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Observation of a multimode plasma response and its relationship to density pumpout and edge-localized mode suppression

Paz-Soldan, C.; Nazikian, R.; Haskey, S. R.; Logan, N. C.; Strait, E. J.; Ferraro, N. M.; Hanson, J. M.; King, J. D.; Lanctot, M. J.; Moyer, R. A.; Okabayashi, M.; Park, J-K.; Shafer, M. W.; Tobias, B. J.


Density pumpout and edge-localized mode (ELM) suppression by applied n=2 magnetic fields in low-collisionality DIII-D plasmas are shown to be correlated with the magnitude of the plasma response driven on the high-field side (HFS) of the magnetic axis but not the low-field side (LFS) midplane. These distinct responses are a direct measurement of a multimodal magnetic plasma response, with each structure preferentially excited by a different n=2 applied spectrum and preferentially detected on...[Show more]

CollectionsANU Research Publications
Date published: 2015-03-13
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.114.105001


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