dc.creator | Pace, D. C. | es |
dc.creator | Fisher, R. K. | es |
dc.creator | García Muñoz, Manuel | es |
dc.creator | Heidbrink, W. W. | es |
dc.creator | Zeeland, M. A. van | es |
dc.date.accessioned | 2020-08-31T14:55:00Z | |
dc.date.available | 2020-08-31T14:55:00Z | |
dc.date.issued | 2011-06 | |
dc.identifier.citation | Pace, D.C., Fisher, R.K., García Muñoz, M., Heidbrink, W.W. y Van Zeeland, M.A. (2011). Convective beam ion losses due to Alfven eigenmodes in DIII-D reversed-shear plasmas. Plasma Physics and Controlled Fusion, 53 (6), 062001-. | |
dc.identifier.issn | 0741-3335 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100569 | |
dc.description.abstract | Coherent losses of neutral beam ions are observed at frequencies corresponding
to toroidal and reversed-shear Alfven eigenmodes (RSAEs) in DIII-D. ´
Reversed-shear profiles are created by injecting beam power during the plasma
current ramp. Beam ion losses stemming from Alfven eigenmode activity ´
contribute to flattening of the energetic ion density profile in such discharges.
This is the first observation of convective beam ion losses due to RSAEs.
The energies and pitch angles of lost ions are measured and found to exist
within a well-defined region of phase space. Loss flux signals decrease in
time as current penetrates and Alfven eigenmode activity becomes more core ´
localized. Preliminary Monte Carlo simulations of energetic ion interactions
with measured mode structures show the dominant loss mechanism is a
transition from a counter-passing orbit to a trapped orbit that is lost to the
wall. | es |
dc.description.sponsorship | US Department of Energy DE-AC05-06ER23100, SC-G903402, DE-FC02-04ER54698 | es |
dc.format | application/pdf | es |
dc.format.extent | 13 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Plasma Physics and Controlled Fusion, 53 (6), 062001-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Convective beam ion losses due to Alfven eigenmodes in DIII-D reversed-shear plasmas | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear | es |
dc.relation.projectID | DE-AC05-06ER23100 | es |
dc.relation.projectID | SC-G903402 | es |
dc.relation.projectID | DE-FC02-04ER54698 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1088/0741-3335/53/6/062001 | es |
dc.identifier.doi | 10.1088/0741-3335/53/6/062001 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Plasma Physics and Controlled Fusion | es |
dc.publication.volumen | 53 | es |
dc.publication.issue | 6 | es |
dc.publication.initialPage | 062001 | es |