Publications associées à Progress on the ITER upper launcher millimeter wave design and Testing

Study of correlations between LOC/SOC transition, intrinsic toroidal rotation reversal and TEM/ITG bifurcation with different working gases in TCV

Basil Duval, Oleg Krutkin, Filippo Bagnato, Aylwin Iantchenko

The effects of different working gases on the transition from linear ohmic confinement (LOC) regime to saturated ohmic confinement (SOC) regime and its relation to the intrinsic toroidal rotation reversal phenomenon were explored in the TCV tokamak. The en ...

IOP Publishing Ltd2023

Physics and applications of three-ion ICRF scenarios for fusion research

Henri Weisen, Javier García Hernández, Mikhail Maslov, Samuele Mazzi

This paper summarizes the physical principles behind the novel three-ion scenarios using radio frequency waves in the ion cyclotron range of frequencies (ICRF). We discuss how to transform mode conversion electron heating into a new flexible ICRF technique ...

AMER INST PHYSICS2021

High-Power Testing of Guided-Wave Components for the ITER ECH Upper Launcher at the FALCON Test Facility

Timothy Goodman, René Chavan, Matteo Vagnoni

Each of the four ITER electron cyclotron heating (ECH) upper launchers (ULs) features eight transmission lines (TLs) made of guided-wave components used to inject 170-GHz microwave power into the plasma at a level of up to 1.31 MW per line, at the TL diamo ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

Diamond Window Technology for Electron Cyclotron Heating and Current Drive: State of the Art

Konstantinos Avramidis

Nuclear fusion power plants require electron cyclotron (EC) heating and current drive (H&CD) systems for plasma heating and stabilization. High-power microwave beams between 1 and 2?MW generated by gyrotrons propagate in a dedicated waveguide transmission ...

TAYLOR & FRANCIS INC2019

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

Extension of the operating space of high-beta(N) fully non-inductive scenarios on TCV using neutral beam injection

Olivier Sauter, Timothy Goodman, Duccio Testa, Alexander Karpushov, Antoine Pierre Emmanuel Alexis Merle, Mengdi Kong, Javier García Hernández, Matteo Vallar, Leonardo Pigatto

The fully non-inductive sustainment of high normalized beta plasmas (beta(N)) is a crucial challenge for the steady-state operation of a tokamak reactor. In order to assess the difficulties facing such scenarios, steady-state regimes have been explored on ...

2019

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

Stefano Alberti, Ivo Furno, Oulfa Chellaï

There has been a growing interest, over the past few years, on understanding the effect on radio frequency waves due to turbulence in the scrape-off layer of tokamak plasmas. While the far scrape-off layer density width is of the order of centimetres in co ...

CAMBRIDGE UNIV PRESS2018

Conceptual design of the EU DEMO EC-system: main developments and R&D achievements

Stefano Alberti, Minh Quang Tran, Falk Hans Braunmüller, Ioannis Pagonakis, Emanuele Poli, Konstantinos Avramidis

For the development of a DEMOnstration Fusion Power Plant the design of auxiliary heating systems is a key activity in order to achieve controlled burning plasma. The present heating mix considers electron cyclotron resonance heating (ECRH), neutral beam i ...

Iop Publishing Ltd2017

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Progress on the ITER upper launcher millimeter wave design and Testing

Study of correlations between LOC/SOC transition, intrinsic toroidal rotation reversal and TEM/ITG bifurcation with different working gases in TCV

Physics and applications of three-ion ICRF scenarios for fusion research

High-Power Testing of Guided-Wave Components for the ITER ECH Upper Launcher at the FALCON Test Facility

Diamond Window Technology for Electron Cyclotron Heating and Current Drive: State of the Art

Non-linear simulations of neoclassical tearing mode control by externally driven RF current and heating, with application to ITER

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

Extension of the operating space of high-beta(N) fully non-inductive scenarios on TCV using neutral beam injection

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

Sawtooth pacing with on-axis ICRH modulation in JET-ILW

Conceptual design of the EU DEMO EC-system: main developments and R&D achievements

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Chattez avec Graph Search

Physics and applications of three-ion ICRF scenarios for fusion research

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

Diamond Window Technology for Electron Cyclotron Heating and Current Drive: State of the Art

Study of correlations between LOC/SOC transition, intrinsic toroidal rotation reversal and TEM/ITG bifurcation with different working gases in TCV

High-Power Testing of Guided-Wave Components for the ITER ECH Upper Launcher at the FALCON Test Facility

Non-linear simulations of neoclassical tearing mode control by externally driven RF current and heating, with application to ITER

Sawtooth pacing with on-axis ICRH modulation in JET-ILW

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

Conceptual design of the EU DEMO EC-system: main developments and R&D achievements

Extension of the operating space of high-beta(N) fully non-inductive scenarios on TCV using neutral beam injection