Effects of circulating energetic ions on sawtooth oscillations

被引：110
作者：
Wang, SJ [1 ]
Ozeki, T
Tobita, K
机构：
[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
[2] Japan Atom Energy Res Inst, Naka Fus Res Estab, Ibaraki 3110193, Japan
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.88.105004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In contrast to the well-known result that the effects of the trapped energetic ions (TEI) on the internal kink mode are due to the toroidal precession of the TEI, it is found that the effects of the circulating energetic ions (CEI) on sawtooth are due to the toroidal circulation of the CEI. The effects of the CEI on sawtooth oscillations are found to be different from the well-known purely stabilizing effects of the TEI on sawtooth oscillations; the toroidal circulation of the co-CEI provides an additional sink of free energy and stabilizes the mode; the toroidal circulation of the counter-CEI provides an additional source of free energy and destabilizes the mode.
引用
收藏
页数：4
相关论文
共 17 条
  • [1] MAGNETIC RECONNECTION AND M = 1 OSCILLATIONS IN CURRENT-CARRYING PLASMAS
    ARA, G
    BASU, B
    COPPI, B
    LAVAL, G
    ROSENBLUTH, MN
    WADDELL, BV
    [J]. ANNALS OF PHYSICS, 1978, 112 (02) : 443 - 476
  • [2] DESTABILIZATION OF THE INTERNAL KINK BY ENERGETIC CIRCULATING IONS
    BETTI, R
    FREIDBERG, JP
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (22) : 3428 - 3430
  • [3] INTERNAL KINK MODES IN TOROIDAL PLASMAS WITH CIRCULAR CROSS-SECTIONS
    BUSSAC, MN
    PELLAT, R
    EDERY, D
    SOULE, JL
    [J]. PHYSICAL REVIEW LETTERS, 1975, 35 (24) : 1638 - 1641
  • [4] EXCITATION OF INTERNAL KINK MODES BY TRAPPED ENERGETIC BEAM IONS
    CHEN, L
    WHITE, RB
    ROSENBLUTH, MN
    [J]. PHYSICAL REVIEW LETTERS, 1984, 52 (13) : 1122 - 1125
  • [5] THEORETICAL-MODEL OF FISHBONE OSCILLATIONS IN MAGNETICALLY CONFINED PLASMAS
    COPPI, B
    PORCELLI, F
    [J]. PHYSICAL REVIEW LETTERS, 1986, 57 (18) : 2272 - 2275
  • [6] QUIESCENT WINDOW FOR GLOBAL PLASMA MODES
    COPPI, B
    DETRAGIACHE, P
    MIGLIUOLO, S
    PEGORARO, F
    PORCELLI, F
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (25) : 2733 - 2736
  • [7] ON THE STABILITY OF THE INTERNAL KINK MODE IN THE BANANA REGIME
    FOGACCIA, G
    ROMANELLI, F
    [J]. PHYSICS OF PLASMAS, 1995, 2 (01) : 227 - 240
  • [8] Fast particle finite orbit width and Larmor radius effects on low-n toroidicity induced Alfven eigenmode excitation
    Gorelenkov, NN
    Cheng, CZ
    Fu, GY
    [J]. PHYSICS OF PLASMAS, 1999, 6 (07) : 2802 - 2807
  • [9] STABILITY OF IDEAL AND RESISTIVE INTERNAL KINK MODES IN TOROIDAL GEOMETRY
    HASTIE, RJ
    HENDER, TC
    CARRERAS, BA
    CHARLTON, LA
    HOLMES, JA
    [J]. PHYSICS OF FLUIDS, 1987, 30 (06) : 1756 - 1766
  • [10] Fast particle experiments in JT-60U
    Kramer, GJ
    Iwase, M
    Kusama, Y
    Morioka, A
    Nemoto, M
    Nishitani, T
    Shinohara, K
    Takeji, S
    Tobita, K
    Ozeki, T
    Cheng, CZ
    Fu, GY
    Nazikian, R
    [J]. NUCLEAR FUSION, 2000, 40 (07) : 1383 - 1396
12