MAST Team (Including: Kirk, A., Nardon, E., Akers, R., Becoulet, M., De Temmerman, G., Dudson, B., Hnat , B., Liu, Y. Q., Martin, R., Tamain, P. and Taylor, D.). (2010) Resonant magnetic perturbation experiments on MAST using external and internal coils for ELM control. Nuclear Fusion, Vol.50 (No.3). Article: 034008. doi:10.1088/0029-5515/50/3/034008

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Abstract

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 (Delta Psi(pol) > 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.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Nuclear Fusion
Publisher:	Institute of Physics Publishing Ltd.
ISSN:	0029-5515
Official Date:	March 2010
Dates:	Date Event March 2010 Published
Volume:	Vol.50
Number:	No.3
Number of Pages:	9
Page Range:	Article: 034008
DOI:	10.1088/0029-5515/50/3/034008
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Title of Event:	4th Workshop on Stochasticity in Fusion Plasmas
Location of Event:	Julich, Germany
Date(s) of Event:	March 02-04, 2009

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