Microwave discharges at low pressures and peculiarities of the processes in strongly non-uniform plasma

YA Lebedev - Plasma Sources Science and Technology, 2015 - iopscience.iop.org
Microwave discharges (MD) are widely used as a source of non-equilibrium low pressure
plasma for different applications. This paper reviews the methods of microwave plasma …

Review on recent progress in ion cyclotron range of frequency systems, experiments and modelling for magnetic confinement fusion

J Hillairet - Reviews of Modern Plasma Physics, 2023 - Springer
This paper is a broad overview and a summary of the recent progress achieved in Ion
Cyclotron Range of Frequency (ICRF) systems, experiments and modelling during the last …

A high field side multijunction launcher with aperture impedance matching for lower hybrid current drive in DIII-D advanced tokamak plasmas

AH Seltzman, S Shiraiwa, GM Wallace… - Nuclear …, 2019 - iopscience.iop.org
A high field side (HFS) lower hybrid current drive launch scenario improves wave
accessibility, has single pass damping at r/a~ 0.6–0.8 and good current drive efficiency in …

Evaluation of multipactor thresholds for coaxial lines subject to surface conditioning for the WEST ion cyclotron antenna

EAH Sleiman, J Hillairet, M Belhaj… - Fusion Engineering and …, 2022 - Elsevier
Multipactor voltage threshold charts and scaling laws for 30 Ω circular coaxial geometries,
relevant to the WEST Ion Cyclotron Resonance Heating antennas, are reproduced using a …

Multipactor threshold sensitivity to total electron emission yield in small gap waveguide structure and TEEY models accuracy

N Fil, M Belhaj, J Hillairet, J Puech - Physics of Plasmas, 2016 - pubs.aip.org
Radio-frequency (RF) systems used in vacuum can be damaged by electronic avalanches
triggered by the multipactor effect. This undesirable phenomenon can appear for RF …

First experimental results of the PAM LHCD launcher at 2.45 GHz on EAST

MH Li, L Liu, M Wang, Y Yang, CB Wu, YC Li… - Nuclear …, 2023 - iopscience.iop.org
This paper presents the first results of a passive active multijunction (PAM) launcher at 2.45
GHz during the lower hybrid current drive (LHCD) experiments on EAST. Good coupling …

Multipactor Analysis in Circular Waveguides Excited by TM01 Mode

X Zhang, C Chang, B Gimeno - IEEE Transactions on Electron …, 2019 - ieeexplore.ieee.org
A series of detailed numerical simulations are used to investigate the properties of
multipactor breakdown in circular waveguides propagating the TM01 mode. A Monte Carlo …

Multipactor-triggering powers' modelling of a west icrh antenna during RF conditioning

EAH Sleiman, J Hillairet… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
During radio frequency (RF) conditioning of the ion cyclotron resonance heating (ICRH)
system on WEST, under vacuum, pressure rises are measured inside the antennas. A …

Design and analysis of a PAM launcher at 4.6 GHz for a new LHCD system on EAST

MH Li, L Liu, Y Yang, LM Zhao, WD Ma, TA Zhou… - Nuclear …, 2024 - iopscience.iop.org
Abstract To improve the Current Drive (CD) capability in long-pulse (up to∼ 1000 s) H-mode
operation, it has been decided to develop a new Lower Hybrid Current Drive system at 4.6 …

Multipactor in high power radio-frequency systems for nuclear fusion

J Hillairet, M Goniche, N Fil, M Belhaj… - arXiv preprint arXiv …, 2017 - arxiv.org
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 …