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Energetic ion transport by microturbulence is insignificant in tokamaks

dc.contributor.authorPace, David C.
dc.contributor.authorAustin, M. E.
dc.contributor.authorBass, E. M.
dc.contributor.authorBudny, R. V.
dc.contributor.authorHeidbrink, W. W.
dc.contributor.authorHillesheim, J. C.
dc.contributor.authorHolcomb, C. T.
dc.contributor.authorGorelenkova, M.
dc.contributor.authorGrierson, B. A.
dc.contributor.authorMcCune, D. C.
dc.contributor.authorMcKee, G. R.
dc.contributor.authorMuscatello, C. M.
dc.contributor.authorPark, J. M.
dc.contributor.authorPetty, C. C.
dc.contributor.authorRhodes, T. L.
dc.contributor.authorStaebler, G. M.
dc.contributor.authorSuzuki, T.
dc.contributor.authorVan Zeeland, M. A.
dc.contributor.authorWaltz, R. E.
dc.contributor.authorWang, G.
dc.contributor.authorWhite, Anne E.
dc.contributor.authorYan, Z.
dc.contributor.authorYuan, X.
dc.contributor.authorZhu, Y. B.
dc.date.accessioned2015-03-05T20:48:53Z
dc.date.available2015-03-05T20:48:53Z
dc.date.issued2013
dc.date.submitted2012-12
dc.identifier.issn1070664X
dc.identifier.urihttp://hdl.handle.net/1721.1/95898
dc.description.abstractEnergetic ion transport due to microturbulence is investigated in magnetohydrodynamic-quiescent plasmas by way of neutral beam injection in the DIII-D tokamak [J. L. Luxon, Nucl. Fusion 42, 614 (2002)]. A range of on-axis and off-axis beam injection scenarios are employed to vary relevant parameters such as the character of the background microturbulence and the value of Eb/Te , where Eb is the energetic ion energy and Te the electron temperature. In all cases, it is found that any transport enhancement due to microturbulence is too small to observe experimentally. These transport effects are modeled using numerical and analytic expectations that calculate the energetic ion diffusivity due to microturbulence. It is determined that energetic ion transport due to coherent fluctuations (e.g., Alfvén eigenmodes) is a considerably larger effect and should therefore be considered more important for ITER.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FC02-04ER54698)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FC02-99ER54512)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FG03-97ER54415)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FG02-07ER54917)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-AC02-09CH11466)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (SC-G903402)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FG02-08ER54984)en_US
dc.description.sponsorshipUnited States. Dept. of Energy ( DE-AC52-07NA27344)en_US
dc.description.sponsorshipUnited States. Dept. of Energy ( DE-FG02-89ER53296)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-FG02-08ER54999)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-AC05-00OR22725)en_US
dc.language.isoen_US
dc.publisherAmerican Institute of Physics (AIP)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.4803930en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceOther repositoryen_US
dc.titleEnergetic ion transport by microturbulence is insignificant in tokamaksen_US
dc.typeArticleen_US
dc.identifier.citationPace, D. C., M. E. Austin, E. M. Bass, R. V. Budny, W. W. Heidbrink, J. C. Hillesheim, C. T. Holcomb, et al. “Energetic Ion Transport by Microturbulence Is Insignificant in Tokamaks.” Phys. Plasmas 20, no. 5 (2013): 056108.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.mitauthorWhite, Anne E.en_US
dc.relation.journalPhysics of Plasmasen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsPace, D. C.; Austin, M. E.; Bass, E. M.; Budny, R. V.; Heidbrink, W. W.; Hillesheim, J. C.; Holcomb, C. T.; Gorelenkova, M.; Grierson, B. A.; McCune, D. C.; McKee, G. R.; Muscatello, C. M.; Park, J. M.; Petty, C. C.; Rhodes, T. L.; Staebler, G. M.; Suzuki, T.; Van Zeeland, M. A.; Waltz, R. E.; Wang, G.; White, A. E.; Yan, Z.; Yuan, X.; Zhu, Y. B.en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-2951-9749
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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