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 …

Overview of KSTAR research progress and future plans toward ITER and K-DEMO

HK Park, MJ Choi, SH Hong, Y In, YM Jeon… - Nuclear …, 2019 - iopscience.iop.org
A decade-long operation of the Korean Superconducting Tokamak Advanced Research
(KSTAR) has contributed significantly to the operation of superconducting tokamak devices …

Boosting magnetic resonance imaging signal-to-noise ratio using magnetic metamaterials

G Duan, X Zhao, SW Anderson, X Zhang - Communications physics, 2019 - nature.com
Magnetic resonance imaging (MRI) represents a mainstay among the diagnostic imaging
tools in modern healthcare. Signal-to-noise ratio (SNR) represents a fundamental …

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 …

[HTML][HTML] The density dependence of edge-localized-mode suppression and pump-out by resonant magnetic perturbations in the DIII-D tokamak

QM Hu, R Nazikian, BA Grierson, NC Logan… - Physics of …, 2019 - pubs.aip.org
The density dependence of edge-localized-mode (ELM) suppression and density pump-out
(density reduction) by n= 2 resonant magnetic perturbations (RMPs) is consistent with 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 …

Observation of magnetic islands in tokamak plasmas during the suppression of edge-localized modes

M Willensdorfer, V Mitterauer, M Hoelzl, W Suttrop… - Nature Physics, 2024 - nature.com
In tokamaks, a leading platform for fusion energy, periodic filamentary plasma eruptions
known as edge-localized modes occur in plasmas with high-energy confinement and steep …

Wide operational windows of edge-localized mode suppression by resonant magnetic perturbations in the DIII-D tokamak

QM Hu, R Nazikian, BA Grierson, NC Logan… - Physical Review Letters, 2020 - APS
Edge-localized mode (ELM) suppression by resonant magnetic perturbations (RMPs)
generally occurs over very narrow ranges of the plasma current (or magnetic safety factor q …

The role of edge resonant magnetic perturbations in edge-localized-mode suppression and density pump-out in low-collisionality DIII-D plasmas

QM Hu, R Nazikian, BA Grierson, NC Logan… - Nuclear …, 2020 - iopscience.iop.org
Two-fluid nonlinear MHD simulations using the TM1 code demonstrate that the formation of
magnetic islands at the top and bottom of the H-mode pedestal, together with the strong …

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 …