Concept
Direct energy conversion
Related publications (40)
Implementation of energy transfer technique in ORB5 to study collisionless wave-particle interactions in phase-space
Laurent Villard, Emmanuel Lanti, Alberto Bottino, Noé Thomas Elie Ohana, Emanuele Poli
A new diagnostic has been developed to investigate the wave-particle interaction in the phase-space in gyrokinetic particle-in-cell codes. Keeping information about energy transfer terms in the velocity space, the technique has been implemented and tested ...
ELSEVIER2021Large Area Diamond Disk Growth Experiments and Thermomechanical Investigations for the Broadband Brewster Window in DEMO
Minh Quang Tran, Konstantinos Avramidis
An electron cyclotron system (ECS) is required in the European DEMO fusion reactor for plasma heating, magnetohydrodynamic control, especially the suppression of neoclassical tearing modes (NTMs), and thermal instability control. Microwave beams of 2 MW, g ...
2021Fully Soft-Switched High Step-Up Nonisolated Three-Port DC-DC Converter Using GaN HEMTs
Marco Mattavelli, Elison de Nazareth Matioli, Georgios Kampitsis, Rasoul Faraji
In this article, a soft-switched nonisolated high step-up multi-input dc-dc converter is proposed. The proposed converter has overcome the hard switching problem of the conventional boost three port converter (boost-TPC) by providing zero-voltage-switching ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020Advanced linear models for gyro-backward wave instabilities in gyrotrons
Parasitic oscillations excitation is one of the main point hindering high-power gyrotron operation for fusion application. These instabilities, besides being dangerous for the gyrotron components, could possibly degrade
the electron beam quality before it ...
EPFL2019From W7-X Towards ITER and Beyond: 2019 Status on EU Fusion Gyrotron Developments
Stefano Alberti, Jean-Philippe Hogge, Damien Fasel, Jérémy Genoud, Jérémie Dubray, Ioannis Pagonakis, Blaise Marlétaz, Konstantinos Avramidis
In Europe, the research and development with main focus on achieving robust industrial designs of series gyrotrons for electron cyclotron heating and current drive of today's nuclear fusion experiments and towards a future DEMOnstration fusion power plant ...
IEEE2019Diamond Window Technology for Electron Cyclotron Heating and Current Drive: State of the Art
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 INC2019MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces
Laurent Villard, Andrei Martynov
Abandoning the assumption of nested magnetic surfaces in tokamak plasma expands the field of research and opens up new approaches for both theoretical and experimental plasma physics. The computer code KINX for calculations of the ideal MHD stability was d ...
PLEIADES PUBLISHING INC2019Overview of recent gyrotron R&D towards DEMO within EUROfusion Work Package Heating and Current Drive
Jean-Philippe Hogge, Jérémy Genoud, Ioannis Pagonakis, Martin Schmid, Konstantinos Avramidis
Gyrotron R&D within the EUROfusion Work Package Heating and Current Drive (WPHCD) is addressing the challenging requirements posed on gyrotrons by the European concept for a demonstration fusion power plant (EU DEMO). These requirements, as specified withi ...
IOP PUBLISHING LTD2019A gyrokinetic model for the plasma periphery of fusion devices
Paolo Ricci, Rogério Manuel Cabete De Jesus Jorge, Baptiste Jimmy Frei
Understanding the turbulent dynamics of the plasma in the periphery of fusion devices - the region extending from the external part of the closed flux surface region to the scrape-off layer - is of crucial importance on the way to fusion energy. Indeed, th ...
2019Recent experiments with the European 1MW, 170GHz industrial CW and short-pulse gyrotrons for ITER
Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Christian Schlatter, Jérémy Genoud, Francisco Sanchez, Ioannis Pagonakis, Konstantinos Avramidis
The European Gyrotron Consortium (EGYC) is developing the European 1 MW, 170 GHz Continuous Wave (CW) industrial prototype gyrotron for ITER in cooperation with Thales Electron Devices (TED) and Fusion for Energy (F4E). This conventional, hollow-cavity gyr ...
ELSEVIER SCIENCE SA2019