Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability

doi:10.1016/j.physleta.2016.06.027

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	Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability
	Zheng, Linjin 1; Horton, W.1; Miura, H.2; Shi, T. H.3; Wang, H. Q.3
刊名	PHYSICS LETTERS A
	2016-08-06
卷号	380 期号:34 页码:2654-2657
关键词	Tokamak Stability Mhd H-mode
DOI	10.1016/j.physleta.2016.06.027
文献子类	Article
英文摘要	Owing to the large ion orbits, excessive electrons can accumulate at tokamak edge. We find that the nonneutralized electrons at tokamak edge can contribute an electric compressive stress in the direction parallel to magnetic field by their mutual repulsive force. By extending the Chew-Goldburger-low theory (Chew et al., 1956 [13]), it is shown that this newly recognized compressive stress can significantly change the plasma average magnetic well, so that a stabilization of magnetohydrodynamic modes in the pedestal can result. This linear stability regime helps to explain why in certain parameter regimes the tokamak high confinement can be rather quiet as observed experimentally. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	L-H TRANSITION ; POLOIDAL ROTATION ; MODES ; BIFURCATION ; BETA
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000380078200012
资助机构	Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742) ; Department of Energy(DE-FG02-04ER54742)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/30848]
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.Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA 2.Natl Inst Nat Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan 3.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Linjin,Horton, W.,Miura, H.,et al. Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability[J]. PHYSICS LETTERS A,2016,380(34):2654-2657.
APA	Zheng, Linjin,Horton, W.,Miura, H.,Shi, T. H.,&Wang, H. Q..(2016).Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability.PHYSICS LETTERS A,380(34),2654-2657.
MLA	Zheng, Linjin,et al."Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability".PHYSICS LETTERS A 380.34(2016):2654-2657.