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 …

Non-equilibrium formation and relaxation of magnetic flux ropes at kinetic scales

YD Yoon, M Laishram, TE Moore, GS Yun - Communications Physics, 2024 - nature.com
Magnetic flux ropes are pivotal structures and building blocks in astrophysical and
laboratory plasmas, and various equilibrium models have thus been studied in the past …

Quasi 3D ECE imaging system for study of MHD instabilities in KSTAR

GS Yun, W Lee, MJ Choi, J Lee, M Kim… - Review of Scientific …, 2014 - pubs.aip.org
A second electron cyclotron emission imaging (ECEI) system has been installed on the
KSTAR tokamak, toroidally separated by 1/16th of the torus from the first ECEI system. For …

Experimental study of core MHD events in thousand-second improved confinement plasma on the EAST tokamak

L Xu, Y Chu, S Lin, E Li, T Zhou, C Mai, Y Huang… - Nuclear …, 2023 - iopscience.iop.org
Recently, stationary plasma with a world-record pulse length of 1056 s was achieved on the
Experimental Advanced Superconducting Tokamak (EAST). In this work, the core …

Frontiers in fusion research II

M Kikuchi, M Azumi - Introduction to modern tokamak physics. Heidelberg …, 2015 - Springer
The purpose of this monograph is to provide an introduction to modern tokamak physics, as
an extension of our review paper “Steady State Tokamak Research—Core Physics” …

Improved accuracy in the estimation of the tearing mode stability parameters (Δ′ and wc) using 2D ECEI data in KSTAR

MJ Choi, GS Yun, W Lee, HK Park, YS Park… - Nuclear …, 2014 - iopscience.iop.org
The accuracy in estimation of two important tearing mode stability parameters (Δ'and wc) is
improved by employing two-dimensional (2D) ECE imaging data which help one to …

Validation of the 'full reconnection model'of the sawtooth instability in KSTAR

YB Nam, JS Ko, GH Choe, Y Bae, MJ Choi… - Nuclear …, 2018 - iopscience.iop.org
The central safety factor (q 0) during sawtooth oscillation has been measured with a great
accuracy with the motional Stark effect (MSE) system on KSTAR and the measured value …

2D/3D electron temperature fluctuations near explosive MHD instabilities accompanied by minor and major disruptions

MJ Choi, HK Park, GS Yun, W Lee, NC Luhmann… - Nuclear …, 2016 - iopscience.iop.org
Minor and major disruptions by explosive MHD instabilities were observed with the novel
quasi 3D electron cyclotron emission imaging (ECEI) system in the KSTAR plasma. The fine …

Toroidal mode number transition of the edge localized modes in the KSTAR plasmas

JE Lee, GS Yun, M Kim, J Lee, W Lee, HK Park… - Nuclear …, 2015 - iopscience.iop.org
Rapid transitions of the toroidal mode number ($ n $) have been often detected during the
evolution of the edge localized modes (ELMs) in the inter-ELM-crash periods of the KSTAR …

Comparison of measured 2D ELMs with synthetic images from BOUT++ simulation in KSTAR

M Kim, MJ Choi, J Lee, GS Yun, W Lee, HK Park… - Nuclear …, 2014 - iopscience.iop.org
A detailed study of edge-localized mode (ELM) dynamics in the KSTAR tokamak is
performed using a two-dimensional (2D) electron cyclotron emission imaging (ECEI) …