Magnetic turbulence is directly observed internally in the pedestal of ELMy H-mode tokamak plasmas using a newly developed Faraday-effect polarimetry measurement. Fluctuation amplitude is δ b r ≥ 15 G (150–500 kHz), with a ratio of magnetic to density fluctuation | δ b r / B | / | δ n / n | ≥ 0.15. Magnetic turbulence is identified as resulting from micro-tearing-instability and mode growth accompanied by degraded plasma confinement is observed.

中文翻译：

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ELMy H 型托卡马克等离子体中磁湍流的内部测量

使用新开发的法拉第效应偏振测量法直接在 ELMy H 模式托卡马克等离子体基座内部观察到磁湍流。波动幅度为 δ br ≥ 15 G (150–500 kHz)，具有磁密度波动之比 | δ br / B | / | δ n / n | ≥ 0.15。磁湍流被确定为由微撕裂​​不稳定性引起的，并且观察到伴随着退化的等离子体约束的模式增长。