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  4. 中科院等离子体物理研究所
In-out asymmetry of divertor particle flux in H-mode with edge localized modes on EAST

文献类型：期刊论文

作者Liu, J. B.1; Guo, H. Y.1,2; Wang, L.1,3; Xu, G. S.1; Xia, T. Y.1; Liu, S. C.1; Xu, X. Q.4; Li, Jie1; Chen, L.1; Yan, N.1
刊名NUCLEAR FUSION
出版日期2016-06-01
卷号56期号:6页码:066006
关键词East Divertor Asymmetry Edge Localized Modes (Elms) Drifts And Transport
DOI10.1088/0029-5515/56/6/066006
文献子类Article
英文摘要The in-out divertor asymmetry in the Experimental Advanced Superconducting Tokamak (EAST), as manifested by particle fluxes measured by the divertor triple Langmuir probe arrays, is significantly enhanced during type-I edge localized modes (ELMs), favoring the inner divertor in lower single null (LSN) for the normal toroidal field (B-t) direction, i.e. with the ion B x del B direction towards the lower X-point, while the in-out asymmetry is reversed when the ion B x del B is directed away from the lower X-point. The plasma flow measured by the Mach probe at the outer midplane is in the ion Pfirsch-Schluter (PS) flow direction, opposite to both B x del B and E x B drifts, i.e. towards the inner divertor for normal Bt, and the outer divertor for reverse Bt, consistent with the observed in-out divertor asymmetry in particle fluxes. Since the particle source from an ELM event is predominantly located near the outer midplane, this new finding suggests a critical role of the PS flow in driving the in-out divertor asymmetry. The divertor asymmetry during type-III ELMs exhibits a similar trend to that during type-I ELMs. Strong in-out divertor asymmetry is also present during inter-ELM and ELM-free phases for the normal field direction, i.e. with more particle flux to the lower inner divertor target, but the peak particle flux merely becomes more symmetric, or slightly reversed, for reverse B-t, i.e. reversed B x del B drift direction.
WOS关键词SCRAPE-OFF-LAYER ; SOL PLASMA-FLOW ; ASDEX-UPGRADE ; FIELD REVERSAL ; DIII-D ; JET ; TRANSPORT ; TOKAMAK ; JT-60U ; HEAT
WOS研究方向Physics
语种英语
WOS记录号WOS:000376446000010
资助机构National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; National Magnetic Confinement Fusion Science Program of China(2013GB107003 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21797]  
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.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
2.Gen Atom Co, POB 85608, San Diego, CA 92186 USA
3.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
4.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
推荐引用方式
GB/T 7714		 Liu, J. B.,Guo, H. Y.,Wang, L.,et al. In-out asymmetry of divertor particle flux in H-mode with edge localized modes on EAST[J]. NUCLEAR FUSION,2016,56(6):066006.
APA Liu, J. B..,Guo, H. Y..,Wang, L..,Xu, G. S..,Xia, T. Y..,...&EAST Probe Team.(2016).In-out asymmetry of divertor particle flux in H-mode with edge localized modes on EAST.NUCLEAR FUSION,56(6),066006.
MLA Liu, J. B.,et al."In-out asymmetry of divertor particle flux in H-mode with edge localized modes on EAST".NUCLEAR FUSION 56.6(2016):066006.

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来源：合肥物质科学研究院

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