Edge Localized Mode (ELM)
作者： Yunfeng Liang
DOI: 10.1007/978-3-662-44222-7_5
关键词: Transient (oscillation) 、 Edge-localized mode 、 Materials science 、 Plasma edge 、 Pressure gradient 、 Mechanics 、 Fusion 、 Edge (geometry) 、 Critical value 、 Tokamak
摘要: The next generation of fusion machines like ITER and DEMO will need a reliable method for controlling the periodic transient expulsion considerable amount energy onto plasma-facing components caused by instabilities at plasma edge. good confinement in these tokamak devices result steepened pressure profile When gradient exceeds critical value, so-called edge- localized modes (ELMs) are destabilized. These feature fast collapse edge pressure, sudden loss confinement, subsequent release heat particles components. associated loads might cause excess erosion lead to strong reduction component lifetime. In this chapter, an overview recent development several ELM control methods next-generation tokamaks, e.g., is given. Some key physics issues related mechanism discussed.
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