An overview of KSTAR results

JG Kwak, YK Oh, HL Yang, KR Park, YS Kim… - Nuclear …, 2013 - iopscience.iop.org
Since the first H-mode discharges in 2010, the duration of the H-mode state has been
extended and a significantly wider operational window of plasma parameters has been …

Effect of coherent edge-localized mode on transition to high-performance hybrid scenarios in KSTAR

Y Lee, SK Kim, JW Kim, B Kim, MS Park… - Nuclear …, 2023 - iopscience.iop.org
This paper deals with one of the origins and trigger mechanisms responsible for the
observed performance enhancements in the hybrid scenario experiments conducted in …

On hybrid scenarios in KSTAR

YS Na, YH Lee, CS Byun, SK Kim, CY Lee… - Nuclear …, 2020 - iopscience.iop.org
We report the status of hybrid scenario experiments in Korea Superconducting Tokamak
Advanced Research (KSTAR). The hybrid scenario is defined as stationary discharges with …

ECH effects on toroidal rotation: KSTAR experiments, intrinsic torque modelling and gyrokinetic stability analyses

YJ Shi, WH Ko, JM Kwon, PH Diamond, SG Lee… - Nuclear …, 2013 - iopscience.iop.org
Toroidal rotation profiles have been investigated in KSTAR H-mode plasma using combined
auxiliary heating by co-neutral beam injection (NBI) and electron cyclotron resonance …

Analytical solution versus the Monte Carlo simulation for studying the H+ beam neutralization in H2 gas target neutralizer

A Masoumzadeh, M Habibi, HR Mirzaei - International Journal of Hydrogen …, 2024 - Elsevier
A comparative Study on the conversion of an energetic H+ beam inside a cell neutralizer
filled with hydrogen gas target is conducted by two different methods to determine the …

[HTML][HTML] Prompt loss of beam ions in KSTAR plasmas

JY Kim, T Rhee, J Kim, SW Yoon, BH Park, M Isobe… - AIP Advances, 2016 - pubs.aip.org
For a toroidal plasma facility to realize fusion energy, researching the transport of fast ions is
important not only due to its close relation to the heating and current drive efficiencies but …

Stress-driven surface swell and exfoliation of copper as the plasma-facing materials in NBI ICP source

Y Cui, H Fan, C Niu, W Liu, Z Zhao… - Plasma Physics and …, 2021 - iopscience.iop.org
Neutral beam injection (NBI) heating is a significant auxiliary heating method used in
Tokamak fusion devices. The material of faraday shield (FS) and accelerator grids in the NBI …

[HTML][HTML] Development of all power supplies with a new design utilized for NBI-2 system on KSTAR

JH Jeong, HS Ahn, W Cho, YS Kim - Fusion Engineering and Design, 2021 - Elsevier
The power supply for the 6 MW (2 MW× 3 sets) of the neutral beam injector (NBI-2) system is
newly developed. The rated output of 100 kV/60 A DC power supply based on the pulse step …

Design of a Two-Region Arc Plasma ion source for Cs-free H

TS Kim, SH Jeong, K Lee - Fusion Engineering and Design, 2023 - Elsevier
Abstract The Korea Atomic Energy Research Institute (KAERI) is developing a new concept
of cesium-free negative hydrogen (deuterium) ion source based on a Two-Region Arc …

Toroidal rotation profile structure in KSTAR L-mode plasmas with mixed heating by NBI and ECH

YJ Shi, SH Ko, JM Kwon, WH Ko, PH Diamond… - Nuclear …, 2015 - iopscience.iop.org
The structure of the toroidal rotation profile with mixed heating by neutral beam injection
(NBI) and electron cyclotron resonance heating (ECH) has been investigated in KSTAR L …