中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Transport barriers in bootstrap-driven tokamaks

文献类型:期刊论文

作者Staebler, G. M.1; Garofalo, A. M.1; Pan, C.2; McClenaghan, J.1; Van Zeeland, M. A.1; Lao, L. L.1
刊名PHYSICS OF PLASMAS
出版日期2018-05-01
卷号25期号:5页码:11
ISSN号1070-664X
DOI10.1063/1.5019282
通讯作者Staebler, G. M.(Gary.Staebler@gat.com)
英文摘要Experiments have demonstrated improved energy confinement due to the spontaneous formation of an internal transport barrier in high bootstrap fraction discharges. Gyrokinetic analysis, and quasilinear predictive modeling, demonstrates that the observed transport barrier is caused by the suppression of turbulence primarily from the large Shafranov shift. It is shown that the Shafranov shift can produce a bifurcation to improved confinement in regions of positive magnetic shear or a continuous reduction in transport for weak or negative magnetic shear. Operation at high safety factor lowers the pressure gradient threshold for the Shafranov shift-driven barrier formation. Two self-organized states of the internal and edge transport barrier are observed. It is shown that these two states are controlled by the interaction of the bootstrap current with magnetic shear, and the kinetic ballooning mode instability boundary. Election scale energy transport is predicted to be dominant in the inner 60% of the profile. Evidence is presented that energetic particle-driven instabilities could be playing a role in the thermal energy transport in this region. Published by AIP Publishing.
WOS关键词FLUID EQUATIONS ; DIII-D ; PLASMAS ; SOLVER ; SHEAR
资助项目U.S. Department of Energy[DE-FG02-95ER54309] ; U.S. Department of Energy[DE-FC02-04ER54698] ; United States Government
WOS研究方向Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000433961800134
资助机构U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; United States Government ; United States Government ; United States Government ; United States Government ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38179]  
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Staebler, G. M.
作者单位1.Gen Atom, POB 85608, San Diego, CA 92168 USA
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Staebler, G. M.,Garofalo, A. M.,Pan, C.,et al. Transport barriers in bootstrap-driven tokamaks[J]. PHYSICS OF PLASMAS,2018,25(5):11.
APA Staebler, G. M.,Garofalo, A. M.,Pan, C.,McClenaghan, J.,Van Zeeland, M. A.,&Lao, L. L..(2018).Transport barriers in bootstrap-driven tokamaks.PHYSICS OF PLASMAS,25(5),11.
MLA Staebler, G. M.,et al."Transport barriers in bootstrap-driven tokamaks".PHYSICS OF PLASMAS 25.5(2018):11.

入库方式: OAI收割

来源:合肥物质科学研究院

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