Edge turbulence characteristics and transport during the ELM mitigation withn=1 resonant magnetic perturbation on EAST | |
Liu, S. C.1,3; Yan, N.1; Liang, Y.1,3; Zhang, H.1; Xu, J. C.2; Xu, G. S.1; Wang, L.1; Chen, R.1; Hu, G. H.1; Ye, Y.1 | |
刊名 | NUCLEAR FUSION |
2020-08-01 | |
卷号 | 60 |
关键词 | resonant magnetic perturbation ELM control turbulence transport tokamak |
ISSN号 | 0029-5515 |
DOI | 10.1088/1741-4326/ab77e5 |
通讯作者 | Liu, S. C.(shaocheng.liu@ipp.ac.cn) |
英文摘要 | The edge localized mode (ELM) has been mitigated byn= 1 resonant magnetic perturbation (RMP) in EAST tokamak. The turbulence characteristics and transport during the ELM mitigation have been measured by a series of diagnostics. The edge coherent mode (ECM) with a frequency about 25 kHz almost disappears when ELM is mitigated. The scrape-off layer (SOL) radial turbulent transport is measured by a four-tip Langmuir probe mounted on the manipulator at the outer midplane, exhibiting a strong enhancement of outward particle during the ELM mitigation in the SOL region (3-25 mm outside the LCFS). This enhanced outward radial transport is mainly driven by the low frequency turbulence (< 50 kHz), and is compared with the particle flux deposited on divertor targets quantitatively, revealing a good agreement with each other. It is suggested that a new channel for particle exhaust induced by the low frequency turbulence is beneficial to maintain the ELM mitigation by RMP. |
资助项目 | National Natural Science Foundation of China[11875294] ; National Natural Science Foundation of China[11675211] ; National Natural Science Foundation of China[11605235] ; National Natural Science Foundation of China[11875292] ; National Natural Science Foundation of China[U19A20113] ; National Natural Science Foundation of China[11405213] ; National Natural Science Foundation of China[11975271] ; National Key Research & Development Program of China[2017YFE0301300] ; National Key Research & Development Program of China[2017YFA0402500] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH001] ; KC Wong Education Foundation |
WOS关键词 | PELLET INJECTION ; MODE ; SUPPRESSION |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000551750700001 |
资助机构 | National Natural Science Foundation of China ; National Key Research & Development Program of China ; Key Research Program of Frontier Sciences, CAS ; KC Wong Education Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/43382] |
专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
通讯作者 | Liu, S. C. |
作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Anhui Univ Sci & Technol, Sch Mech Engn, Huainan 232001, Peoples R China 3.Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, Partner Trilateral Euregio Cluster TEC, D-52425 Julich, Germany |
推荐引用方式 GB/T 7714 | Liu, S. C.,Yan, N.,Liang, Y.,et al. Edge turbulence characteristics and transport during the ELM mitigation withn=1 resonant magnetic perturbation on EAST[J]. NUCLEAR FUSION,2020,60. |
APA | Liu, S. C..,Yan, N..,Liang, Y..,Zhang, H..,Xu, J. C..,...&Gong, X. Z..(2020).Edge turbulence characteristics and transport during the ELM mitigation withn=1 resonant magnetic perturbation on EAST.NUCLEAR FUSION,60. |
MLA | Liu, S. C.,et al."Edge turbulence characteristics and transport during the ELM mitigation withn=1 resonant magnetic perturbation on EAST".NUCLEAR FUSION 60(2020). |
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