Effects of resonant magnetic perturbations on neutral beam heating in a tokamak

doi:10.1063/5.0069792

	Effects of resonant magnetic perturbations on neutral beam heating in a tokamak
	Hu, Youjun 1; Xu, Yingfeng 2; Hao, Baolong 3; Li, Guoqiang 1; He, Kaiyang 1; Sun, Youwen 1; Li, Li 2; Wang, Jinfang 1; Huang, Juan 1; Ye, Lei 1
刊名	PHYSICS OF PLASMAS
	2021-12-01
卷号	28
ISSN号	1070-664X
DOI	10.1063/5.0069792
通讯作者	Xu, Yingfeng(xuyingfeng@dhu.edu.cn)
英文摘要	The effects of resonant magnetic perturbations (RMPs) on tangential neutral beam heating in the EAST tokamak are studied numerically. RMPs with linear resistive magnetohydrodynamics response are used in the modeling. A variety of representing configurations of RMP coil currents are examined, and their effects on the neutral beam injection (NBI) heating efficiency are compared, in order to find a parameter window where deleterious effects of RMPs on NBI heating efficiency are minimized. It is found that the internal redistribution of fast ions by RMPs induces local accumulation of fast ions, resulting in higher local fast ion pressure than the case without RMPs. It is also found that the toroidal phasing of the RMP with respect to the fast ion source has slight effects on the steady-state radial profile of fast ions. The dependence of fast ion loss fraction on the RMP up-down phase difference shows a similar behavior as the dependence of the radial width of chaotic magnetic field on the phase difference. A statistical method of identifying resonances between RMPs and lost fast ions is proposed, and the results indicate that some resonances between RMPs and lost passing particles may be of non-integer fractional order, rather than the usual integer order.& nbsp;
资助项目	National Key R&D Program of China[2017YFE0300400] ; Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228] ; Excellence Program of Hefei Science Center CAS[2021HSC-UE017] ; National Natural Science Foundation of China[11575251]
WOS关键词	CODE ; ITER
WOS研究方向	Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000731435400002
资助机构	National Key R&D Program of China ; Comprehensive Research Facility for Fusion Technology Program of China ; Excellence Program of Hefei Science Center CAS ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126932]
专题	中国科学院合肥物质科学研究院
通讯作者	Xu, Yingfeng
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Donghua Univ, Coll Sci, Shanghai 201620, Peoples R China 3.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 4.Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Hu, Youjun,Xu, Yingfeng,Hao, Baolong,et al. Effects of resonant magnetic perturbations on neutral beam heating in a tokamak[J]. PHYSICS OF PLASMAS,2021,28.
APA	Hu, Youjun.,Xu, Yingfeng.,Hao, Baolong.,Li, Guoqiang.,He, Kaiyang.,...&Xu, Yongjian.(2021).Effects of resonant magnetic perturbations on neutral beam heating in a tokamak.PHYSICS OF PLASMAS,28.
MLA	Hu, Youjun,et al."Effects of resonant magnetic perturbations on neutral beam heating in a tokamak".PHYSICS OF PLASMAS 28(2021).