dc.creator | Arnichand, H. | es |
dc.creator | Sabot, R. | es |
dc.creator | Hacquin, S. | es |
dc.creator | Krämer-Flecken, A. | es |
dc.creator | Bourdelle, C. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-28T13:23:49Z | |
dc.date.available | 2020-08-28T13:23:49Z | |
dc.date.issued | 2015-09 | |
dc.identifier.citation | Arnichand, H., Sabot, R., Hacquin, S., Krämer-Flecken, A., Bourdelle, C., Jet Contributors, y García Muñoz, M. (2015). Discriminating the trapped electron modes contribution in density fluctuation spectra. Nuclear Fusion, 55 (9), 093021-. | |
dc.identifier.issn | 0029-5515 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100537 | |
dc.description.abstract | Quasi-coherent (QC) modes have been reported for more than 10 years in reflectometry
fluctuations spectra in the core region of fusion plasmas. They have characteristics in-between
coherent and broadband fluctuations as they oscillate at a marked frequency but have a wide
spectrum. This work presents further evidences of the link recently established between QC
modes and the trapped electron modes (TEM) instabilities (Arnichand et al 2014 Nucl. Fusion
54 123017). In electron cyclotron resonance heated discharges of Tore Supra, an enhancement
of QC modes amplitude is observed in a region where TEM cause impurity transport and
turbulence. In JET Ohmic plasmas, QC modes disappear during density ramp-up and current
ramp-down. This is reminiscent of Tore Supra and TEXTOR observations during transitions
from the linear Ohmic confinement (LOC) to the saturated Ohmic confinement (SOC)
regimes. Evidencing TEM activity then becomes experimentally possible via analysis of
fluctuation spectra. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.format | application/pdf | es |
dc.format.extent | 11 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Nuclear Fusion, 55 (9), 093021-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Turbulence | es |
dc.subject | Micro-instabilities | es |
dc.subject | Trapped electron modes | es |
dc.subject | Electron cyclotron resonance heating | es |
dc.subject | Ohmic confinement | es |
dc.subject | Reflectometry | es |
dc.title | Discriminating the trapped electron modes contribution in density fluctuation spectra | 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 | 633053 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1088/0029-5515/55/9/093021 | es |
dc.identifier.doi | 10.1088/0029-5515/55/9/093021 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Nuclear Fusion | es |
dc.publication.volumen | 55 | es |
dc.publication.issue | 9 | es |
dc.publication.initialPage | 093021 | es |