Kinetic electromagnetic instabilities in an ITB plasma with weak magnetic shear
作者: W. ChenD.L. YuR.R. MaP.W. ShiY.Y. LiZ.B. ShiH.R. DuX.Q. JiM. JiangL.M. YuB.S. YuanY.G. LiZ.C. YangW.L. ZhongZ.Y. QiuX.T. DingJ.Q. DongZ.X. WangH.L. WeiJ.Y. CaoS.D. SongX.M. SongYi. LiuQ.W. YangM. XuX.R. Duan
作者单位: 1Southwestern Institute of Physics, PO Box 432 Chengdu 610041, China
2Institute for Fusion Theory and Simulation, ZJU, Hangzhou 310027, China
3School of Physics and Optoelectronics, DUT, Dalian 116024, China
刊名: Nuclear Fusion, 2018, Vol.58 (5)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aaaece
原始语种摘要: Kinetic Alfvén and pressure gradient driven instabilities are very common in magnetized plasmas, both in space and the laboratory. These instabilities will be easily excited by energetic particles (EPs) and/or pressure gradients in present-day fusion and future burning plasmas. This will not only cause the loss and redistribution of the EPs, but also affect plasma confinement and transport. Alfvénic ion temperature gradient (AITG) instabilities with the frequency and the toroidal mode numbers are found to be unstable in NBI internal transport barrier plasmas with weak shear and low pressure gradients, where and are the frequencies of the beta- and toroidicity-induced Alfvén eigenmodes, respectively. The measured results are consistent with the general fishbone-like dispersion relation...
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  • shear 切变
  • barrier 堡坝
  • general 普遍的
  • magnetic 磁的
  • since 以来
  • unstable 不稳定的
  • become 成为
  • gradient 倾斜度
  • between 在中间
  • redistribution 重新分配