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Inter-ELM evolution of the pedestal structures in type-I ELMy H-mode plasmas with LHW and NBI heating on EAST

文献类型：期刊论文

作者Han, X.1; Zang, Q.1; Xiao, S.1; Wang, T.1; Hu, A.1; Tian, B.1; Li, D.1; Zhou, H.1; Zhao, J.1; Hsieh, C.2
刊名PLASMA PHYSICS AND CONTROLLED FUSION
出版日期2017-04-01
卷号59期号:4页码:1-8
关键词Pedestal Structure Plasma Global Parameter East Tokamak Thomson Scattering Diagnostic
DOI10.1088/1361-6587/aa5c95
文献子类Article
英文摘要The evolution characteristics of type-I ELMy high-confinement mode pedestal are examined in EAST based on the recently developed Thomson scattering system. The influence of the plasma current on pedestal evolvement has been confirmed experimentally. In the higher I-p case (500 kA) the pedestal height shows an increase trend until the onset of next ELM and in the lower I-p cases (300 and 400 kA), however, this buildup saturates at the first similar to 30% of the ELM cycle. In contrast, the width increases only during the first similar to 70% of the ELM cycle and then keeps almost stable in three I-p cases, but resulting in different widening size of similar to 1.5, 1 and 0.5 cm for 300, 400 and 500 kA respectively. Experimental results show that the pedestal pressure width has good correlation with poloidal beta as Delta(pe,psi) = 0.16 root beta(pol), where the fitting coefficient 0.16 is not changed with different plasma currents but a little larger than that of other machines. For each current level, the pedestal density increases while the pedestal temperature decreases. But with increasing I-p platforms, the pedestal height prior to the ELM onset shows a near quadratic (within error bars) increase. Experimental measurements demonstrate that the decrease of Delta W-ELM with increasing nu(ped)* comes mostly from the reduction of the plasma temperature drop, while the pedestal density height keeps relatively stable. Additional injection of LHW has been proved to modify the pedestal structure which should be responsible for the remaining scatter of the experimental data.
WOS关键词EDGE LOCALIZED MODES ; DIII-D TOKAMAK ; IMPROVED CONFINEMENT ; TRANSPORT BARRIERS ; PARTICLE LOSSES ; ITER DIVERTOR ; ENERGY ; POWER ; DEPOSITION ; DEVICES
WOS研究方向Physics
语种英语
WOS记录号WOS:000395886900001
资助机构National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Natural Science Foundation of China(11405206 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; National Magnetic Confinement Fusion Science Program of China(2013GB112003 ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; Science Foundation of Institute of Plasma Physics, CAS, China(DSJJ15-JC01) ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 11422546 ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 2015GB101000) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31819]  
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, San Diego, CA USA
推荐引用方式
GB/T 7714		 Han, X.,Zang, Q.,Xiao, S.,et al. Inter-ELM evolution of the pedestal structures in type-I ELMy H-mode plasmas with LHW and NBI heating on EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2017,59(4):1-8.
APA Han, X..,Zang, Q..,Xiao, S..,Wang, T..,Hu, A..,...&EAST Team.(2017).Inter-ELM evolution of the pedestal structures in type-I ELMy H-mode plasmas with LHW and NBI heating on EAST.PLASMA PHYSICS AND CONTROLLED FUSION,59(4),1-8.
MLA Han, X.,et al."Inter-ELM evolution of the pedestal structures in type-I ELMy H-mode plasmas with LHW and NBI heating on EAST".PLASMA PHYSICS AND CONTROLLED FUSION 59.4(2017):1-8.

入库方式： OAI收割

来源：合肥物质科学研究院

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