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Vacuum modeling of three-dimensional magnetic field topology under resonant magnetic perturbations on EAST

文献类型：期刊论文

作者Jia, M.1,2; Sun, Y.2; Zhong, F.1; Li, H.2; Li, G.2; Wang, L.2; Gan, K.2; Zhang, B.2; Qian, J.2; Shen, B.2
刊名PLASMA PHYSICS AND CONTROLLED FUSION
出版日期2016-05-01
卷号58期号:5页码:055010
关键词Resonant Magnetic Perturbation Edge Stochastic Layer Magnetic Footprint Elm Control Tokamak
DOI10.1088/0741-3335/58/5/055010
文献子类Article
英文摘要A numerical model using field line tracing for modeling of three-dimensional magnetic field topology under resonant magnetic perturbations (RMPs) on experimental advanced superconducting tokamak (EAST) is presented. The topological structure is calculated in the vacuum paradigm. The modeling result predicts that the possible strike point splitting on a plasma-facing component and the lobes-like structure on the boundary are observable in the diagnostics at different locations. It is shown that the magnetic perturbations with a resonant dominant spectrum can induce a large footprint splitting effect as well as a wide stochastic layer. This is useful for observations using diagnostics with limited spatial resolution. The impact of RMP fields on marginally disconnected double null configurations is investigated. To avoid the transient heat load on the upper divertor or plasma-facing components near the upper x-point, it is necessary to keep the distance between two separatrices of a near double null configuration larger than a threshold value that depends on the RMP strength and the equilibrium properties. A preliminary RMP experiment on EAST shows that there is a good agreement between the splitting width predicted by the code and that of the particle flux measured by divertor probes. An enhancement of particle flux on the upper divertor during the RMP phase is observed in the lower single null discharge.
WOS关键词EDGE LOCALIZED MODES ; DIII-D ; HOMOCLINIC TANGLES ; TOKAMAKS ; ITER ; PARTICLE
WOS研究方向Physics
语种英语
WOS记录号WOS:000375232300018
资助机构National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21982]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.Donghua Univ, Coll Sci, Shanghai 201620, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Jia, M.,Sun, Y.,Zhong, F.,et al. Vacuum modeling of three-dimensional magnetic field topology under resonant magnetic perturbations on EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2016,58(5):055010.
APA Jia, M..,Sun, Y..,Zhong, F..,Li, H..,Li, G..,...&Shen, B..(2016).Vacuum modeling of three-dimensional magnetic field topology under resonant magnetic perturbations on EAST.PLASMA PHYSICS AND CONTROLLED FUSION,58(5),055010.
MLA Jia, M.,et al."Vacuum modeling of three-dimensional magnetic field topology under resonant magnetic perturbations on EAST".PLASMA PHYSICS AND CONTROLLED FUSION 58.5(2016):055010.

入库方式： OAI收割

来源：合肥物质科学研究院

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