A sustained high-temperature fusion plasma regime facilitated by fast ions

H Han, SJ Park, C Sung, J Kang, YH Lee, J Chung… - Nature, 2022 - nature.com
Nuclear fusion is one of the most attractive alternatives to carbon-dependent energy
sources. Harnessing energy from nuclear fusion in a large reactor scale, however, still …

3D field phase-space control in tokamak plasmas

JK Park, YM Jeon, Y In, JW Ahn, R Nazikian, G Park… - Nature Physics, 2018 - nature.com
A small relaxation of the axisymmetric magnetic field of a tokamak into a non-axisymmetric
three-dimensional (3D) configuration can be effective to control magnetohydrodynamic …

Tailoring tokamak error fields to control plasma instabilities and transport

SM Yang, JK Park, YM Jeon, NC Logan, J Lee… - Nature …, 2024 - nature.com
A tokamak relies on the axisymmetric magnetic fields to confine fusion plasmas and aims to
deliver sustainable and clean energy. However, misalignments arise inevitably in the …

Advances in physics of the magneto-hydro-dynamic and turbulence-based instabilities in toroidal plasmas via 2-D/3-D visualization

HK Park, MJ Choi, M Kim, M Kim, J Lee, D Lee… - Reviews of Modern …, 2022 - Springer
A robust theoretical framework for describing the explosive growth of the magneto-hydro-
dynamic (MHD) and turbulence-based instabilities in toroidal plasmas can only be achieved …

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 …

Edge localized mode control using n= 1 resonant magnetic perturbation in the EAST tokamak

Y Sun, M Jia, Q Zang, L Wang, Y Liang, YQ Liu… - Nuclear …, 2016 - iopscience.iop.org
A set of in-vessel resonant magnetic perturbation (RMP) coil has been recently installed in
EAST. It can generate a range of spectrum, and there is a relatively large window for edge …

Enhanced understanding of non-axisymmetric intrinsic and controlled field impacts in tokamaks

Y In, JK Park, YM Jeon, J Kim, GY Park, JW Ahn… - Nuclear …, 2017 - iopscience.iop.org
An extensive study of intrinsic and controlled non-axisymmetric field (δB) impacts in KSTAR
has enhanced the understanding about non-axisymmetric field physics and its implications …

Locked mode detection during error field identification studies

L Piron, P Buratti, M Falessi, M Gambrioli… - Fusion Engineering and …, 2023 - Elsevier
At the beginning of a machine operation, an assessment of the intrinsic error fields, spurious
magnetic field perturbations which can affect plasma dynamics, is often carried out by …

Formation of the internal transport barrier in KSTAR

J Chung, HS Kim, YM Jeon, J Kim, MJ Choi, J Ko… - Nuclear …, 2017 - iopscience.iop.org
One of key objectives of tokamak experiments is the exploration of enhanced confinement
regimes, and the access of the internal transport barrier (ITB) formation is dealt with an …

Non-disruptive error field identification based on magnetic island healing

C Paz-Soldan, Q Hu, NC Logan, JK Park - Nuclear Fusion, 2022 - iopscience.iop.org
A technique to identify intrinsic error fields (EFs) in tokamaks with minimized risk of
disruption is demonstrated on the DIII-D tokamak. The method extends the conventional …