Magnetic Components of Geodesic Acoustic Modes in Plasmas with Anisotropic Ion Distribution

被引：10
作者：
Zhang Miao [1 ]
Zhou Deng [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
[2] Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China
来源：
PLASMA SCIENCE & TECHNOLOGY | 2010年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
geodesic acoustic mode; harmonic expansion; N=0 CHIRPING MODE; DRIFT WAVES; ZONAL FLOWS; TOROIDAL PLASMAS; GENERATION; TURBULENCE; TOKAMAK; EXPLANATION; EXCITATION; FIELD;
D O I：
10.1088/1009-0630/12/1/02
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：
The existence of magnetic components in geodesic acoustic modes is investigated for a weakly anisotropic tokamak plasma with dual-temperature Maxwellian distributions for ions. An m = 1 perpendicular magnetic perturbation is discovered to be proportional to the relative difference between the two temperatures in addition to an m = 2 perpendicular magnetic perturbation which always exists due to the m = 2 parallel return current, with m the poloidal mode number. The dispersion relation and the mode frequency are also modified by the anisotropic distribution.
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收藏
页码：6 / 10
页数：5
相关论文
共 35 条
  • [1] Effects of plasma current on nonlinear interactions of ITG turbulence, zonal flows and geodesic acoustic modes
    Angelino, P.
    Bottino, A.
    Hatzky, R.
    Jolliet, S.
    Sauter, O.
    Tran, T. M.
    Villard, L.
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2006, 48 (05) : 557 - 571
  • [2] The role of plasma elongation on the linear damping of zonal flows
    Angelino, P.
    Garbet, X.
    Villard, L.
    Bottino, A.
    Jolliet, S.
    Ghendrih, Ph.
    Grandgirard, V.
    McMillan, B. F.
    Sarazin, Y.
    Dif-Pradalier, G.
    Tran, T. M.
    [J]. PHYSICS OF PLASMAS, 2008, 15 (06)
  • [3] Explanation of the JET n=0 chirping mode
    Berk, H. L.
    Boswell, C. J.
    Borba, D.
    Figueiredo, A. C. A.
    Johnson, T.
    Nave, M. F. F.
    Pinches, S. D.
    Sharapov, S. E.
    [J]. NUCLEAR FUSION, 2006, 46 (10) : S888 - S897
  • [4] Observation and explanation of the JET n=0 chirping mode
    Boswell, C. J.
    Berk, H. L.
    Borba, D. N.
    Johnson, T.
    Pinches, S. D.
    Sharapov, S. E.
    [J]. PHYSICS LETTERS A, 2006, 358 (02) : 154 - 158
  • [5] Nonlinear excitation of geodesic acoustic modes by drift waves
    Chakrabarti, N.
    Singh, R.
    Kaw, P. K.
    Guzdar, P. N.
    [J]. PHYSICS OF PLASMAS, 2007, 14 (05)
  • [6] Excitation of zonal flow by drift waves in toroidal plasmas
    Chen, L
    Lin, ZH
    White, R
    [J]. PHYSICS OF PLASMAS, 2000, 7 (08) : 3129 - 3132
  • [7] Non-linear zonal dynamics of drift and drift-Alfven turbulence in tokamak plasmas
    Chen, L
    Lin, Z
    White, RB
    Zonca, F
    [J]. NUCLEAR FUSION, 2001, 41 (06) : 747 - 753
  • [8] CONWAY GD, 2008, PLASMA PHYS CONTROL, V50
  • [9] Zonal flows in plasma - a review
    Diamond, PH
    Itoh, SI
    Itoh, K
    Hahm, TS
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (05) : R35 - R161
  • [10] Multiple eigenmodes of geodesic acoustic mode in collisionless plasmas
    Gao, Zhe
    Itoh, K.
    Sanuki, H.
    Dong, J. Q.
    [J]. PHYSICS OF PLASMAS, 2006, 13 (10)
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