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Resonant magnetic perturbation experiments on MAST using external and internal coils

A. Kirk ; E. Nardon ; R. Akers ; M. Bécouleta ; G. De Temmerman ; B. Dudsonb ; B. Hnatc ; Yueqiang Liu (Institutionen för rymd- och geovetenskap, Transportteori) ; R. Martin ; P. Tamain ; D. Taylor
Nuclear Fusion (0029-5515). Vol. 50 (2010), 3, p. 034008.
[Artikel, refereegranskad vetenskaplig]

Experiments have been performed on MAST using both external (n = 1, 2) and internal (n = 3) resonant magnetic perturbation (RMP) coils. ELM suppression has not been achieved even though vacuum modelling shows that either set of coils can produce a region (ΔΨpol > 0.17), for which the Chirikov parameter is greater than 1, wider than that correlated with ELM suppression in DIII-D. Although complete ELM suppression has not been achieved, application of RMPs has triggered ELMs in ELM free H-mode periods (n = 3) and increased the ELM frequency in regularly ELM-ing discharges (n = 2, 3). In addition, the application of RMPs in an n = 3 configuration has produced large changes to the edge turbulence in L-mode discharges.



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Denna post skapades 2011-12-15. Senast ändrad 2013-10-29.
CPL Pubid: 150129

 

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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Transportteori (2010-2012)

Ämnesområden

Energi
Plasmafysik
Fusion

Chalmers infrastruktur