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Study of Magnetic Island Using a 3D MHD Equilibrium Calculation Code

机译：使用3D MHD平衡计算代码研究磁岛

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Coupling the magnetic diagnostics and a 3D MHD equilibrium calculation code, the magnetic island is studied in the Large Helical Device (LHD) experiment. In an experiment, the collapse in the plasma core was observed in a configuration, which has large magnetic island produced by external perturbation coils. At the collapse, the temperatur profile was flattened. This suggests the magnetic island evolved. The magnetic island was observed by the magnetic diagnostics. The magnetic diagnostics also suggests evolving the magnetic island. A 3D MHD equilibrium is caluclated by the 3D MHD equilibrium code then signals of the magnetic diagnostics are simulated. Since the comparison of observed and calculated signals is comparable, the magnetic island in calculated equilibrium is similar to one of the experiment.
机译：结合磁诊断程序和3D MHD平衡计算代码，在大型螺旋设备（LHD）实验中研究了磁岛。在一个实验中，以一种配置观察到了等离子体核心的塌陷，该配置具有由外部扰动线圈产生的大磁岛。在塌陷时，温度轮廓变平。这表明磁性岛已经演化。通过磁诊断观察到磁岛。磁性诊断还建议演化磁性岛。通过3D MHD平衡代码计算3D MHD平衡，然后模拟磁诊断信号。由于观测信号与计算信号的比较是可比较的，因此计算平衡中的磁岛类似于实验之一。

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