The effect of a uniform radial electric field on the toroidal ion temperature gradients mode
The effect of a uniform radial electric field on the toroidal ion temperature gradients mode
复制标题
均匀径向电场对环形离子温度梯度模式的影响
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
D. Strintzi
中科院分区：
文献类型：
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作者：
A. Peeters;D. Strintzi
已经表明[Maccio，Phys.Plasmas 8，895（2001）]，均匀的径向电场可以稳定托卡马克等离子体中的环形离子温度梯度模式。本文利用气球变换，进一步阐明了导致稳定化的机制。然而，稳定效果取决于背景分布函数的选择。结果表明，如果电场与环形等离子体旋转的稳定效果变得无效。因此，在目前的许多实验中，这种效应不应该发挥作用。
It has been shown [Maccio, Phys. Plasmas 8, 895 (2001)] that a uniform radial electric field can stabilize the toroidal ion temperature gradient mode in tokamak plasmas. In this paper, using the ballooning transform, the mechanism leading to stabilization is further clarified. However, the stabilizing effect depends on the choice of the background distribution function. It is shown that if the electric field is connected with a toroidal plasma rotation the stabilizing effect becomes ineffective. Consequently, in many current experiments this effect should not play a role.