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论文类型：期刊论文

发表时间：2017-08-03

发表刊物：RADIATION EFFECTS AND DEFECTS IN SOLIDS

收录刊物：SCIE、EI、Scopus

卷号：172

期号：7-8

页面范围：555-566

ISSN号：1042-0150

关键字：Type-III ELM; current filament; scrape-off layer

摘要：Measurements of current-carrying filaments associated with Type-III edge localized mode (ELM) have recently been made in the Experimental Advanced Superconducting Tokamak by direct probing of the edge plasma using an advanced, fast-moving electrostatic and magnetic probe system. Contrary to expectations, no current filaments were detected near the separatrix. However, a clear signature of current filament has been observed in the far scrape-off layer (SOL) where the difference of the voltage between the divertor plates connecting a filament is sufficiently large, thus strongly suggesting that the current-carrying filaments form in the SOL, rather than being ejected from the plasma inside the separatrix. These findings provide, for the first time, information on the formation and sustainment of current filaments during type-III ELMy H-modes.