Magnetic field topology modeling under resonant magnetic perturbations on EAST  

作　　者：Jie HUANG Yasuhiro SUZUKI Yunfeng LIANG Manni JIA Youwen SUN Nan CHU Jichan XU Muquan WU 黄杰;铃木康浩;梁云峰;贾曼妮;孙有文;楚南;许吉禅;吴木泉;EAST team(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China;University of Science and Technology of China, Hefei 230026, People's Republic of China;National Institutes of Fusion Sciences, National Institutes of Natural Sciences, Oroshi-cho, 322-6, Toki 509-5292, Japan;SOKENDAI, The Graduate University for Advanced Studies, Oroshi-cho, 322-6, Toki 509-5292, Japan;Institute for Energy and Climate Reserch-Plasma Physics, Forschungszentrum Juelich, Association EURATOM-FZJ, Trilateral Euregio Cluster, D-52425, Juelich, Germany)

机构地区：[1]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China [2]University of Science and Technology of China, Hefei 230026, People's Republic of China [3]National Institutes of Fusion Sciences, National Institutes of Natural Sciences, Oroshi-cho, 322-6, Toki 509-5292, Japan [4]SOKENDAI, The Graduate University for Advanced Studies, Oroshi-cho, 322-6, Toki 509-5292, Japan [5]Institute for Energy and Climate Reserch-Plasma Physics, Forschungszentrum Juelich, Association EURATOM-FZJ, Trilateral Euregio Cluster, D-52425, Juelich, Germany

出　　处：《Plasma Science and Technology》2019年第6期98-105,共8页等离子体科学和技术（英文版）

基　　金：National Key R&D Program of China (No. 2017YFE0301100);National Natural Science Foundation of China (No. 51828101);the KC Wong Educa-tion Foundation;the China Scholarship Council;the NIFS (National Institute for Fusion Science) Collaborative Research Program (NIFS16KNTT042);JSPS (the Japan Society for the Promotion of Science) Grant-in-aid for Sci-entific Research (B) 18H01202.

摘　　要：In order to understand the mechanism by which the resonant magnetic perturbation (RMP)mitigates or suppresses the edge-localized mode (ELM),the topological study of the edge magnetic field in ELM mitigation or suppression phase is a critical issue.To model the three-dimensional magnetic field topology superposed RMP on Experimental Advanced Superconducting Tokamak,a numerical model using the field line tracing method for both vacuum and ideal plasma response approximations is proposed.Using the numerical model,the topological change and the penetration depth of the stochastic field lines in the edge magnetic field are studied in an RMP experiment.Comparing profiles of minimum9 on edge stochastic field lines and the particle flux pattem,the ideal plasma response changes the field line penetration depth while remaining similar profile relative to vacuum approximation.To mitigate and suppress ELM strongly,the deep penetration of RMP fields and topological changes of the edge magnetic field is a key from our modeling.

关 键 词：MAGNETIC topology IDEAL plasma response TOKAMAKS RESONANT MAGNETIC PERTURBATION 

分 类 号：TL[核科学技术]