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ELMS and strike point jumps
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2005 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 337-39, no 03-jan, 747-750 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2005. Vol. 337-39, no 03-jan, 747-750 p.
Keyword [en]
ELM, edge currents, edge plasma, edge pedestal, JET
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-14619DOI: 10.1016/j.jnucmat.2004.09.067ISI: 000227789500147ScopusID: 2-s2.0-13844296889OAI: diva2:332660
QC 20100525 QC 20111012. 16th International Conference on Plasma Surface Interactions in Controlled Fusion Devices. Portland, ME. MAY 24-28, 2004 Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-10-12Bibliographically approved

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Rachlew, Elisabeth
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Atomic and Molecular Physics
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