Interchange mode excited by trapped energetic ions

Interchange mode excited by trapped energetic ions
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由捕获的高能离子激发的交换模式

DOI:
10.1063/1.4926509
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发表时间:
2015
期刊:
影响因子:
2.2
通讯作者:
S. Nishimura
S. Nishimura
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
S. Nishimura

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修正了描述理想磁流体动力学(MHD)模式与捕获的高能离子之间相互作用的动能原理。在背景等离子体的简化理想MHD方程和捕获高能离子的反弹平均漂移动力学方程的基础上,提出了一个模型。该模型适用于大纵横比环面器件。具体来说,分析了捕获的高能离子对螺旋体系中交换模式的影响。结果表明,交换模式被捕获的高能离子激发,即使平衡态稳定于理想的交换模式。交换模式的能量离子诱导分支可能与螺旋体系中的鱼骨模式有关。
The kinetic energy principle describing the interaction between ideal magnetohydrodynamic (MHD) modes with trapped energetic ions is revised. A model is proposed on the basis of the reduced ideal MHD equations for background plasmas and the bounce-averaged drift-kinetic equation for trapped energetic ions. The model is applicable to large-aspect-ratio toroidal devices. Specifically, the effect of trapped energetic ions on the interchange mode in helical systems is analyzed. Results show that the interchange mode is excited by trapped energetic ions, even if the equilibrium states are stable to the ideal interchange mode. The energetic-ion-induced branch of the interchange mode might be associated with the fishbone mode in helical systems.
DOI: 10.1103/physrevlett.103.045001
发表时间: 2009-07-24
影响因子: 8.6
作者:
Matsunaga, G.;Aiba, N.;Ozeki, T.
通讯作者: Ozeki, T.
高能离子诱导交换模式的新理论
DOI: --
发表时间: 2015
影响因子: 1.7
作者:
市川雄大;石井貴晃;古水 雄志;松下琢;金秀良;石田誠一;宮島敦子;関野裕子;仲吉信人;Seiya Nishimura
通讯作者: Seiya Nishimura