dc.creator | García Muñoz, Manuel | es |
dc.creator | Sharapov, S. E. | es |
dc.creator | Zeeland, M. A. van | es |
dc.creator | Ascasibar, E. | es |
dc.creator | Cappa, A. | es |
dc.creator | Galdón Quiroga, Joaquín | es |
dc.creator | Sanchis Sánchez, Lucía | es |
dc.creator | Rivero Rodriguez, Juan Francisco | es |
dc.date.accessioned | 2020-07-03T14:29:22Z | |
dc.date.available | 2020-07-03T14:29:22Z | |
dc.date.issued | 2019-05 | |
dc.identifier.citation | García Muñoz, M., Sharapov, S.E., Zeeland, M.A.v., Ascasibar, E., Cappa, A., Galdón Quiroga, J.,...,Rivero Rodriguez, J.F. (2019). Active control of Alfvén eigenmodes in magnetically confined toroidal plasmas. Plasma Physics and Controlled Fusion, 61 (5), 054007. | |
dc.identifier.issn | 1361-6587 | es |
dc.identifier.uri | https://hdl.handle.net/11441/98786 | |
dc.description.abstract | Alfvén waves are electromagnetic perturbations inherent to magnetized plasmas that can be
driven unstable by a free energy associated with gradients in the energetic particles’ distribution
function. The energetic particles with velocities comparable to the Alfvén velocity may excite
Alfvén instabilities via resonant wave–particle energy and momentum exchange. Burning
plasmas with large population of fusion born super-Alfvénic alpha particles in magnetically
confined fusion devices are prone to excite weakly-damped Alfvén eigenmodes (AEs) that, if
allowed to grow unabated, can cause a degradation of fusion performance and loss of energetic
ions through a secular radial transport. In order to control the fast-ion distribution and associated
Alfvénic activity, the fusion community is currently searching for external actuators that can
control AEs and energetic ions in the harsh environment of a fusion reactor. Most promising
control techniques are based on (i) variable fast-ion sources to modify gradients in the energetic
particles’ distribution, (ii) localized electron cyclotron resonance heating to affect the fast-ion slowing-down distribution, (iii) localized electron cyclotron current drive to modify the
equilibrium magnetic helicity and thus the AE existence criteria and damping mechanisms, and
(iv) externally applied 3D perturbative fields to manipulate the fast-ion distribution and thus the
wave drive. Advanced simulations help to identify the key physics mechanisms underlying the
observed AE mitigation and suppression and thus to develop robust control techniques towards
future burning plasmas. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.description.sponsorship | Marie-Curie Actions 321455 | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad RYC-2011-09152, FIS2015-69362-P | es |
dc.format | application/pdf | es |
dc.format.extent | 14 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Plasma Physics and Controlled Fusion, 61 (5), 054007. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Alfvén | es |
dc.subject | Perturbations | es |
dc.subject | Waves | es |
dc.subject | MHD | es |
dc.subject | Fusion | es |
dc.subject | Stellarator | es |
dc.subject | Tokamak | es |
dc.title | Active control of Alfvén eigenmodes in magnetically confined toroidal 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 | 633053 | es |
dc.relation.projectID | 321455 | es |
dc.relation.projectID | RYC-2011-09152 | es |
dc.relation.projectID | FIS2015-69362-P | es |
dc.relation.publisherversion | https://doi.org/10.1088/1361-6587/aaef08 | es |
dc.identifier.doi | 10.1088/1361-6587/aaef08 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.contributor.group | Universidad de Sevilla. TEP111: Ingeniería Mecánica | es |
dc.journaltitle | Plasma Physics and Controlled Fusion | es |
dc.publication.volumen | 61 | es |
dc.publication.issue | 5 | es |
dc.publication.initialPage | 054007 | es |
dc.description.awardwinning | Premio Anual Publicación Científica Destacada de la US. Facultad de Física | |