Author/Authors :
Becoulet، نويسنده , , M. and Huysmans، نويسنده , , G. and Thomas، نويسنده , , P. and Joffrin، نويسنده , , E. and Rimini، نويسنده , , F. and Monier-Garbet، نويسنده , , P. and Grosman، نويسنده , , A. and Ghendrih، نويسنده , , P. and Parail، نويسنده , , V. and Lomas، نويسنده , , P. and Matthews، نويسنده , , G. and Wilson، نويسنده , , H. and Gryaznevich، نويسنده , , M. and Counsell، نويسنده , , G. and Loarte، نويسنده , , A. and Saibene، نويسنده ,
Abstract :
The paper reviews recent theoretical and experimental results focussing on the identification of the key factors controlling ELM energy and particle losses both in natural ELMs and in the presence of external controlling mechanisms. Present experiment and theory pointed out the benefit of the high plasma shaping, high q95 and high pedestal density in reducing the ELM affected area and conductive energy losses in Type I ELMs. Small benign ELMs regimes in present machines (EDA, HRS, Type II, Grassy, QH, Type III in impurity seeded discharges at high δ ) and their relevance for ITER are reviewed. Recent studies of active control of ELMs using stochastic boundaries, small pellets and edge current generation are presented.
