Theory of Alfven eigenmodes in shear reversed plasmas

被引：108
|
作者：
Breizman, BN [1 ]
Berk, HL
Pekker, MS
Pinches, SD
Sharapov, SE
机构：
[1] Univ Texas, Inst Fus Studies, Austin, TX 78712 USA
[2] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany
[3] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
来源：
PHYSICS OF PLASMAS | 2003年 / 10卷 / 09期
关键词：
D O I：
10.1063/1.1597495
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Plasma configurations with shear reversal are prone to the excitation of unusual Alfven eigenmodes by energetic particles. These modes exhibit a quasiperiodic pattern of predominantly upward frequency sweeping (Alfven cascades) as the safety factor q changes in time. This work presents a theory that employs two complementary mechanisms for establishing Alfven cascades: (1) a nonstandard adiabatic response of energetic particles with large orbits and (2) toroidal magnetohydrodynamic effects that are second-order in inverse aspect ratio. The developed theory explains the transition from Alfven cascades to the toroidicity induced Alfven eigenmodes (TAEs), including modifications of the TAEs themselves near the shear reversal point. (C) 2003 American Institute of Physics.
引用
收藏
页码：3649 / 3660
页数：12
相关论文
共 50 条
  • [41] Hybrid simulations of reversed shear Alfven eigenmodes and related nonlinear resonance with fast ions in a tokamak plasma
    Yang, Y. R.
    Chen, W.
    Ye, M. Y.
    Yuan, J. B.
    Xu, M.
    NUCLEAR FUSION, 2020, 60 (10)
  • [42] Observation of Reversed Shear Alfven Eigenmodes between Sawtooth Crashes in the Alcator C-Mod Tokamak
    Edlund, E. M.
    Porkolab, M.
    Kramer, G. J.
    Lin, L.
    Lin, Y.
    Wukitch, S. J.
    PHYSICAL REVIEW LETTERS, 2009, 102 (16)
  • [43] Effects of pressure gradient on existence of Alfven cascade modes in reversed shear tokamak plasmas
    Fu, G. Y.
    Berk, H. L.
    PHYSICS OF PLASMAS, 2006, 13 (05)
  • [44] Multiplicity of low-shear toroidal Alfven eigenmodes
    Candy, J
    Breizman, BN
    VanDam, JW
    Ozeki, T
    PHYSICS LETTERS A, 1996, 215 (5-6) : 299 - 304
  • [45] Identifying Alfven eigenmodes in the early phase of advanced tokamak plasmas
    Young, NP
    Sharapov, SE
    Nakariakov, VM
    PLASMA PHYSICS AND CONTROLLED FUSION, 2006, 48 (02) : 295 - 313
  • [46] Toroidal Alfven eigenmodes in TFTR deuterium-tritium plasmas
    Nazikian, R
    Fu, GY
    Chang, Z
    Batha, SH
    Berk, H
    Budny, RV
    Chen, Y
    Cheng, CZ
    Darrow, DS
    Gorelenkov, NN
    Levinton, FM
    Medley, S
    Petrov, MP
    Redi, M
    Ruskov, E
    Spong, DA
    White, RB
    Zweben, SJ
    PHYSICS OF PLASMAS, 1998, 5 (05) : 1703 - 1711
  • [47] Active control of Alfven eigenmodes in magnetically confined toroidal plasmas
    Garcia-Munoz, M.
    Sharapov, S. E.
    Van Zeeland, M. A.
    Ascasibar, E.
    Cappa, A.
    Chen, L.
    Ferreira, J.
    Galdon-Quiroga, J.
    Geiger, B.
    Gonzalez-Martin, J.
    Heidbrink, W. W.
    Johnson, T.
    Lauber, Ph
    Mantsinen, M.
    Melnikov, A., V
    Nabais, F.
    Rivero-Rodriguez, J. F.
    Sanchis-Sanchez, L.
    Schneider, P.
    Stober, J.
    Suttrop, W.
    Todo, Y.
    Vallejos, P.
    Zonca, F.
    Meyer, H.
    PLASMA PHYSICS AND CONTROLLED FUSION, 2019, 61 (05)
  • [48] Simulation of Alfven eigenmodes destabilized by energetic electrons in tokamak plasmas
    Wang, Jialei
    Todo, Yasushi
    Wang, Hao
    Wang, Zheng-Xiong
    NUCLEAR FUSION, 2020, 60 (11)
  • [49] SHEAR ALFVEN EIGENMODES IN A SHEARED MAGNETIC-FIELD
    LEE, WW
    CHANCE, MS
    NEVINS, WM
    OKUDA, H
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1979, 24 (08): : 1005 - 1005
  • [50] Nonlinear simulation of multiple toroidal Alfven eigenmodes in tokamak plasmas
    Zhu, Xiao-Long
    Wang, Feng
    Wang, Zheng-Xiong
    CHINESE PHYSICS B, 2020, 29 (02)
12345