Electron thermal internal transport barriers triggered by the effect of ion shielding

doi:10.1088/1741-4326/ac9c18

	Electron thermal internal transport barriers triggered by the effect of ion shielding
	Ye, Lei 1; Luo, Zhengping 1; Xiao, Xiaotao 1; Pan, Chengkang 1; Wang, Yuehang 1; Huang, Yao 1; Zang, Qing 1; Chen, Fei 1; Jin, Yifei 1; Wang, Shouxin 1
刊名	NUCLEAR FUSION
	2022-12-01
卷号	62
关键词	ETG turbulence transport TEM electron transport barrier
ISSN号	0029-5515
DOI	10.1088/1741-4326/ac9c18
通讯作者	Xiao, Bingjia(bjxiao@ipp.ac.cn) ; Wang, Shaojie(wangsj@ustc.edu.cn)
英文摘要	The formation of electron thermal internal transport barriers (eITBs) is investigated by critical gradient threshold analysis for recent EAST experiments with dominant RF heating and low torque injection. The ratio of electron temperature to ion temperature, tau = T (e)/T (i), is identified to be the key parameter that triggers eITB in the hot electron mode through electron turbulence suppression by the effect of ion shielding. The critical gradient of electron-temperature-gradient turbulence can be greatly increased with tau due to strong electron heating and weak electron-ion energy coupling. The formation and evolution of eITB is found to be determined by the critical temperature gradient of electron turbulence.
资助项目	National MCF Energy R&D Program of China ; National Natural Science Foundation of China ; [2018YFE0302100] ; [2019YFE03060000] ; [2019YFE03040004] ; [11875254] ; [12075240]
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000885593900001
资助机构	National MCF Energy R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130347]
专题	中国科学院合肥物质科学研究院
通讯作者	Xiao, Bingjia; Wang, Shaojie
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Ye, Lei,Luo, Zhengping,Xiao, Xiaotao,et al. Electron thermal internal transport barriers triggered by the effect of ion shielding[J]. NUCLEAR FUSION,2022,62.
APA	Ye, Lei.,Luo, Zhengping.,Xiao, Xiaotao.,Pan, Chengkang.,Wang, Yuehang.,...&Wang, Shaojie.(2022).Electron thermal internal transport barriers triggered by the effect of ion shielding.NUCLEAR FUSION,62.
MLA	Ye, Lei,et al."Electron thermal internal transport barriers triggered by the effect of ion shielding".NUCLEAR FUSION 62(2022).