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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 ISSN 0029-5515.
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Official URL: http://dx.doi.org/10.1088/0029-5515/50/3/034008
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 | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Nuclear Fusion | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0029-5515 | ||||
Official Date: | March 2010 | ||||
Dates: |
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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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