利用可见光成像测量的作为等离子体电流函数的MAST上的L模式灯丝特性
L-mode filament characteristics on MAST as a function of plasma current measured using visible imaging
摘要：
在托卡马克等离子体边缘观察到了清晰的边界结构。这些细丝被径向喷射出来，并在远刮除层（SOL）区域携带等离子体，在那里它们负责产生大部分的传输。利用可见光成像技术，对MAST上L模式等离子体中观察到的细丝的特性进行了研究。一个比较，然后与所观察到的粒子和功率分布在偏滤器作为等离子体电流的函数。的径向速度和较小程度上的径向尺寸的细丝被发现减少等离子体电流增加在恒定的密度和输入功率。在本文中得到的结果的平均灯丝动力学等离子体电流的依赖性是一致的想法，灯丝是负责确定粒子分布在偏滤器。
英文摘要：
Clear filamentary structures are observed at the edge of tokamak plasmas. These filaments are ejected out radially and carry plasma in the far Scrape Off Layer (SOL) region, where they are responsible for producing most of the transport. A study has been performed of the characteristics of the filaments observed in L-mode plasma on MAST, using visible imaging. A comparison has then been made with the observed particle and power profiles obtained at the divertor as a function of the plasma current. The radial velocity and to a lesser extent the radial size of the filaments are found to decrease as the plasma current is increased at constant density and input power. The results obtained in this paper on the dependence of the average filament dynamics on plasma current are consistent with the idea that the filaments are responsible for determining the particle profiles at the divertor.
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