Edge turbulence measurements in toroidal fusion devices

SJ Zweben, JA Boedo, O Grulke… - Plasma Physics and …, 2007 - iopscience.iop.org
This paper reviews measurements of edge plasma turbulence in toroidal magnetic fusion
devices with an emphasis on recent results in tokamaks. The dominant feature of edge …

[HTML][HTML] Evolution of heavy ion beam probing from the origins to study of symmetric structures in fusion plasmas

A Melnikov - Symmetry, 2021 - mdpi.com
The overview discusses development of the unique fusion plasma diagnostics—Heavy Ion
Beam Probing (HIBP) in application to toroidal magnetic plasma devices. The basis of the …

[图书][B] Electric potential in toroidal plasmas

AV Melnikov - 2019 - Springer
This monograph summarizes the results of an experimental investigation of the plasma
potential in toroidal magnetic fusion devices. It presents data obtained with the unique heavy …

Plasma potential and turbulence dynamics in toroidal devices (survey of T-10 and TJ-II experiments)

AV Melnikov, C Hidalgo, LG Eliseev, E Ascasibar… - Nuclear …, 2011 - iopscience.iop.org
A direct comparison of the electric potential and its fluctuations in the T-10 tokamak and the
TJ-II stellarator is presented for similar plasma conditions in the two machines, using the …

Confinement transitions in TJ-II under Li-coated wall conditions

J Sánchez, M Acedo, A Alonso, J Alonso… - Nuclear …, 2009 - iopscience.iop.org
This paper presents the latest results on confinement studies in the TJ-II stellarator. The
inherently strong plasma–wall interaction of TJ-II has been successfully reduced after lithium …

Measurement and control of turbulence spreading in the scrape-off layer of TJ-II stellarator

G Grenfell, BP Van Milligen, U Losada, W Ting… - Nuclear …, 2018 - iopscience.iop.org
In this paper, we report measurements of turbulence drive and spreading in the edge region
and scrape-off layer (SOL) of the TJ-II stellarator for plasmas heated by ECRH and NBI. In …

ECRH effect on the electric potential and turbulence in the TJ-II stellarator and T-10 tokamak plasmas

AV Melnikov, LI Krupnik, E Ascasibar… - Plasma Physics and …, 2018 - iopscience.iop.org
Electric field Ε or electric potential φ plays a key role in the transport and turbulence of
toroidal plasmas. It is believed that mean radial E r suppresses the turbulence eddies via E× …

Effect of magnetic configuration on frequency of NBI-driven Alfvén modes in TJ-II

AV Melnikov, M Ochando, E Ascasibar… - Nuclear …, 2014 - iopscience.iop.org
Excitation of modes in the Alfvénic frequency range, 30 kHz< f AE< 300 kHz, was observed
in hydrogen plasma heated by hydrogen neutral beam injection (NBI) in the TJ-II heliac. Co …

[HTML][HTML] Experimental observation of the geodesic acoustic frequency limit for the NBI-driven Alfvén eigenmodes in TJ-II

LG Eliseev, AV Melnikov, E Ascasibar, A Cappa… - Physics of …, 2021 - pubs.aip.org
We study Alfvén eigenmodes (AEs) in the TJ-II heliac in hydrogen plasmas heated by
hydrogen co-field neutral beam injector. Taking advantage of the unique TJ-II flexibility in a …

Experimental evidence of coupling between sheared-flow development and an increase in the level of turbulence in the stellarator

C Hidalgo, MA Pedrosa, L García, A Ware - Physical Review E—Statistical …, 2004 - APS
The link between the development of sheared flows and the structure of turbulence has
been investigated in the plasma boundary region of the TJ-II stellarator. The development of …