Publications associées à Neutral beam injector for plasma heating on the TCV tokamak – 3 years of operation: status, scientific results and technical improvements

Publications associées (18)

Effect of Ion Irradiation on the Surface Electrical Conductivity of Cucrzr at High Frequencies

René Chavan, Timothy Goodman, Jean-Philippe Hogge, Jérémy Genoud, Avelino Mas Sanchez, Anastasia Xydou, Cinta Lucia Marraco Borderas, Daniel Birlan

The ohmic losses in the Electron Cyclotron Heating system of the DEMO nuclear fusion reactor depend on the surface electrical conductivity of the material at the frequency of the mm-wave beams generated in the gyrotrons. To reduce the ohmic losses, many co ...

ELSEVIER SCIENCE SA2025

Overview of the EUROfusion Tokamak Exploitation programme in support of ITER and DEMO

Patrick Blanchard, Basil Duval, Timothy Goodman, Jean-Marc Moret, Olivier Sauter, Henri Weisen, Holger Reimerdes, Stefano Coda, Alexander Karpushov, Duccio Testa, Benoît Labit, Christian Gabriel Theiler, Federico Alberto Alfredo Felici, Antoine Pierre Emmanuel Alexis Merle, Joan Decker, Cedric Kar-Wai Tsui, Umar Sheikh, Cristian Galperti, Marcelo Baquero Ruiz, Aylwin Iantchenko, Mengdi Kong, Hari Raj, Olivier Claude Martin Février, Paulo Giovane Paschoali Pereira Puglia, Simon Van Mulders, Nicola Offeddu, Garance Hélène Salomé Durr-Legoupil-Nicoud, Filippo Bagnato, Davide Galassi, Nam Axel David Vu, Lorenzo Martinelli, Jean Arthur Cazabonne, Alessandro Pau, Matteo Vallar, Sophie Danielle Angelica Gorno, Claudia Colandrea, Dmytry Mykytchuk, Benjamin Alexandre Vincent, Gino Marceca, Davide Mancini, Cassandre Ekta Contré, Renat Karimov, Guang-Yu Sun, Stefano Marchioni, Umesh Kumar, Oleg Krutkin, Francesco Pastore, Mackenzie Peter-Fulford Van Rossem, Luke Simons, Michele Marin, Elena Tonello, Jesús Poley Sanjuán, Samuele Mazzi, Carl Mathias Paul Hoppe, Massimo Carpita, Artur Perek, Emanuel Paul Huett, Antonia Frank, Martim Zurita, Alessandro Balestri, Yoeri Renier Johannes Poels, Anton Jansen Van Vuuren, Aleksandr Listopad, Pacôme Henryk Cécil Devleeshouver

Within the 9th European Framework programme, since 2021 EUROfusion is operating five tokamaks under the auspices of a single Task Force called ‘Tokamak Exploitation’. The goal is to benefit from the complementary capabilities of each machine in a coordinat ...

IOP Publishing Ltd2024

Development of a high current density, high temperature superconducting cable for pulsed magnets

Manuel Holenstein, Markus Jenni, Kamil Sedlák

A low-AC loss Rare-earth barium copper oxide (REBCO) cable, based on the VIPER cable technology has been developed by commonwealth fusion systems for use in high-field, compact tokamaks. The new cable is composed of partitioned and transposed copper ‘petal ...

IOP Publishing Ltd2024

Nonlinear simulation of plasma turbulence using a gyrokinetic moment-based approach

Antoine Cyril David Hoffmann

Plasma turbulence plays a fundamental role in determining the performances of magnetic confinement fusion devices, such as tokamaks. Advances in computer science, combined with the development of efficient physical models, have significantly improved our u ...

EPFL2024

Measurement of stripping losses in the negative ion source SPIDER

Riccardo Agnello

The negative ion source SPIDER at Consorzio RFX (Italy) is a crucial experimental step towards the development of the Heating Neutral Beam (HNB) injectors for ITER. The goal of SPIDER is to operate and optimize a full-scale negative ion source in hydrogen ...

ELSEVIER SCIENCE SA2023

Gas puff imaging on the TCV tokamak

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

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

Modeling of saturated external MHD instabilities in tokamaks: A comparison of 3D free boundary equilibria and nonlinear stability calculations

Jonathan Graves

3D free boundary equilibrium computations have recently been used to model external kinks and edge harmonic oscillations (EHOs), comparing with linear MHD stability codes, and nonlinear analytic theory [Kleiner et al., Phys. Plasma Controlled Fusion 61, 08 ...

2022

Negative hydrogen ion dynamics inside the plasma volume of a linear device: Estimates from particle-in-cell calculations

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno, Rémy Jacquier, Riccardo Agnello

Negative hydrogen or deuterium ions are the precursor particles used to generate a high power beam of neutrals in order to heat the tokamak plasma core of magnetic fusion devices, inject current, and to some extent control instabilities. In the case of ITE ...

2021

Initial TCV operation with a baffled divertor

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Jean-Marc Moret, Holger Reimerdes, Duccio Testa, Christian Gabriel Theiler, Matthieu Toussaint, Hugo De Oliveira, Cedric Kar-Wai Tsui, Umar Sheikh, Marcelo Baquero Ruiz, Roberto Maurizio, Mirko Wensing, Filippo Bagnato, Davide Galassi, Lorenzo Martinelli, Sophie Danielle Angelica Gorno, Claudia Colandrea, Harshita Raj, Artur Perek

The Tokamak à Configuration Variable (TCV) tokamak is in the midst of an upgrade to further its capability to investigate conventional and alternative divertor configurations. To that end, modular and removable gas baffles have been installed to decrease t ...

IOP Publishing Ltd2021

Wall conditioning in fusion devices with superconducting coils

Stefano Coda

Wall conditioning is essential in tokamak and stellarator research to achieve plasma performance and reproducibility. This paper presents an overview of recent conditioning results, both from experiments in present devices and modelling, in view of devices ...

IOP PUBLISHING LTD2020

Millimeter-wave beam scattering by edge-plasma density fluctuations in TCV

Stefano Alberti, Timothy Goodman, Ivo Furno, Benoît Labit, Paolo Ricci, Fabio Riva, Oulfa Chellaï, Marcelo Baquero Ruiz

In magnetically confined fusion devices, the use of millimeter waves (mmw) at the electron cyclotron (EC) frequencies ranges from plasma diagnostics to plasma heating, current drive and core confinement preservation. For large tokamaks such as ITER, numeri ...

2019

Investigation of deuterium trapping and release in the JET divertor during the third ILW campaign using TDS

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Yves Martin, Richard Pitts, Olivier Sauter, Henri Weisen, Stefano Coda, Marco Wischmeier, Jan Horacek, Yann Camenen, Jonathan Graves, Duccio Testa, Mikhail Maslov, Javier García Hernández, David Pfefferlé, Dalziel Joseph Wilson, Jonathan Marc Philippe Faustin, Federico Nespoli, Hamish William Patten, Nicola Vianello, Antonio José Pereira de Figueiredo, Samuel Lanthaler, Liang Yao, Cristian Sommariva, Davide Galassi, Alessandro Pau

Selected set of samples from JET ITER-Like Wall (JET-ILW) divertor tiles exposed in 2015-2016 has been analysed using Thermal Desorption Spectrometry (TDS). The deuterium (D) amounts obtained with TDS were compared with Nuclear Reaction Analysis (NRA). The ...

Elsevier2019

The effect of beryllium oxide on retention in JET ITER-like wall tiles

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Yves Martin, Richard Pitts, Olivier Sauter, Henri Weisen, Stefano Coda, Marco Wischmeier, Jan Horacek, Yann Camenen, Jonathan Graves, Duccio Testa, Mikhail Maslov, Javier García Hernández, David Pfefferlé, Dalziel Joseph Wilson, Jonathan Marc Philippe Faustin, Federico Nespoli, Hamish William Patten, Bruno Emanuel Ferreira De Sousa Correia, Nicola Vianello, Antonio José Pereira de Figueiredo, Samuel Lanthaler, Liang Yao, Cristian Sommariva, Davide Galassi, Alessandro Pau

Preliminary results investigating the microstructure, bonding and effect of beryllium oxide formation on retention in the JET ITER-like wall beryllium tiles, are presented. The tiles have been investigated by several techniques: Scanning Electron Microscop ...

Elsevier2019

A multi-machine scaling of halo current rotation

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Yves Martin, Richard Pitts, Olivier Sauter, Henri Weisen, Robin Humphry-Baker, Stefano Coda, Martinus Adela Maria Gijs, Partha Dutta, Marco Wischmeier, Jan Horacek, Vlad Trifa, Yann Camenen, Jonathan Graves, Duccio Testa, Miguel Fernández Ruiz, Sun Hee Kim, Mikhail Maslov, Javier García Hernández, David Pfefferlé, José Pedro Rebelo Ferreira Marques, Julio Rodriguez, Pedro Camilo de Oliveira e Silva, Rebecca Hill, Daniel Scott Alessi, Jonnathan Cesar Hidalgo Acosta, Ana Francisca Leal Silva Soares, Dalziel Joseph Wilson, Pierre-Thomas Paul Brun, Jonathan Marc Philippe Faustin, Federico Nespoli, Alberto Hernando de Castro, Hamish William Patten, Bruno Emanuel Ferreira De Sousa Correia, Li Shuai, Nicola Vianello, Antonio José Pereira de Figueiredo, Samuel Lanthaler, Liang Yao, Arnout Lodewijk M Beckers, Cristian Sommariva, Davide Galassi, Alessandro Pau

Halo currents generated during unmitigated tokamak disruptions are known to develop rotating asymmetric features that are of great concern to ITER because they can dynamically amplify the mechanical stresses on the machine. This paper presents a multi-mach ...

IOP Publishing Ltd2018

Overview Of Neutron Measurements In Jet Fusion Device

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Yves Martin, Richard Pitts, Olivier Sauter, Henri Weisen, Robin Humphry-Baker, Stefano Coda, Martinus Adela Maria Gijs, Partha Dutta, Marco Wischmeier, Jan Horacek, Vlad Trifa, Yann Camenen, Jonathan Graves, Duccio Testa, Miguel Fernández Ruiz, Sun Hee Kim, Mikhail Maslov, Javier García Hernández, David Pfefferlé, José Pedro Rebelo Ferreira Marques, Julio Rodriguez, Pedro Camilo de Oliveira e Silva, Rebecca Hill, Daniel Scott Alessi, Jonnathan Cesar Hidalgo Acosta, Ana Francisca Leal Silva Soares, Dalziel Joseph Wilson, Pierre-Thomas Paul Brun, Jonathan Marc Philippe Faustin, Federico Nespoli, Alberto Hernando de Castro, Hamish William Patten, Bruno Emanuel Ferreira De Sousa Correia, Li Shuai, Nicola Vianello, Antonio José Pereira de Figueiredo, Samuel Lanthaler, Liang Yao, Arnout Lodewijk M Beckers, Cristian Sommariva, Davide Galassi, Alessandro Pau

The design and operation of ITER experimental fusion reactor requires the development of neutron measurement techniques and numerical tools to derive the fusion power and the radiation field in the device and in the surrounding areas. Nuclear analyses prov ...

2018

Linearized model Fokker-Planck collision operators for gyrokinetic simulations. II. Numerical implementation and tests

Paolo Ricci

A set of key properties for an ideal dissipation scheme in gyrokinetic simulations is proposed, and implementation of a model collision operator satisfying these properties is described. This operator is based on the exact linearized test-particle collisio ...

American Institute of Physics2009

Plasma shape stabilization of current rise MHD instabilities in TCV

Yves Martin, Antoine Pochelon, Andrea Scarabosio

The well-known and potentially disruptive plasma 'current rise' instabilities are studied as a function of the plasma shape in the Tokamak a a Configuration Variable (TCV). Disruptions typically occur in quasi-circular plasmas at q(a) - 3 in both non-sawto ...

2007

Recent electron cyclotron emission results on TCV

Patrick Blanchard, Basil Duval, Timothy Goodman, Pierre-François Isoz, Xavier Llobet, Philippe Marmillod, Olivier Sauter, Henri Weisen, Stefano Coda, Christian Schlatter, Igor Klimanov, Laurie Porte, Emiliano Fable

Electron cyclotron emission (ECE) diagnostics on Tokamak a Configuration Variable (TCV) allow study of the electron temperature evolution in time with good spatial and temporal resolution at the high field side and low field side at various lines of sight. ...

2007