Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR

doi:10.1088/1741-4326/abe4e8

	Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR
	Hao,Baolong 1; White,Roscoe 2; Gao,Xiang 1,3; Li,Guoqiang 3; Chen,Wei 4; Wang,Xiaojing 3; Wu,Bin 3; Wu,Muquan 1; Zhu,Xiang 1; Lin,Xiaodong 1
刊名	Nuclear Fusion
	2021-03-22
卷号	61
关键词	tokamak alpha particle instability drift island resonance
ISSN号	0029-5515
DOI	10.1088/1741-4326/abe4e8
通讯作者	Hao,Baolong() ; Gao,Xiang()
英文摘要	AbstractThe confinement of alpha particles in burning plasma is a key issue in fusion reactor design, including particle interaction with instabilities. This paper includes two topics: the effect of neoclassical tearing modes (NTMs) and toroidal field ripple on alpha particle loss, and the assessment of particle redistribution under an NTM with a reduced model. We consider Chinese fusion engineering test reactor parameters, the alpha particle distribution given by TRANSP/NUBEAM and the NTM perturbation function given by the initial value code TM1. We show that the synergistic effect of the NTM and ripple is negligible; the particle loss fraction does not change with increasing NTM amplitude. Only passing particles are affected by the mode particle resonance, producing profile flattening but no increased loss because only trapped particles are influenced by ripple. To study alpha particle profile flattening, the work adopts an innovative method of phase vector rotation to determine regions of good and broken Kolmogorov–Arnold–Moser surfaces and equilibrates the particle density according to local stochasticity.
资助项目	National Nature Science Foundation of China[11905142] ; National Nature Science Foundation of China[11875290] ; US Department of Energy (DOE)[DE-AC02-09CH11466]
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0029-5515-61-4-ABE4E8
资助机构	National Nature Science Foundation of China ; US Department of Energy (DOE)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120708]
专题	中国科学院合肥物质科学研究院
通讯作者	Hao,Baolong; Gao,Xiang
作者单位	1.Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, China 2.Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543, United States of America 3.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China 4.Southwestern Institute of Physics, Chengdu 610041, China
推荐引用方式 GB/T 7714	Hao,Baolong,White,Roscoe,Gao,Xiang,et al. Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR[J]. Nuclear Fusion,2021,61.
APA	Hao,Baolong.,White,Roscoe.,Gao,Xiang.,Li,Guoqiang.,Chen,Wei.,...&Physics Team,CFETR.(2021).Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR.Nuclear Fusion,61.
MLA	Hao,Baolong,et al."Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR".Nuclear Fusion 61(2021).