Publications de Robert Bertizzolo

A birdcage resonant antenna for helicon wave generation in TORPEX

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne, Rémy Jacquier, Marcelo Baquero Ruiz, Robert Bertizzolo

A birdcage resonant helicon antenna is designed, mounted, and tested in the toroidal device TORPEX. The birdcage resonant antenna is an alternative to the usual Boswell or half-helical antenna designs commonly used for ∼ 10 cm diameter helicon sources in l ...

2024

Gas puff imaging on the TCV tokamak

Basil Duval, Christian Gabriel Theiler, Cristian Galperti, Jean-Daniel Landis, Yanis Andrebe, Olivier Claude Martin Février, Robert Bertizzolo, Curdin Tobias Wüthrich, Nicola Offeddu

We present the design and operation of a suite of Gas Puff Imaging (GPI) diagnostic systems installed on the Tokamak a Configuration Variable (TCV) for the study of turbulence in the plasma edge and Scrape-Off-Layer (SOL). These systems provide the unique ...

AIP Publishing2022

Nearing final design of the ITER EC H&CD Upper Launcher

Olivier Sauter, Timothy Goodman, René Chavan, Jean-Daniel Landis, Robert Bertizzolo, Matteo Vagnoni, Florian Ramseyer, Emanuele Poli

The ITER ECRH system consists of 24 gyrotrons with up to 24 MW installed millimeter wave heating power at 170 GHz, power supplies, control system, transmission lines, one Equatorial and the four Upper Launchers. With its high frequency and small beam focus ...

ELSEVIER SCIENCE SA2019

Improving spatial and spectral resolution of TCV Thomson scattering

Basil Duval, Patrick Blanchard, René Chavan, Joan Decker, Xavier Llobet, Yanis Andrebe, Matthieu Toussaint, Pierre Lavanchy, Philippe Marmillod, Robert Bertizzolo

The recently completed MST2 upgrade to the Thomson scattering (TS) system on TCV (Tokamak a Configuration Variable) at the Swiss Plasma Center aims to provide an enhanced spatial and spectral resolution while maintaining the high level of diagnostic flexib ...

Iop Publishing Ltd2017

Characterization of metallic seals to be used in the waveguide flange coupling of the ITER electron cyclotron upper launcher first confinement system

Timothy Goodman, René Chavan, Jean-Daniel Landis, Robert Bertizzolo

2017

Thermal analyses of the mm-waveguide cooling concepts for the ITER electron cyclotron upper launcher first confinement system

Timothy Goodman, René Chavan, Jean-Daniel Landis, Avelino Mas Sanchez, Robert Bertizzolo

2017

Mechanical analyses of the waveguide flange coupling for the first confinement system of the ITER electron cyclotron upper launcher

Timothy Goodman, René Chavan, Jean-Daniel Landis, Robert Bertizzolo

The four electron cyclotron (EC) upper port antennas (or "upper launchers" -UL) will be used to drive current locally inside magnetic islands located at the q= 2 (or smaller) rational surfaces in order to stabilize neoclassical tearing modes (NTMs), as wel ...

Elsevier Science Sa2016

Overview of the ITER EC H&CD system and its capabilities

Olivier Sauter, Minh Quang Tran, Timothy Goodman, Stefano Alberti, Jean-Philippe Hogge, René Chavan, Laurie Porte, Jean-Daniel Landis, Francisco Sanchez, Ioannis Pagonakis

The Electron Cyclotron (EC) system for the ITER tokamak is designed to inject >= 20 MW RF power into the plasma for Heating and Current Drive (H&CD) applications. The EC system consists of up to 26 gyrotrons (between 1 and 2 MW each), the associated power ...

Elsevier2011

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

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

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

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

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

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