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Experimental observation of (intermediate, high)-k micro-turbulence in different type H mode plasmas in EAST

文献类型：期刊论文

作者Wu, G. J.; Li, Y. D.; Sun, P. J.; Li, P.; Bi, J.; Wang, S. X.; Liu, H. Q.; Zhang, X. D.; Hu, L. Q.
刊名PHYSICS OF PLASMAS
出版日期2018-08-01
卷号25期号:8页码:10
ISSN号1070-664X
DOI10.1063/1.5029516
通讯作者Sun, P. J.(sunpj@ipp.cas.cn)
英文摘要Both k(1) = 12 cm(-1) (intermediate-k) and k(2) = 22 cm(-1) (high-k) micro-turbulence (k(perpendicular to)rho(s) similar to 1-4) in gradient region plasmas were measured simultaneously by the EAST poloidal CO2 laser collective scattering system. Their behaviors have been studied in detail in both ELM-free/type III ELMy and enhanced Da (EDA) H mode plasma discharges. Compared with that in the previous L mode phase, it can be seen obviously that the mean frequency of lower-k (k(1)) micro-turbulence increases and that of higher-k (k(2)) decreases during the ELM-free or type III ELMy H mode phase, while frequencyintegrated spectral power (S-tot) of both k(1) and k(2) micro-turbulence seems almost the same. On the other hand, both S-tot and mean frequency of k(1)/k(2) micro-turbulence show continuous increase during the EDA H mode phase. These results imply that the response of (intermediate, high)-k microturbulence on different type H mode is different. Further cross-correlation analysis between k(1) and k(2) micro-turbulence shows that their cross-correlation value is a little lower in H mode phase than the previous L mode phase. It can also be found that the cross-correlation value decreases gradually during the ELM-free and subsequent type-III ELMy phases, and it is almost zero in the EDA H mode phase. These new results could shed some light on the comprehensive understanding of mechanisms under H mode physics. Published by AIP Publishing.
WOS关键词DIII-D TOKAMAK ; ZONAL FLOWS ; TRANSITION ; TRANSPORT ; PHYSICS
资助项目National Natural Science Foundation of China[11475222] ; National Natural Science Foundation of China[11575238] ; National Natural Science Foundation of China[11505228] ; National Natural Science Foundation of China[10975159] ; National Natural Science Foundation of China[11275232] ; National Natural Science Foundation of China[11735016]
WOS研究方向Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000443730900032
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38776]  
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Sun, P. J.
作者单位Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wu, G. J.,Li, Y. D.,Sun, P. J.,et al. Experimental observation of (intermediate, high)-k micro-turbulence in different type H mode plasmas in EAST[J]. PHYSICS OF PLASMAS,2018,25(8):10.
APA Wu, G. J..,Li, Y. D..,Sun, P. J..,Li, P..,Bi, J..,...&Hu, L. Q..(2018).Experimental observation of (intermediate, high)-k micro-turbulence in different type H mode plasmas in EAST.PHYSICS OF PLASMAS,25(8),10.
MLA Wu, G. J.,et al."Experimental observation of (intermediate, high)-k micro-turbulence in different type H mode plasmas in EAST".PHYSICS OF PLASMAS 25.8(2018):10.

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来源：合肥物质科学研究院

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