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Extended Range of Stable Radial Position of Tokamak Plasma in TOKASTAR-2

机译:托卡马克2中托卡马克等离子体的稳定径向位置扩展范围

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In TOKASTAR-2, the tokamak plasma position was radially unstable in the outer region due to a large decay index ( n -index) of the vertical field. To improve the radial position stability, the position of pulsed vertical field coils was moved toward the midplane. After the modification, improvement in the decay index profile and extension of the range of the stable radial plasma position toward the outer region were observed by the internal magnetic field measurement. The variation in the outermost position of the plasma center was about half of the radial shift of the decay index curve.
机译:在TOKASTAR-2中,由于垂直场的衰减指数大(n指数),所以托卡马克等离子体的位置在外部区域是径向不稳定的。为了提高径向位置稳定性,将脉冲垂直场线圈的位置移向中平面。修改后,通过内部磁场测量观察到了衰减指数分布的改善和稳定的径向等离子体位置朝着外部区域的范围的扩展。等离子体中心的最外部位置的变化大约是衰减指数曲线的径向位移的一半。

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