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Experimental results of H-mode power threshold with lower hybrid wave heating on the EAST tokamak
Huang, Canbin1; Gao, Xiang1,2; Liu, Zixi2; Han, Xiang2; Zhang, Tao2; Wang, Yumin2; Zang, Shoubiao2; Kong, Defeng2; EAST Team
2016-07-01
发表期刊PLASMA PHYSICS AND CONTROLLED FUSION
摘要The density roll-over dependence on H-mode power threshold is observed on EAST for the first time. In campaign 2014 and 2015 shots with a toroidal field of 2.25 T have observed rollover dependence with lower hybrid wave as the only auxiliary heating method, while shots with a toroidal field of 1.79 T and 1.9 T exhibit linear dependence consistent with scaling law. The density of minimum power for accessing H-mode on EAST has different plasma current values of 400 kA and 500 kA, and is better described in the normalized Greenwald fraction (n) over cap /n(G) approximate to 0.4 at B-T = 2.35 T. The absence of (n) over cap (e,min) in 1.7 T and 1.8 T may be attributed to the positive dependence with toroidal field. Besides, correlation analysis of H-mode power threshold and divertor geometry in scanning X-point is summarized and compared. Outer leg length (distance from X-point to outer strike point) has the highest correlation coefficient with H-mode power threshold, which explains the data scattering within the same plasma parameters. A new equation of scaling law is proposed: P-th_EAST = 4.27OLL(1.4) x P-th_08 Neutral particles are believed to be the hidden factor in different divertor geometry, and play a negative role in L-H transition via charge exchange damping.
文章类型Article
关键词Lhw Power Threshold Density Roll-over Divertor Geometry Neutral Density
WOS标题词Science & Technology ; Physical Sciences
DOI10.1088/0741-3335/58/7/075005
关键词[WOS]TRANSITION THRESHOLD ; NEUTRALS
收录类别SCI
语种英语
项目资助者National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Magnetic Confinement Fusion Program of China(2014GB106000 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; National Natural Science Foundation of China(11275234 ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; Scientific Research Grant of Hefei Science Center of CAS(2015SRG-HSC010) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 2014GB106003) ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305215 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11305208 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405217 ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214) ; 11405214)
WOS研究方向Physics
WOS类目Physics, Fluids & Plasmas ; Physics, Nuclear
WOS记录号WOS:000378616300015
引用统计
被引频次：5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/21763
专题中科院等离子体物理研究所
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Canbin,Gao, Xiang,Liu, Zixi,et al. Experimental results of H-mode power threshold with lower hybrid wave heating on the EAST tokamak[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2016,58(7):075005.
APA Huang, Canbin.,Gao, Xiang.,Liu, Zixi.,Han, Xiang.,Zhang, Tao.,...&EAST Team.(2016).Experimental results of H-mode power threshold with lower hybrid wave heating on the EAST tokamak.PLASMA PHYSICS AND CONTROLLED FUSION,58(7),075005.
MLA Huang, Canbin,et al."Experimental results of H-mode power threshold with lower hybrid wave heating on the EAST tokamak".PLASMA PHYSICS AND CONTROLLED FUSION 58.7(2016):075005.
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