Publications by Matthieu Toussaint

Related publications (30)

Prototyping Conventionally Wound High-Frequency Magnetic Sensors for ITER

René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Duccio Testa, Francisco Sanchez, Matthieu Toussaint

The high-frequency (HF) magnetic sensors for ITER are currently based on a conventional, Mirnov-type, pick-up coil, with an effective area in the range 0.03

American Nuclear Society2012

A phase-contrast-imaging core fluctuation diagnostic and first-principles turbulence modeling for JT-60SA

Stephan Brunner, Stefano Coda, Matthieu Toussaint, Aylwin Iantchenko

A core fluctuation diagnostic based on the phase-contrast imaging (PCI) technique has been designed for the JT-60SA tokamak, with the assistance of a synthetic diagnostic coupled to a gyrokinetic code. Using a tangentially viewing geometry, this system wou ...

IOP Publishing Ltd2021

Prototyping a High-Frequency Inductive Magnetic Sensor Using the Nonconventional, Low-Temperature Co-Fired Ceramic Technology for Use in ITER

Thomas Maeder, René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Gilbert Tonetti, Duccio Testa, Matthieu Toussaint

The ITER high-frequency (HF) magnetic sensor is currently intended to be a conventional, Mirnov-type, pickup coil, designed to provide measurements of magnetic instabilities with magnitude as low as |dB|~10e-4G at the position of the sensors and up to freq ...

2011

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

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

TCV heating and divertor upgrades

Stefano Alberti, Basil Duval, Ambrogio Fasoli, Jean-Marc Moret, Holger Reimerdes, Alexander Karpushov, Christian Gabriel Theiler, Matthieu Toussaint, Marcelo Baquero Ruiz, Dario Vaccaro

The operational range and the reactor relevance of the TCV experiments are being enhanced by two sets of major upgrades. The first includes the installation of neutral beam injection (NBI) and new electron cyclotron (EC) auxiliary heating sources, to reach ...

IOP Publishing Ltd2020

Design and implementation of quasi-optical components for the upgrade of the TCV EC-system

Stefano Alberti, Timothy Goodman, Jean-Philippe Hogge, Laurie Porte, Matthieu Toussaint, Florian Ramseyer

The EC-system of the TCV tokamak is progressively being upgraded with the addition of two MW-class dual-frequency gyrotrons (84 and 126 GHz/2s/1MW). In order to connect the two gyrotrons to the existing low field side and top launchers, new waveguide routi ...

ELSEVIER SCIENCE SA2019

Experimental characterization of the TCV dual-frequency gyrotron and validation of numerical codes including the effect of After Cavity Interaction

Stefano Alberti, Damien Fasel, Timothy Goodman, Jean-Philippe Hogge, Ugo Siravo, Jérémie Dubray, Matthieu Toussaint, Jérémy Genoud, Falk Hans Braunmüller, François Jean Gaston Legrand

A dual-frequency gyrotron has been developed within the context of the recent Tokamak à Configuration Variable (TCV) upgrade. The gyrotron is designed to generate a 1 MW, 2 seconds RF wave at 84 or 126 GHz. Before integrating the gyrotrons in the TCV tokam ...

2024

3D, LTCC-type, high-frequency magnetic sensors for the TCV Tokamak

Thomas Maeder, Caroline Marguerite Jacq, Gaël André Léon Farine, Duccio Testa, Matthieu Toussaint, Adrien Aymeric Thibault Corne

High-frequency, 3D magnetic sensors have been designed and manufactured in-house for installation on the Tokamak a Configuration Variable (TCV). To optimize the in-vessel volume occupation, the sensors are based on combining the Low Temperature Co-fired Ce ...

Elsevier Science Sa2015

Prototyping and testing of the Continuous External Rogowski ITER magnetic sensor

Jonathan Bryan Lister, Philippe Marmillod, Duccio Testa, Matthieu Toussaint

The measurement of the plasma current in ITER plays an outstanding role as it is part of the machine protection and is a safety-relevant measurement: it will be used in relation with regulatory limits to show that the operation remains within the safe enve ...

Elsevier Science Sa2013

Design of the ITER high-frequency magnetic diagnostic coils

Thomas Maeder, Nadine Baluc, René Chavan, Jonathan Bryan Lister, Philippe Marmillod, Duccio Testa, Francisco Sanchez, Matthieu Toussaint

This paper is an overview of work carried out on the design of the ITER high-frequency magnetic diagnostic coil (HF sensor). In the first part, the ITER requirements for the HF sensor are presented. In the second part, the ITER reference design of the HF s ...

Elsevier2011

Functional Performance Analysis and Optimization for the High-Frequency Magnetic Diagnostic System in ITER - II: Detailed Overview of the Analysis Method and of the Test Calculations

René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Duccio Testa, Matthieu Toussaint

The measurement performance of the baseline system design for the ITER high-frequency magnetic diagnostic system and attempts at its optimization have been performed using an innovative method based on the sparse representation of signals and the minimizat ...

American Nuclear Society2009

Upgrade of the TCV tokamak, first phase: Neutral beam heating system

Stefano Alberti, René Chavan, Basil Duval, Damien Fasel, Ambrogio Fasoli, Timothy Goodman, Yves Martin, Olivier Sauter, Alexander Karpushov, Matthieu Toussaint

Experiments on TCV are designed to complement the work at large integrated tokamak facilities (such as JET) to provide a stepwise approach to extrapolation to ITER and DEMO in areas where medium-size tokamaks can often exploit their experimental capabiliti ...

Elsevier Science Sa2015

Development of the ITER Continuous External Rogowski: From conceptual design to final design

Jonathan Bryan Lister, Philippe Marmillod, Christian Schlatter, Duccio Testa, Matthieu Toussaint

In ITER, an accurate measurement of plasma current, with high reliability, is mandatory as this parameter is used to demonstrate licensing compliance with regulatory limits. For that purpose, several independent measurements based on magnetic diagnostics h ...

Elsevier Science Sa2015

V-band Doppler backscattering diagnostic in the TCV tokamak

Pierre Lavanchy, Stefano Coda, Laurie Porte, Matthieu Toussaint, Pedro Andres Molina Cabrera, Nicola Offeddu

A variable configuration V-band heterodyne Doppler back-scattering diagnostic has been recently made operational in the tokamak a configuration variable. This article describes the hardware setup options, flexible quasi-optical launcher antenna, data-analy ...

AMER INST PHYSICS2018

TCV divertor upgrade for alternative magnetic configurations

Patrick Blanchard, Stefano Alberti, René Chavan, Basil Duval, Ambrogio Fasoli, Yves Martin, Jean-Marc Moret, Holger Reimerdes, Stefano Coda, Pierluigi Bruzzone, Marco Wischmeier, Duccio Testa, Benoît Labit, Christian Gabriel Theiler, Matthieu Toussaint, Davide Uglietti, Umar Sheikh, Nicola Vianello

The Swiss Plasma Center (SPC) is planning a divertor upgrade for the TCV tokamak. The upgrade aims at extending the research of conventional and alternative divertor configurations to operational scenarios and divertor regimes of greater relevance for a fu ...

Elsevier2017

Megawatt power generation of the dual-frequency gyrotron for TCV at 84 and 126 GHz, in long pulses

Stefano Alberti, Damien Fasel, Timothy Goodman, Blaise Marlétaz, Minh Quang Tran, Jean-Philippe Hogge, Ugo Siravo, Christian Moura, Jérémie Dubray, Ioannis Pagonakis, Jonathan Sylvain Masur, Matthieu Toussaint, Jérémy Genoud

In the frame of the TCV Tokamak upgrade, two 84/126 GHz/2 s dual frequency gyrotrons designed by SPC and KIT and manufactured by THALES will be added to the existing EC-System. The first unit has been delivered to EPFL-SPC and tested. In the commissioning ...

2020

Assessment of the ITER High-Frequency Magnetic Diagnostic Set

Thomas Maeder, René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Albert Perez, Gilbert Tonetti, Duccio Testa, Francisco Sanchez, Matthieu Toussaint

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with |deltaBmeas/BPOL|~1e-4 (~1G) for frequencies up to 2MHz to resolve toroidal mode numbers (n) in the range |n|=10 to |n|=50. A review of ...

Elsevier2011

Functional Performance Analysis and Optimization for the High-Frequency Magnetic Diagnostic System in ITER - I: Overview of the Results

René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Duccio Testa, Matthieu Toussaint

The measurement performance of the baseline system design for the ITER high-frequency magnetic diagnostic has been analyzed using an algorithm based on the sparse representation of signals. This algorithm, derived from the SparSpec code [S.Bourguignon et a ...

American Nuclear Society2009

Assessment of the ITER high-frequency magnetic diagnostic set

Thomas Maeder, René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Albert Perez, Gilbert Tonetti, Duccio Testa, Francisco Sanchez, Matthieu Toussaint

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with vertical bar delta B-MEAS/B-POL vertical bar similar to 10(-4) (similar to 1 G) for frequencies up to 2 MHz to resolve toroidal mode num ...

Elsevier2011