dc.creator | Geiger, B. | es |
dc.creator | García Muñoz, Manuel | es |
dc.creator | Heidbrink, W.W. | es |
dc.creator | McDermott, R. M. | es |
dc.creator | Tardini, G. | es |
dc.date.accessioned | 2020-08-31T14:02:07Z | |
dc.date.available | 2020-08-31T14:02:07Z | |
dc.date.issued | 2011-06 | |
dc.identifier.citation | Geiger, B., García Muñoz, M., Heidbrink, W.W., McDermott, R.M. y Tardini, G. (2011). Fast-ion D-alpha measurements at ASDEX Upgrade. Plasma Physics and Controlled Fusion, 53 (6), 065010-. | |
dc.identifier.issn | 0741-3335 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100567 | |
dc.description.abstract | A fast-ion D-alpha (FIDA) diagnostic has been developed for the fully tungsten
coated ASDEX Upgrade (AUG) tokamak using 25 toroidally viewing lines
of sight and featuring a temporal resolution of 10 ms. The diagnostic’s
toroidal geometry determines a well-defined region in velocity space which
significantly overlaps with the typical fast-ion distribution in AUG plasmas.
Background subtraction without beam modulation is possible because relevant
parts of the FIDA spectra are free from impurity line contamination. Thus,
the temporal evolution of the confined fast-ion distribution function can be
monitored continuously. FIDA profiles during on- and off-axis neutral beam
injection (NBI) heating are presented which show changes in the radial
fast-ion distribution with the different NBI geometries. Good agreement
has been obtained between measured and simulated FIDA radial profiles
in MHD-quiescent plasmas using fast-ion distribution functions provided by
TRANSP. In addition, a large fast-ion redistribution with a drop of about 50%
in the central fast-ion population has been observed in the presence of a q = 2
sawtooth-like crash, demonstrating the capabilities of the diagnostic. | es |
dc.format | application/pdf | es |
dc.format.extent | 20 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Plasma Physics and Controlled Fusion, 53 (6), 065010-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Fast-ion D-alpha measurements at ASDEX Upgrade | 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.publisherversion | http://dx.doi.org/10.1088/0741-3335/53/6/065010 | es |
dc.identifier.doi | 10.1088/0741-3335/53/6/065010 | 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 | 065010 | es |