Results 31 to 40 of about 52,799 (163)

Tailoring resonant magnetic perturbation to optimize fast-ion confinement during ELM control in KSTAR

Nuclear Fusion, 2023
3D resonant magnetic perturbation (RMP) is one promising way to control edge localized modes that can cause excessive material erosion of tokamak first walls.
S.M. Yang, J.-K. Park, H.S. Kim, M. Podesta, J.S. Kang, T. Rhee   +5 more
doaj   +1 more source

Effects of edge-localized electron cyclotron current drive on edge-localized mode suppression by resonant magnetic perturbations in DIII-D

Nuclear Fusion
According to recent DIII-D experiments (Logan et al 2024 Nucl. Fusion 64 014003), injecting edge localized electron cyclotron current drive (ECCD) in the counter-plasma-current (counter- I _p ) direction reduces the n = 3 resonant magnetic perturbation ...
Q.M. Hu, N.C. Logan, Q. Yu, A. Bortolon
doaj   +1 more source

Nonlinear localized gap modes in width-modulated Fibonacci lattices

Results in Physics, 2022
We address the properties of nonlinear localized gap modes supported by the width-modulated Fibonacci lattices, including their existence and stability. Linear system with the width-modulated Fibonacci lattices has multiple gaps. We find the existence of
Weiwei Su, Zhiyu Lin, Chunyan Li, Changming Huang   +3 more
doaj   +1 more source

Topological Corner Modes in Graphene-Coated Nanowire Waveguide

Applied Sciences, 2020
We study the plasmonic second-order topological modes in nanowire waveguides which are covered by monolayer graphene. The waveguide arrays are arranged in the kagome lattice. In a triangle-shaped lattice, the topological modes are localized at the corner
Ningliang Liu, Chizhu Ding, Qing Liao, Shaolin Ke   +3 more
doaj   +1 more source

The effect of the plasma response on peeling–ballooning modes during edge localized modes mitigated by resonant magnetic perturbations

Nuclear Fusion, 2023
The effects of resonant magnetic perturbation (RMP) fields on peeling–ballooning (P–B) modes are studied with the experimental equilibria of EAST based on the four-field model in BOUT++ code.
L.K. Dong, S.Y. Chen, M.L. Mou, Y. Luo, C.C. Qin, C.J. Tang   +5 more
doaj   +1 more source

Nonlinear modeling of ELM mitigation with RMP on HL-2A

Nuclear Fusion
Nonlinear modeling of mitigation of the edge localized mode (ELM) with resonant magnetic perturbation (RMP) is performed for the HL-2A tokamak, utilizing the three-dimensional (3D) magnetohydrodynamic code JOREK.
L. Wang, G.Z. Hao, M. Becoulet, Y.Q. Liu, Y.H. Xu, J.Q. Li, P.F. Zheng, D. Hu, S.L. Hu, G.Q. Dong, S. Wang, X.X. He, T.F. Sun, G.T.A. Huijsmans, W.L. Zhong, the JOREK Team   +15 more
doaj   +1 more source

Advanced operation modes relying on core plasma turbulence stabilization in tokamak fusion devices

AAPPS Bulletin, 2023
Recent progress of advanced operation modes in tokamaks is addressed focusing upon internal transport barrier (ITB) discharges. These ITB discharges are being considered as one of candidate operation modes in fusion reactors.
Yong-Su Na
doaj   +1 more source

Nonlinear edge-localized mode with impurity seeding in CFETR hybrid scenario

Nuclear Fusion
A critical challenge for operating fusion burning plasma in high-confinement mode lies in mitigating damage caused by edge-localized modes (ELMs).
Shiyong Zeng, Ping Zhu
doaj   +1 more source

Spatiotemporal structure of edge harmonic oscillation and its role in ELM-free QH-mode at KSTAR

Nuclear Fusion
In Quiescent H-mode (QH-mode), edge-localized modes (ELMs) are naturally replaced by a low- $n$ edge harmonic oscillation (EHO), yet the self-regulating transport mechanism driven by the EHO remains insufficiently understood.
Jaehyun Lee, SangKyeun Kim, Young-Mu Jeon, Minwoo Kim, Dong-Kwon Kim, Gunsu S. Yun   +5 more
doaj   +1 more source

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

Nuclear Fusion, 2023
This paper deals with one of the origins and trigger mechanisms responsible for the observed performance enhancements in the hybrid scenario experiments conducted in Korea Superconducting Tokamak Advanced Research (KSTAR).
Youngho Lee, S.K. Kim, J.W. Kim, B. Kim, M.S. Park, J.M. Kwon, M.J. Choi, S.H. Hahn, M.W. Lee, S.M. Yang, S.C. Hong, C.Y. Lee, S.J. Park, C.S. Byun, H.-S. Kim, J. Chung, Yong-Su Na   +16 more
doaj   +1 more source