric Dolizy

Publications associées (19)

Progress On The Iter Upper Launcher Millimeter Wave Design And Testing

René Chavan, Frédéric Dolizy, Federico Alberto Alfredo Felici

The main purpose of the ITER ECH upper launcher is to control magnetohydrodynamic activity, in particular neoclassical tearing modes, in the plasma. The mm-wave optical system is optimized to insure that the eight RF beams are all focused to a small beam w ...

2009

Design status of the ITER ECRH upper launcher mm-wave system

René Chavan, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Federico Alberto Alfredo Felici

The purpose of the ITER electron cyclotron resonance heating (ECRH) upper launcher (UL), or antennae will be to provide localised current drive by accurately directing mm-wave beams up to 2MW, out of the four allocated upper port plugs, at chosen rational ...

Elsevier2009

Progress on the ITER H&D EC Upper Launcher Steering-Mirror Control System

René Chavan, Timothy Goodman, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Federico Alberto Alfredo Felici

The ITER Heating and Current Drive Upper Launcher (H&CD EC UL) uses a pneumomechanical steering-mirror assembly (SMA) to steer the RF beams for their deposition in the appropriate location in the plasma to control magnetohydrodynamic activity (neoclassical ...

Institute of Electrical and Electronics Engineers2010

Beam duct for the 1 MW neutral beam injector on TCV

Basil Duval, Yves Martin, Stefano Coda, Alexander Karpushov, Frédéric Dolizy, Matthieu Toussaint, Roberto Maurizio

The 1MW power of the neutral beam injector (NBI) enters the plasma of the Tokamak a Configuration Variable (TCV) through a duct. The original beam propagation model predicted a maximal heat flux on the internal faces of the duct below 350 kW/m(2), leading ...

2020

Progress on the ITER ECRH upper launcher steering mirror identification and control

René Chavan, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Federico Alberto Alfredo Felici

The main objective of the ITER ECRH upper launcher (UL) is to control magnetohydrodynamic activity, in particular neoclassical tearing modes (NTMs), by driving several MW of EC Current near the q = 1, 3/2, 2 flux surfaces, where NTMs are expected to occur. ...

Elsevier2009

Present status of heating neutral beam injection system at TCV

Patrick Blanchard, Basil Duval, Damien Fasel, Ambrogio Fasoli, Yves Martin, Olivier Sauter, Stefano Coda, Ugo Siravo, Alexander Karpushov, Yanis Andrebe, Jérémie Dubray, Frédéric Dolizy, Rémy Jacquier, Matthieu Toussaint, Dmytry Mykytchuk, David Velasco De La Fuente, Marc Noël, Aleksandr Listopad

The paper describes the operation and upgrade of the Heating Neutral Beam Injection (HNBI) system as well as the related infrastructure at the Tokamak Configuration Variable (TCV) during the last years. In 2023, the installation of new TCV neutron shieldin ...

2025

Upgrade of the neutral beam heating system on the TCV tokamak - second high energy neutral beam

Basil Duval, Damien Fasel, Ambrogio Fasoli, Pierre Lavanchy, Blaise Marlétaz, Yves Martin, Holger Reimerdes, Stefano Coda, Ugo Siravo, Alexander Karpushov, Jérémie Dubray, Frédéric Dolizy, Rémy Jacquier, Matthieu Toussaint, Umar Sheikh, Marcelo Baquero Ruiz, Filippo Bagnato, Lorenzo Martinelli, Matteo Vallar, Claudia Colandrea, Dmytry Mykytchuk, Jesús Poley Sanjuán

The TCV tokamak continues to leverage its unique shaping capabilities, flexible heating systems and modern control system to provide a stepladder approach for extrapolations of experimental results from different ma-chines to ITER and DEMO. TCV's configura ...

ELSEVIER SCIENCE SA2022

Progress on the ITER Electron Cyclotron Heating and Current Drive Upper Launcher Steering Mirror Control System

René Chavan, Timothy Goodman, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Federico Alberto Alfredo Felici

The ITER ECRH upper launcher (UL) uses a steering mechanism assembly (SMA) to steer the beams in the appropriate location for controlling magnetohydrodynamic (MILD) activity in the plasma (NTMs and sawtooth oscillations). ...

IEEE2009

First Measurement of the Damping Rate of High-n Toroidal Alfvén Eigenmodes in JET Tokamak Plasmas

René Chavan, Ambrogio Fasoli, Pierre Lavanchy, Laurent Villard, Duccio Testa, Robert Bertizzolo, Frédéric Dolizy

2007

LTCC magnetic sensors at EPFL and TCV: Lessons learnt for ITER

Thomas Maeder, Pierre Lavanchy, Jonathan Bryan Lister, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Ugo Siravo, Caroline Marguerite Jacq, Christian Moura, Duccio Testa, Frédéric Dolizy, Severino Antonioni, Matthieu Toussaint, Steve Couturier, Adrien Aymeric Thibault Corne, Aylwin Iantchenko, Lorenzo Stipani

Innovative 3D high-frequency magnetic sensors have been designed and manufactured in-house for installation on the Tokamak a Configuration Variable (TCV), and are currently routinely operational. These sensors combine the Low Temperature Co-fired Ceramic ( ...

2019

First Measurement of the Damping Rate of High-n Toroidal Alfvén Eigenmodes in JET Tokamak Plasmas

René Chavan, Ambrogio Fasoli, Pierre Lavanchy, Laurent Villard, Duccio Testa, Robert Bertizzolo, Frédéric Dolizy

2007

mm-wave Optical System of the ITER Upper Port EC Launcher

René Chavan, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy

2007

Critical design issues of the ITER ECH front steering upper launcher

René Chavan, Joseph Duron, Jean-Daniel Landis, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy

2008

Non-evaporable getter pump operations in the TCV tokamak

Basil Duval, Ambrogio Fasoli, Yves Martin, Holger Reimerdes, Stefano Coda, Frédéric Dolizy, Marcelo Baquero Ruiz

A non-evaporable getter pump using the ZAO alloy was installed on TCV and operated during the 2019 experimental campaign. The pump performance, determined from in-situ pumping speed measurements, indicates that current getter pump technologies are well sui ...

2021

Frédéric Dolizy

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Progress On The Iter Upper Launcher Millimeter Wave Design And Testing

Design status of the ITER ECRH upper launcher mm-wave system

Progress on the ITER H&D EC Upper Launcher Steering-Mirror Control System

Beam duct for the 1 MW neutral beam injector on TCV

Progress on the ITER ECRH upper launcher steering mirror identification and control

Present status of heating neutral beam injection system at TCV

Upgrade of the neutral beam heating system on the TCV tokamak - second high energy neutral beam

Progress on the ITER Electron Cyclotron Heating and Current Drive Upper Launcher Steering Mirror Control System

First Measurement of the Damping Rate of High-n Toroidal Alfvén Eigenmodes in JET Tokamak Plasmas

LTCC magnetic sensors at EPFL and TCV: Lessons learnt for ITER

First Measurement of the Damping Rate of High-n Toroidal Alfvén Eigenmodes in JET Tokamak Plasmas

mm-wave Optical System of the ITER Upper Port EC Launcher

Critical design issues of the ITER ECH front steering upper launcher

Non-evaporable getter pump operations in the TCV tokamak

Design Status of the ITER Upper Port Launcher

Design Status of the ITER Upper Port Launcher

The ITER ECH FS Launcher design for an optimized Physics Performance

The ITER ECH FS Upper Launcher mm-wave design

Overview of the ITER EC upper launcher