Experimental observations of driven and intrinsic rotation in tokamak plasmas

JE Rice - Plasma Physics and Controlled Fusion, 2016 - iopscience.iop.org
Experimental observations of driven and intrinsic rotation in tokamak plasmas are reviewed.
For momentum sources, there is direct drive from neutral beam injection, lower hybrid and …

Progress of the KSTAR research program exploring the advanced high performance and steady-state plasma operations

YK Oh, S Yoon, YM Jeon, WH Ko, SH Hong… - Journal of the Korean …, 2018 - Springer
Abstract Korea Superconducting Tokamak Advanced Research (KSTAR) program is
strongly focused on solving the scientific and technological issues in steady-state high …

Energetic particle loss mechanisms in reactor-scale equilibria close to quasisymmetry

EJ Paul, A Bhattacharjee, M Landreman, D Alex… - Nuclear …, 2022 - iopscience.iop.org
Collisionless physics primarily determines the transport of fusion-born alpha particles in 3D
equilibria. Several transport mechanisms have been implicated in stellarator configurations …

Integrated RMP-based ELM-crash-control process for plasma performance enhancement during ELM crash suppression in KSTAR

M Kim, G Shin, J Lee, WH Ko, H Han, SH Hahn… - Nuclear …, 2023 - iopscience.iop.org
Abstract The integrated Resonant Magnetic Perturbation (RMP)-based Edge-Localized
Mode (ELM)-crash-control process aims to enhance the plasma performance during the …

Three-Dimensional Drift Kinetic Response of High- Plasmas in the DIII-D Tokamak

ZR Wang, MJ Lanctot, YQ Liu, JK Park, JE Menard - Physical review letters, 2015 - APS
A quantitative interpretation of the experimentally measured high-pressure plasma response
to externally applied three-dimensional (3D) magnetic field perturbations, across the no-wall …

[HTML][HTML] Magnetic control of magnetohydrodynamic instabilities in tokamaks

EJ Strait - Physics of Plasmas, 2015 - pubs.aip.org
Externally applied, non-axisymmetric magnetic fields form the basis of several relatively
simple and direct methods to control magnetohydrodynamic (MHD) instabilities in a …

Quasisymmetric optimization of nonaxisymmetry in tokamaks

JK Park, SM Yang, NC Logan, Q Hu, C Zhu… - Physical Review Letters, 2021 - APS
Predictive 3D optimization reveals a novel approach to modify a nonaxisymmetric magnetic
perturbation to be entirely harmless for tokamaks, by essentially restoring quasisymmetry in …

The importance of matched poloidal spectra to error field correction in DIII-D

C Paz-Soldan, MJ Lanctot, NC Logan, D Shiraki… - Physics of …, 2014 - pubs.aip.org
Optimal error field correction (EFC) is thought to be achieved when coupling to the least-
stable “dominant” mode of the plasma is nulled at each toroidal mode number (n). The limit …

Neoclassical toroidal viscosity in perturbed equilibria with general tokamak geometry

NC Logan, JK Park, K Kim, Z Wang, JW Berkery - Physics of Plasmas, 2013 - pubs.aip.org
This paper presents a calculation of neoclassical toroidal viscous torque independent of
large-aspect-ratio expansions across kinetic regimes. The Perturbed Equilibrium …

Benchmarking kinetic calculations of resistive wall mode stability

JW Berkery, YQ Liu, ZR Wang, SA Sabbagh… - Physics of …, 2014 - pubs.aip.org
Validating the calculations of kinetic resistive wall mode (RWM) stability is important for
confidently predicting RWM stable operating regions in ITER and other high performance …