Resonant magnetic perturbations of edge-plasmas in toroidal confinement devices

TE Evans - Plasma Physics and Controlled Fusion, 2015 - iopscience.iop.org
Controlling the boundary layer in fusion-grade, high-performance, plasma discharges is
essential for the successful development of toroidal magnetic confinement power generating …

Suppression of Edge Localized Modes in High-Confinement KSTAR Plasmas<? format?> by Nonaxisymmetric Magnetic Perturbations

YM Jeon, JK Park, SW Yoon, WH Ko, SG Lee, KD Lee… - Physical review …, 2012 - APS
Edge localized modes (ELMs) in high-confinement mode plasmas were completely
suppressed in KSTAR by applying n= 1 nonaxisymmetric magnetic perturbations. Initially …

[HTML][HTML] Recent progress on spherical torus research

M Ono, R Kaita - Physics of Plasmas, 2015 - pubs.aip.org
The spherical torus or spherical tokamak (ST) is a member of the tokamak family with its
aspect ratio (A= R 0/a) reduced to A∼ 1.5, well below the normal tokamak operating range …

Overview of the physics and engineering design of NSTX upgrade

JE Menard, S Gerhardt, M Bell, J Bialek… - Nuclear …, 2012 - iopscience.iop.org
The spherical tokamak (ST) is a leading candidate for a Fusion Nuclear Science Facility
(FNSF) due to its compact size and modular configuration. The National Spherical Torus …

The effect of progressively increasing lithium coatings on plasma discharge characteristics, transport, edge profiles and ELM stability in the National Spherical Torus …

R Maingi, DP Boyle, JM Canik, SM Kaye… - Nuclear …, 2012 - iopscience.iop.org
Lithium wall coatings have been shown to reduce recycling, suppress edge-localized modes
(ELMs), and improve energy confinement in the National Spherical Torus Experiment …

Reduction of Edge-Localized Mode Intensity Using High-Repetition-Rate <?format ?>Pellet Injection in Tokamak -Mode Plasmas

LR Baylor, N Commaux, TC Jernigan, NH Brooks… - Physical review …, 2013 - APS
High repetition rate injection of deuterium pellets from the low-field side (LFS) of the DIII-D
tokamak is shown to trigger high-frequency edge-localized modes (ELMs) at up to 12× the …

Effects of 3D magnetic perturbations on toroidal plasmas

JD Callen - Nuclear Fusion, 2011 - iopscience.iop.org
Abstract Small three-dimensional (3D) magnetic field perturbations have many interesting
and possibly useful effects on tokamak and quasi-symmetric stellarator plasmas. Plasma …

ELM elimination with Li powder injection in EAST discharges using the tungsten upper divertor

R Maingi, JS Hu, Z Sun, K Tritz, GZ Zuo, W Xu… - Nuclear …, 2018 - iopscience.iop.org
We report the first successful use of lithium (Li) to eliminate edge-localized modes (ELMs)
with tungsten divertor plasma-facing components in the EAST device. Li powder injected …

Continuous improvement of H-mode discharge performance with progressively increasing lithium coatings in the National Spherical Torus Experiment

R Maingi, SM Kaye, CH Skinner, DP Boyle, JM Canik… - Physical review …, 2011 - APS
Lithium wall coatings have been shown to reduce recycling, improve energy confinement,
and suppress edge localized modes in the National Spherical Torus Experiment. Here, we …

Role of singular layers in the plasma response to resonant magnetic perturbations

FL Waelbroeck, I Joseph, E Nardon, M Bécoulet… - Nuclear …, 2012 - iopscience.iop.org
The response of an H-mode plasma to magnetic perturbations that are resonant in the edge
is evaluated using a fluid model. With two exceptions, the plasma rotation suppresses the …