22 citations · 101 across the 13 of their papers we have counts for
13 papers
ANSYS HFSS as a new numerical tool to study wave propagation inside anisotropic magnetized plasmas in the Ion Cylotron Range of Frequencies
V. Maquet, R. Ragona, D. Van Eester +2
The paper demonstrates the possibility to use ANSYS HFSS as a versatile simulating tool for antennas facing inhomogeneous anisotropic magnetized plasmas in the Ion Cyclotron Range…
Minimization of the edge modes and near fields of a Travelling Wave Array antenna for WEST
V. Maquet, R. Ragona, F. Durodié +1
The Travelling Wave Array (TWA) antenna was proposed as a promising alternative for Ion Cyclotron Resonant Heating (ICRH) in future fusion reactors. In this study, the possibility…
Global scaling of the heat transport in fusion plasmas
Sara Moradi, Johan Anderson, Michele Romanelli +2
A global heat flux model based on a fractional derivative of plasma pressure is proposed for the heat transport in fusion plasmas. The degree of the fractional derivative of the he…
Characterizations of thermal stability and electrical performance of Au-Ni coating on CuCrZr substrate for high vacuum radio-frequency contact application
Z Chen, Julien Hillairet, V. Turq +11
Radio-frequency (RF) contacts-which are an example of electrical contacts-are commonly employed on accelerators and nuclear fusion experimental devices. RF contacts with a current…
Multipactor in High Power Radio-Frequency Systems for Nuclear Fusion
Julien Hillairet, Marc Goniche, Nicolas Fil +2
Magnetic confinement fusion researches are an approach to demonstrate the feasibility of nuclear fusion power for energy production. In these experiments, mega-watt range power Rad…
Radiofrequency and Mechanical Tests of Silver Coated CuCrZr Contacts for the ITER Ion Cyclotron Antenna
Julien Hillairet, Z. Chen, G Lombard +16
The ITER Ion Cyclotron Resonance Heating (ICRH) system is designed to couple to the plasma 20 MW of RF power from two antennas in the 40-55 MHz frequency range during long pulses o…
Spatial proximity effects on the excitation of Sheath RF Voltages by evanescent Slow Waves in the Ion Cyclotron Range of Frequencies
Laurent Colas, Ling-Feng Lu, Alena Křivská
We investigate theoretically how sheath radio-frequency (RF) oscillations relate to the spatial structure of the near RF parallel electric field E// emitted by Ion Cyclotron (IC) w…
Ion cyclotron resonance heating systems upgrade toward high power and CW operations in WEST
Julien Hillairet, Patrick Mollard, Yanping Zhao +33
The design of the WEST (Tungsten-W Environment in Steady-state Tokamak) Ion cyclotron resonance heating antennas is based on a previously tested conjugate-T Resonant Double Loops p…
R&D activities on RF contacts for the ITER ion cyclotron resonance heating launcher
Julien Hillairet, Arnaud Argouarch, Rob Bamber +23
Embedded RF contacts are integrated within the ITER ICRH launcher to allow assembling, sliding and to lower the thermo-mechanical stress. They have to withstand a peak RF current u…
Design and RF measurements of a 5 GHz 500 kW window for the ITER LHCD system
Julien Hillairet, J. Achard, N. Dechambre +13
CEA/IRFM is conducting R\&D efforts in order to validate the critical RF components of the 5 GHz ITER LHCD system, which is expected to transmit 20 MW of RF power to the plasma. Tw…
Lower Hybrid antennas for nuclear fusion experiments
Julien Hillairet, J. Achard, Young-Soon Bae +40
The nuclear fusion research goal is to demonstrate the feasibility of fusion power for peaceful purposes. In order to achieve the conditions similar to those expected in an electri…
Recent progress on lower hybrid current drive and implications for ITER
Julien Hillairet, A. Ekedahl, M. Goniche +23
The sustainment of steady-state plasmas in tokamaks requires efficient current drive systems. Lower Hybrid Current Drive (LHCD) is currently the most efficient method to generate a…
Design and Tests of 500kW RF Windows for the ITER LHCD System
Julien Hillairet, J Kim, N Faure +10
In the frame of a R\&D effort conducted by CEA toward the design and the qualification of a 5 GHz LHCD system for the ITER tokamak, two 5 GHz 500 kW/5 s windows have been designed,…