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ELM suppression by resonant magnetic perturbation in high-performance, stationary plasmas

机译:通过高性能固定等离子体中的共振磁扰动来抑制ELM

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摘要

The method of resonant magnetic perturbation (RMP) has been shown to suppress edge-localized modes (ELMs) in the high-performance, stationary (or 'hybrid') scenario in the DIII-D tokamak. Calculations of stability to peeling-ballooning (P-B) modes are shown to be consistent with the observed suppression of type-I ELMs, while the ELM suppression, dependence on edge safety factor and density pump-out are similar for hybrids and standard H-mode discharges. However, other small ELMs can appear when the edge safety factor is outside the resonance window or when the H-mode pedestal is perturbed, which are not related to P-B stability. The role of the edge bootstrap current in determining stochastic heat transport during RMP is discussed.
机译:已经证明,在DIII-D托卡马克的高性能,静态(或“混合”)场景中,共振磁扰法(RMP)可以抑制边缘定位模式(ELM)。计算表明,对剥离-膨胀(PB)模式的稳定性与观察到的对I型ELM的抑制是一致的,而对于混合动力车和标准H模式,ELM抑制,对边缘安全系数的依赖和密度抽出是相似的放电。但是,当边缘安全系数在共振窗口之外或当H模式基座受到干扰时,可能会出现其他小的ELM,这与P-B稳定性无关。讨论了边缘自举电流在RMP过程中确定随机热传递中的作用。

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