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 …

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 …

Overview and recent progress of KSTAR diagnostics

SG Lee, YU Nam, JG Bak, JW Juhn… - Journal of …, 2022 - iopscience.iop.org
The 14 th experimental campaign from the Korea Superconducting Tokamak Advanced
Research (KSTAR) device has passed since the first experimental campaign was carried out …

Bifurcation-like transition of divertor conditions induced by X-point radiation in KSTAR L-mode plasmas

JS Park, R Pitts, J Jang, YS Han, W Choe, J Lore… - Nuclear …, 2023 - iopscience.iop.org
Density ramps with ion grad B drift directed into lower single null KSTAR L-mode plasmas
are associated with a simultaneous and abrupt reduction of the divertor particle flux on both …

Observation of electron driven quasi-coherent modes and their connection with core intrinsic rotation in KSTAR ECH and ohmic L-mode plasmas

JA Lee, W Lee, JM Kwon, SH Ko, J Leem, GS Yun… - Physics of …, 2018 - pubs.aip.org
Quasi-coherent (QC) modes, known as a type of the trapped electron mode (TEM)
turbulence, have been measured in the outboard core region of low-density electron …

Pedestal electron collisionality and toroidal rotation during ELM-crash suppression phase under n= 1 RMP in KSTAR

M Kim, J Lee, WH Ko, SH Hahn, Y In, YM Jeon… - Physics of …, 2020 - pubs.aip.org
Excellent reproducibility of KSTAR resonant magnetic perturbation (RMP)-driven, edge-
localized mode (ELM)-crash suppression enables us to construct a database reliably for the …

Confinement and ELM characteristics of H-mode plasmas in KSTAR

JW Ahn, HS Kim, YS Park, L Terzolo, WH Ko… - Nuclear …, 2012 - iopscience.iop.org
The latest results of confinement and edge-localized mode (ELM) characteristics of Korea
Superconducting Tokamak Advanced Research (KSTAR) H-mode plasmas are reported …

Sustainable internal transport barrier discharge at KSTAR

J Chung, SH Hahn, H Han, J Kang, HS Kim… - Nuclear …, 2021 - iopscience.iop.org
We explore the inboard-limited internal transport barrier (ITB) as an alternative advanced
operation scenario for KSTAR. This paper presents in detail the progress of the ITB …

Design, development, and operation of seven channels' 100-GHz interferometer for plasma density measurement

PK Atrey, D Pujara, S Mukherjee… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
A seven-channel microwave interferometer (100 GHz) is designed, developed, and used to
measure the radial profile of the plasma density (ne) in Aditya tokamak. The resolution of the …

The design of two color interferometer system for the 3-dimensional analysis of plasma density evolution on KSTAR

KC Lee, JW Juhn, YU Nam, YS Kim, HM Wi… - Fusion Engineering and …, 2016 - Elsevier
A 5-channel two color interferometer (TCI) system has been designed on KSTAR. TCI
system is designed for tangential beam paths, which will combine with two existing …