Two-dimensional visualization of growth and burst of the edge-localized filaments in KSTAR H-mode plasmas.
作者： G. S. Yun , W. Lee , M. J. Choi , J. Lee , H. K. Park
DOI: 10.1103/PHYSREVLETT.107.045004
关键词:
摘要: The filamentary nature and dynamics of edge-localized modes (ELMs) in the KSTAR high-confinement mode plasmas have been visualized 2D via electron cyclotron emission imaging. ELM filaments rotating with a net poloidal velocity are observed to evolve three distinctive stages: initial linear growth, interim quasisteady state, final crash. crash is initiated by narrow fingerlike perturbation growing radially from poloidally elongated filament. filament bursts through this finger, leading fast collective heat convection edge region into scrape-off layer, i.e.,
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