利用边缘局部磁扰动抑制 EAST 中 ITER 基准方案的边缘局部模态

arXiv - PHYS - Plasma Physics Pub Date : 2024-08-06 DOI:arxiv-2408.03272

P. Xie, Y. Sun, M. Jia, A. Loarte, Y. Q. Liu, C. Ye, S. Gu, H. Sheng, Y. Liang, Q. Ma, H. Yang, C. A. Paz-Soldan, G. Deng, S. Fu, G. Chen, K. He, T. Jia, D. Lu, B. Lv, J. Qian, H. H. Wang, S. Wang, D. Weisberg, X. Wu, W. Xu, X. Yan, Y. Yu, Q. Zang, L. Zeng, T. Zhang, C. Zhou, Z. Zhou, B. Wan, the EAST Team

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引用次数: 0

摘要

我们报告了在ITER基线条件下使用$n = 4$共振磁扰动（RMPs）抑制EASTtokamak中的I型边缘局部模（ELMs），同时保持能量约束的情况。实现RMP-ELM抑制要求目标等离子体中的归一化等离子体β（$\beta_N$）超过1.8，q_{95}\approx 3.1$和钨分流器。准线性建模显示，高等离子体β能增强RMP驱动的新古典环形粘滞力矩，降低场穿透阈值。这些发现证明了在热核实验堆中使用高 n$ RMP 抑制 ELM 的可行性和效率。

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

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 ($\beta_N$) exceeding 1.8 in a target plasma with $q_{95}\approx 3.1$ 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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arXiv - PHYS - Plasma Physics

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