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Transient transport phenomena induced by cold pulses in W7-AS

机译:W7-AS中冷脉冲引起的瞬态传输现象

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Cold-pulse experiments were carried out in the W7-AS stellarator for the first time. Carbon was injected by a laser blow-off system into the plasma edge. The electron density increase due to the injected carbon is found to be responsible for the edge electron temperature drop. In all cases, the propagation of the edge temperature perturbation to the plasma centre could be modelled with a local parameter-dependent electron heat diffusivity. Unlike in tokamaks, non-local transport effects were not observed in these experiments. [References: 11]
机译:W7-AS恒星仪首次进行了冷脉冲实验。通过激光吹除系统将碳注入等离子边缘。发现由于注入的碳引起的电子密度增加是边缘电子温度下降的原因。在所有情况下,边缘温度扰动到等离子体中心的传播都可以用局部参数相关的电子热扩散率进行建模。与托卡马克不同,在这些实验中未观察到非局部转运作用。 [参考:11]

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