Suppression of Edge Localized Modes in ITER Baseline Scenario in EAST using Edge Localized Magnetic Perturbations

2024/08/06 by Peng Xie, Xie, P., Yazhou Sun +64
Engineering · Physics and Astronomy · #FOS: Physical sciences #Ionosphere and magnetosphere dynamics #Magnetic confinement fusion research #Plasma Physics (physics.plasm-ph) #Superconducting Materials and Applications

paper · pdf · doi:10.48550/arxiv.2408.03272

openalex publication_date 2024/08/06 · openalex created_date 2024/10/22 · openalex updated_date 2026/07/28

Abstract

We report the suppression of Type-I Edge Localized Modes (ELMs) in the EAST tokamak under ITER baseline conditions using n = 4 Resonant Magnetic Perturbations (RMPs), while maintaining energy confinement. Achieving RMP-ELM suppression requires a normalized plasma beta (β_N) exceeding 1.8 in a target plasma with q₉₅≈ 3.1 and tungsten divertors. Quasi-linear modeling shows high plasma beta enhances RMP-driven neoclassical toroidal viscosity torque, reducing field penetration thresholds. These findings demonstrate the feasibility and efficiency of high n RMPs for ELM suppression in ITER.

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