Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer

	Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer
	Liu Hai 2; Chen Zhipeng 2; Zhuang Ge 2; Sun Yue 2; Zhu Lizhi 2; Xiao Chijin 3; Chen Jie 2
刊名	Plasma Science & Technology
	2016
卷号	18
关键词	retarding field analyzer ion energy transport e-folding length magnetic connection length poloidal asymmetry
ISSN号	1009-0630
其他题名	Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer
英文摘要	Radial profiles of the ion temperature, T_i, have been measured by a double-sided retarding field analyzer (RFA) in the scrape-off layer (SOL) of the J-TEXT tokamak (R = 105 cm, r= 25-29 cm, B_t =1.8-2.0 T, I_p = 120 -180 kA, n_e = (2-2.5) × 10~(19) m~(-3)). Strongly declining T_i profiles in the SOL have been found. The different e-folding lengths, λ_T, of the T_i profiles in two experimental configurations with different magnetic connection lengths, L_c, reveal that a longer L_c results in weaker parallel energy transport and longer λ_T. In similarity with the particle transport across the SOL, λ_T is approximately proportional to the square root of L_c. Additionally, the poloidal asymmetry has been identified with enhanced ion energy transport across the SOL on the low-field side.
语种	英语
CSCD记录号	CSCD:5721921
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/101741]
专题	中国科学院合肥物质科学研究院
作者单位	1.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology 2.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology 3.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology 4.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology 5.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology 6.Institute of Plasma Physics, Chinese Academy of Sciences 7.Institute of Fusion and Plasma Research, School of Electrical & Electronic Engineering, Huazhong University of Science and Technology
推荐引用方式 GB/T 7714	Liu Hai,Chen Zhipeng,Zhuang Ge,et al. Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer[J]. Plasma Science & Technology,2016,18.
APA	Liu Hai.,Chen Zhipeng.,Zhuang Ge.,Sun Yue.,Zhu Lizhi.,...&Chen Jie.(2016).Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer.Plasma Science & Technology,18.
MLA	Liu Hai,et al."Investigation of the Ion Energy Transport in the Scrape-O? Layer on the J-TEXT Tokamak Using a Retarding Field Analyzer".Plasma Science & Technology 18(2016).