Nonneutralized charge effects on tokamak edge magnetohydrodynamic stability | |
Zheng, Linjin1; Horton, W.1; Miura, H.2; Shi, T. H.3; Wang, H. Q.3 | |
刊名 | PHYSICS LETTERS A
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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. |
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