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Experimental observation of the radial propagation of ELM induced filaments on ASDEX Upgrade

机译:在ASDEX升级版上ELM诱导的长丝径向传播的实验观察

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摘要

The ASDEX Upgrade tokamak has recently been equipped with a new filament probe for filament studies. The probe features a set of radially separated Langmuir pins which are suited for measuring the radial propagation velocity of impinging filaments. A series of type-I ELMy H-mode discharges has been analysed, and the radial propagation velocity, size and density of 466 filaments have been derived at different distances from the separatrix. Mean radial velocity, size and density have been derived and various parameter dependences have been studied with respect to different models for filament propagation. The radial evolution and density decay have also been investigated.
机译:ASDEX升级版托卡马克最近配备了新的细丝探针,用于细丝研究。该探头具有一组径向分开的Langmuir销,适合测量撞击细丝的径向传播速度。分析了一系列的I型ELMy H型放电,并从离皮层的不同距离推导出了466根细丝的径向传播速度,尺寸和密度。得出了平均径向速度,尺寸和密度,并针对细丝传播的不同模型研究了各种参数依赖性。还研究了径向演化和密度衰减。

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