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首页> 外文期刊>Physics of plasmas >Flute instability and the associated radial transport in the tandem mirror with a divertor mirror cell
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Flute instability and the associated radial transport in the tandem mirror with a divertor mirror cell

机译：带有偏光镜单元的串联镜中的凹槽不稳定性和相关的径向传输

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The flute instability and the associated radial transport are investigated in the tandem mirror with a divertor mirror cell (the GAMMA10 A-divertor) with help of computer simulation, where GAMMA10 is introduced [Inutake, Phys. Rev. Lett. 55, 939 (1985)]. The basic equations used in the simulation were derived on the assumption of an axisymmetric magnetic field. So the high plasma pressure in a nonaxisymmetric minimum-B anchor mirror cell, which is important for the flute mode stability, is taken into account by redefining the specific volume of a magnetic field line. It is found that the flute modes are stabilized by the minimum-B magnetic field even with a divertor mirror although its stabilizing effects are weaker than that without the divertor mirror. The flute instability enhances the radial transport by intermittently repeating the growing up and down of the Fourier amplitude of the flute instability in time.
机译：借助计算机模拟，在带有偏光镜单元（GAMMA10 A偏光镜）的串联镜中研究了凹槽的不稳定性和相关的径向传输，其中引入了GAMMA10 [Inutake，Phys。牧师55，939（1985）]。在模拟中使用的基本方程式是在轴对称磁场的假设下得出的。因此，通过重新定义磁场线的比容，可以考虑非轴对称最小B锚定反射镜单元中的高等离子压力，这对长笛模式的稳定性至关重要。发现即使使用分光镜也可以通过最小B磁场来稳定槽纹模式，尽管其稳定效果比没有分光镜的稳定效果弱。凹槽不稳定性通过在时间上间歇性地重复凹槽不稳定性的傅立叶振幅的增长和下降来增强径向传输。

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