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

Simple item page
dc.contributor.authorPaz-Soldan, C.
dc.contributor.authorNazikian, R.
dc.contributor.authorHaskey, S. R.
dc.contributor.authorLogan, N. C.
dc.contributor.authorStrait, E. J.
dc.contributor.authorFerraro, N. M.
dc.contributor.authorHanson, J. M.
dc.contributor.authorKing, J. D.
dc.contributor.authorLanctot, M. J.
dc.contributor.authorMoyer, R. A.
dc.contributor.authorOkabayashi, M.
dc.contributor.authorPark, J-K.
dc.contributor.authorShafer, M. W.
dc.contributor.authorTobias, B. J.
dc.date.accessioned2015-05-14T00:35:57Z
dc.date.available2015-05-14T00:35:57Z
dc.date.issued2015-03-13
dc.date.updated2015-12-10T10:31:41Z
dc.description.abstractDensity 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 the LFS or HFS. Ideal and resistive magneto-hydrodynamic (MHD) calculations find that the LFS measurement is primarily sensitive to the excitation of stable kink modes, while the HFS measurement is primarily sensitive to resonant currents (whether fully shielding or partially penetrated). The resonant currents are themselves strongly modified by kink excitation, with the optimal applied field pitch for pumpout and ELM suppression significantly differing from equilibrium field alignment.
dc.description.sponsorshipThis material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility, under Awards No. DE-FC02-04ER54698, No. DE-AC02-09CH11466, No. DE-FG02-04ER54761, No. DE-AC05-06OR23100, No. DE-SC0001961, and No. DE-AC05-00OR22725. S. R. H. was supported by AINSE and ANSTO.en_AU
dc.format5 pages
dc.identifier.issn0031-9007en_AU
dc.identifier.urihttp://hdl.handle.net/1885/13481
dc.publisherAmerican Physical Society
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0031-9007/..."Publisher's version/PDF may be used. On author's personal website, employer's website or institutional repository" from SHERPA/RoMEO site (as at 14/05/15)
dc.rights© 2015 American Physical Society
dc.sourcePhysical Review Letters
dc.titleObservation of a multimode plasma response and its relationship to density pumpout and edge-localized mode suppression
dc.typeJournal article
local.bibliographicCitation.issue10en_AU
local.bibliographicCitation.lastpage105001-5en_AU
local.bibliographicCitation.startpage105001-1en_AU
local.contributor.affiliationHaskey, S. R., Plasma Research Laboratory, The Australian National Universityen_AU
local.contributor.authoremailshaun.haskey@anu.edu.auen_AU
local.contributor.authoruidu4707372en_AU
local.identifier.absfor020204 - Plasma Physics; Fusion Plasmas; Electrical Discharges
local.identifier.ariespublicationa383154xPUB1304
local.identifier.citationvolume114en_AU
local.identifier.doi10.1103/PhysRevLett.114.105001en_AU
local.identifier.scopusID2-s2.0-84925438634
local.identifier.uidSubmittedByu1005913en_AU
local.publisher.urlhttp://www.aps.org/en_AU
local.type.statusPublished Versionen_AU

Downloads

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Paz-Soldan et al Observation of a Multimode Plasma Response 2015.pdf
Size:
712.4 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
884 B
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2024 LYRASIS