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dc.contributor.authorStacey, Weston M.
dc.contributor.authorGroebner, Richard J.
dc.date.accessioned2006-04-12T16:13:51Z
dc.date.available2006-04-12T16:13:51Z
dc.date.issued2005-04
dc.identifier.citationPhysics of Plasmas Vol. 12, no. 4 (April 2005) (12 pages)
dc.identifier.urihttp://hdl.handle.net/1853/9261
dc.descriptionReprinted by permission of American Institute of Physics, http://journals.aip.org
dc.description.abstractA calculation of edge density and temperature profiles based on "classical" physics - particle, momentum and energy balance, heat conduction closure relations, neutral particle transport - yielded a pedestal structure that is qualitatively and quantitatively similar to that found experimentally in five DIII-D [J. Luxon, Nucl. Fusion,42, 614 (2002)] discharges, when experimental radial electric field and rotation profiles and experimentally inferred heat transport coefficients were used. The principal cause of the density pedestal was a peaking of the inward pinch velocity just inside the separatrix caused by the negative well in the experimental electric field, and the secondary cause was a peaking of the radial particle flux caused by the ionization of incoming neutrals. There is some evidence that this peaking of the radial particle flux just inside the separatrix may also be responsible in part for the negative electric field in that location.
dc.format.extent227663 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherGeorgia Institute of Technologyen
dc.subjectHeat conduction
dc.subjectIonization
dc.subjectPlasma density
dc.subjectPlasma edges
dc.subjectPlasma temperature
dc.subjectPlasma toroidal confinement
dc.subjectPlasma transport processes
dc.subjectPlasma-beam interactions
dc.subjectTokamaks
dc.titleApplication of a particle, momentum and energy balance model to calculate the structure of the edge pedestal in DIII-Den
dc.typePost-printen
dc.publisher.originalAmerican Institute of Physics


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