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
{"title":"Suppression of Edge Localized Modes in ITER Baseline Scenario in EAST using Edge Localized Magnetic Perturbations","authors":"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","doi":"arxiv-2408.03272","DOIUrl":null,"url":null,"abstract":"We report the suppression of Type-I Edge Localized Modes (ELMs) in the EAST\ntokamak under ITER baseline conditions using $n = 4$ Resonant Magnetic\nPerturbations (RMPs), while maintaining energy confinement. Achieving RMP-ELM\nsuppression requires a normalized plasma beta ($\\beta_N$) exceeding 1.8 in a\ntarget plasma with $q_{95}\\approx 3.1$ and tungsten divertors. Quasi-linear\nmodeling shows high plasma beta enhances RMP-driven neoclassical toroidal\nviscosity torque, reducing field penetration thresholds. These findings\ndemonstrate the feasibility and efficiency of high $n$ RMPs for ELM suppression\nin ITER.","PeriodicalId":501274,"journal":{"name":"arXiv - PHYS - Plasma Physics","volume":"99 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Plasma Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2408.03272","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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 ($\beta_N$) 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.