Publications by Robert Bertizzolo

A birdcage resonant antenna for helicon wave generation in TORPEX

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

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

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

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

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

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

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

2017

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

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

2017

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

René Chavan, Timothy Goodman, 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

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

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

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

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 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

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

Progress on the design and manufacturing of the mirrors for the ITER Electron Cyclotron Heating and Current Drive upper launcher

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

Four of the 16 ITER upper port plugs will be devoted to electron cyclotron resonance heating (ECRH) in order to control the magneto-hydrodynamic (MHD) instabilities. ...

IEEE2009

Robert Bertizzolo

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A birdcage resonant antenna for helicon wave generation in TORPEX

Gas puff imaging on the TCV tokamak

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

Improving spatial and spectral resolution of TCV Thomson scattering

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

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

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

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

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

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

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

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

Progress on the design and manufacturing of the mirrors for the ITER Electron Cyclotron Heating and Current Drive upper launcher

Overview of the ITER EC upper launcher

Critical design issues of the ITER ECH front steering upper launcher

A Vertical ECE Diagnostic for TCV

The Enhanced Performance Launcher Design For The ITER Upper Port ECH Antenna

Design Status of the ITER Upper Port Launcher

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

Design of the critical components in the ITER ECH upper launcher steering mechanism