ELMs and strike point jumps

Emilia R. Solano, S. Jachmich, F. Villone, N. Hawkes, Y. Corre, R. A. Pitts, A. Loarte, B. Alper, K. Guenther, A. Koroktov, M. Stamp, P. Andrew, S. A. Arshad, J. Conboy, T. Bolzonella, E. Rachlew, M. Kempenaars, A. Cenedese, D. Testa

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

Abstract

If an ELM is a peeling of flux surfaces from the plasma, due to a broken separatrix, current density is lost as well as particles and energy. The fast loss of a current-carrying plasma layer modifies the plasma equilibrium, leading to sudden shifts in the strike points at each ELM, towards the plasma centre. An experimental study of this conjectured model of the ELM has been made at JET, showing that in all cases of Type I ELMs studied, strike point shifts were observed. In two cases studied in detail, the estimated equilibrium changes provoked by flux surface peeling agree qualitatively with the observed strike point shifts.

OriginalspracheEnglisch
Seiten (von - bis)747-750
Seitenumfang4
FachzeitschriftJournal of Nuclear Materials
Jahrgang337-339
Ausgabenummer1-3 SPEC. ISS.
DOIs
PublikationsstatusVeröffentlicht - 1 März 2005

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