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Resonant magnetic perturbation experiments on MAST using external and internal coils for ELM control

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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

Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/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:
DateEvent
March 2010Published
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

Data sourced from Thomson Reuters' Web of Knowledge

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