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首页> 外文期刊>Plasma and Fusion Research >Fokker-Planck Simulation Study of Hot-Tail Effect on Runaway Electron Generation in ITER Disruptions
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Fokker-Planck Simulation Study of Hot-Tail Effect on Runaway Electron Generation in ITER Disruptions

机译：ITER扰动中热尾效应对电子失控产生的Fokker-Planck模拟研究

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A Fokker-Planck code TASK/FP, which calculates the evolution of the relativistic momentum distribution function of electrons and the induced toroidal electric field, has been applied to the study of runaway electron (RE) generation in ITER disruptions. The hot-tail effect on the RE generation is investigated. Hot tail is formed during the thermal quench ahead of the Dreicer generation, which have an impact on the subsequent current and the electric field evolution. The hot-tail affects the RE current density profile even in the secondary RE dominant case. In spite of the small ratio of the primary electrons, they are multiplied significantly by the avalanche effect. Consequently, the hot-tail effect plays an important role in determining the total RE current density profile after the current quench.
机译：计算电子相对论动量分布函数和感应环形电场的演化的Fokker-Planck编码TASK / FP已用于研究ITER破坏中失控电子（RE）的产生。研究了热尾对稀土生成的影响。在Dreicer产生之前的热淬火过程中会形成热尾，这会对随后的电流和电场演化产生影响。即使在次级RE主导情况下，热尾也会影响RE电流密度曲线。尽管一次电子的比例很小，但雪崩效应却使它们倍增。因此，热尾效应在确定电流淬火后的总RE电流密度分布中起着重要作用。

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