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Influence of energetic ions on tearing modes in a reversed field pinch

机译:高能离子对反向场收缩中撕裂模式的影响

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Tearing mode stability analysis in the presence of circulating energetic ions (CEI) is studied in the reversed field pinch (RFP) magnetic configuration. In contrast to the minimal effect of precessional drift of CEI on tearing modes in tokamaks, the effect of precessional drift of CEI on tearing modes is important in the RFP. It is found that the effects of CEI on tearing modes in RFP depend on their toroidal circulating direction, and have a strong relation to the pressure gradient of CEI. For co-CEI, tearing modes can be stabilized if the pressure gradient of energetic ions is sufficiently large, which is qualitatively consistent with experimental results in the Madison Symmetric Torus.
机译:在反向场收缩(RFP)磁性配置下研究了存在循环高能离子(CEI)时的撕裂模式稳定性分析。与CEI进动漂移对托卡马克撕裂模式的最小影响相反,CEI进动漂移对撕裂模式的影响在RFP中很重要。研究发现,CEI对RFP撕裂模式的影响取决于它们的环形循环方向,并且与CEI的压力梯度有很强的关系。对于co-CEI,如果高能离子的压力梯度足够大,则撕裂模式可以稳定,这在质量上与Madison Symmetric Torus中的实验结果一致。

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