摘要
In this paper, NOVA/NOVA-K codes are used to investigate the stability of Alfvén eigenmodes(AEs) in the China Fusion Engineering Test Reactor(CFETR). Firstly, the stability of AEs excited by energetic alpha particles is investigated. For the fully non-inductive scenario, it is found that all AEs are stable, and the least stable toroidal mode number is n= 8. However, for the hybrid mode scenario, it is found that many AEs are unstable, and the least stable toroidal mode numbers are n= 7, 8. Secondly, the effect of energetic alpha-particle parameters and beam ions on AE stability is also presented. The threshold of the least stable AE is about βcrit,α = 1.12%,crit,less than the value of alpha-particle beta(βα=1.34%). The result demonstrates that the AEs excited by alpha particles are weakly unstable. The effect of the beam ions on AE stability is found to be very weak in CFETR.
作者
杨文军
李国强
龚学余
高翔
李小娥
Wenjun YANG;Guoqiang LI;Xueyu GONG;Xiang GAO;Xiaoe LI(University of South China,Hengyang 421001,People’s Republic of China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,People’s Republic of China)
基金
supported by National Natural Science Foundation of China(Nos.11947056 and 12005100)
the Natural Science Foundation of Hunan Province(No.2020JJ5468)
the Opening Project of Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment,University of South China(No.2019KFY15)
the Hunan Nuclear Fusion International Science and Technology Innovation Cooperation Base(No.2018WK4009)
the Key Scientific Research Program of Education Department of Hunan Province(No.20A417).
