Publications associées à Alfven cascade eigenmodes above the TAE-frequency and localization of Alfven modes in D-He-3 plasmas on JET

Publications associées (15)

The quasi-continuous exhaust regime in JET

The quasi-continuous exhaust (QCE) regime is a regime that is naturally type-I ELM-free. It combines the high density at the plasma edge needed for power exhaust with the high normalised energy confinement typical for H-mode operation. In the QCE regime la ...

IOP Publishing Ltd2025

Electron trapping in gyrotron electron guns: Validation of the FENNECS code with the T-REX experiment

Stefano Alberti, Timothy Goodman, Jean-Philippe Hogge, Mario Ludovico Podesta, Joaquim Loizu Cisquella, Jérémy Genoud, Guillaume Michel Le Bars, Falk Hans Braunmüller, Francesco Romano, Pierrick Paul Louis Giroud-Garampon

Gyrotrons are essential devices for the development of nuclear fusion, but their design and reliable operation still present numerous challenges. In particular, certain gyrotrons encounter issues related to trapped electron clouds in the magnetron injectio ...

AIP Publishing2025

Generalization of a fast, predictive model for tokamak scenario design in ASTRA and comparison to a RAPTOR model

Simon Van Mulders

Early heating tokamak plasmas during the current ramp-up is a common approach to efficiently access advanced tokamak (AT) configurations. We have previously presented an analytical predictive model to aid in the AT scenario design, optimized for a single s ...

IOP Publishing Ltd2025

MonoliThic Millimeter Wave Generation and Detection from Resonant Lithium Niobate Circuits

Ileana-Cristina Benea-Chelmus, Jiawen Liu, Ghalia Dhaoui, Aleksei Gaier

High-frequency electro-magnetic waves, including millimeter wave (mmWave) and terahertz, represent a frontier of research with transformative potentials in next-generation wireless communication, advanced sensing and imaging, and quantum science and applic ...

IEEE2025

A control oriented strategy of disruption prediction to avoid the configuration collapse of tokamak reactors

Patrick Blanchard, Ambrogio Fasoli, Olivier Sauter, Henri Weisen, Duccio Testa, Federico Alberto Alfredo Felici, Umar Sheikh, Paulo Giovane Paschoali Pereira Puglia, Eduardo José Lascas Neto, Cristian Sommariva, Davide Galassi, Mike Machielsen, Alessandro Pau, Gino Marceca

The objective of thermonuclear fusion consists of producing electricity from the coalescence of light nuclei in high temperature plasmas. The most promising route to fusion envisages the confinement of such plasmas with magnetic fields, whose most studied ...

Nature Research2024

Vertical Instability Studies in the TCV Tokamak and Development and Application of Multimachine Real-Time Proximity Control Strategies

Stefano Marchioni

Controlled thermonuclear fusion is a promising energy source for humanity's future. Achieving sufficient fusion reactions for energy production requires hot, dense, and well-confined plasma. Tokamaks have proven effective at confining plasma using magnetic ...

EPFL2024

SPLEND1D, a reduced one-dimensional model to investigate the physics of plasma detachment

Christian Gabriel Theiler, Kim Dimuth Von Allmen, Olivier Claude Martin Février, Garance Hélène Salomé Durr-Legoupil-Nicoud, Sophie Danielle Angelica Gorno, Massimo Carpita

Studying the process of divertor detachment and the associated complex interplay of plasma dynamics and atomic physics processes is of utmost importance for future fusion reactors. While simplified analytical models exist to interpret the general features ...

American Institute of Physics (AIP)2024

Self-consistent gyrokinetic modeling of turbulent and neoclassical tungsten transport in toroidally rotating plasmas

Kyungtak Lim

The effect of toroidal rotation on both turbulent and neoclassical transport of tungsten (W) in tokamaks is investigated using the flux-driven, global, nonlinear 5D gyrokinetic code GYSELA. Nonlinear simulations are carried out with different levels of mom ...

2023

Fast dynamic 1D simulation of divertor plasmas with neural PDE surrogates

Yoeri Renier Johannes Poels

Managing divertor plasmas is crucial for operating reactor scale tokamak devices due to heat and particle flux constraints on the divertor target. Simulation is an important tool to understand and control these plasmas, however, for real-time applications ...

IOP Publishing Ltd2023

Flexible, integrated modeling of tokamak stability, transport, equilibrium, and pedestal physics

Olivier Sauter

The STEP (Stability, Transport, Equilibrium, and Pedestal) integrated-modeling tool has been developed in OMFIT to predict stable, tokamak equilibria self-consistently with core-transport and pedestal calculations. STEP couples theory-based codes to integr ...

Aip Publishing2023

Ab initio study of water dissociation on a charged Pd(111) surface

Guoyuan Liu

The interactions between molecules and electrode surfaces play a key role in electrochemical processes and are a subject of extensive research, both experimental and theoretical. In this paper, we address the water dissociation reaction on a Pd(111) electr ...

2023

Supercontinuum in integrated photonics: generation, applications, challenges, and perspectives

Camille Sophie Brès

Frequency conversion in nonlinear materials is an extremely useful solution to the generation of new optical frequencies. Often, it is the only viable solution to realize light sources highly relevant for applications in science and industry. In particular ...

2023

Experimental Assessment of the Thermal Strain Distribution in Nb3Sn React & Wind Conductor Prototype for European DEMO

Kamil Sedlák, Chiara Frittitta

In a typical Nb3Sn cable for fusion applications, the knowledge of the strain state of Nb3Sn filaments is important to predict and interpret the conductor performance in operation. Amongst the relevant strain sources, the predominant is the thermal strain ...

IEEE Institute of Electrical and Electronics Engineers2022

Partitioned and Monolithic Algorithms for the Numerical Solution of Cardiac Fluid-Structure Interaction

Alfio Quarteroni

We review and compare different fluid-structure interaction (FSI) numerical methods in the context of heart modeling, aiming at assessing their computational ef-ficiency for cardiac numerical simulations and selecting the most appropriate method for heart ...

GLOBAL SCIENCE PRESS2022

Disclosing the response of the surface electronic structure in SrTiO3 (001) to strain

Jan Hugo Dil

Combining angle-resolved photoemission spectroscopy and density functional theory calculations, we addressed the surface electronic structure of bent SrTiO 3 (STO) (001) wafers. Using a custom-made device, we observe that the low-dimensional states that em ...

2022