dc.creator | Carnevale, D. | es |
dc.creator | Ariola, M. | es |
dc.creator | Artaserse, G. | es |
dc.creator | Bagnato, F. | es |
dc.creator | Bin, W. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-27T15:39:41Z | |
dc.date.available | 2020-08-27T15:39:41Z | |
dc.date.issued | 2019-01 | |
dc.identifier.citation | Carnevale, D., Ariola, M., Artaserse, G., Bagnato, F., Bin, W., Jet Contributors, y García Muñoz, M. (2019). Runaway electron beam control. Plasma Physics and Controlled Fusion, 61 (1), 014036-. | |
dc.identifier.issn | 1361-6587 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100508 | |
dc.description.abstract | Post-disruption runaway electron (RE) beams in tokamaks with large current can cause deep
melting of the vessel and are one of the major concerns for ITER operations. Consequently, a
considerable effort is provided by the scientific community in order to test RE mitigation
strategies. We present an overview of the results obtained at FTU and TCV controlling the
current and position of RE beams to improve safety and repeatability of mitigation studies such
as massive gas (MGI) and shattered pellet injections (SPI). We show that the proposed RE beam
controller (REB-C) implemented at FTU and TCV is effective and that current reduction of the
beam can be performed via the central solenoid reducing the energy of REs, providing an
alternative/parallel mitigation strategy to MGI/SPI. Experimental results show that, meanwhile
deuterium pellets injected on a fully formed RE beam are ablated but do not improve RE energy
dissipation rate, heavy metals injected by a laser blow off system on low-density flat-top
discharges with a high level of RE seeding seem to induce disruptions expelling REs.
Instabilities during the RE beam plateau phase have shown to enhance losses of REs, expelled
from the beam core. Then, with the aim of triggering instabilities to increase RE losses, an
oscillating loop voltage has been tested on RE beam plateau phase at TCV revealing, for the first
time, what seems to be a full conversion from runaway to ohmic current. We finally report progresses in the design of control strategies at JET in view of the incoming SPI mitigation
experiments. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.format | application/pdf | es |
dc.format.extent | 9 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Plasma Physics and Controlled Fusion, 61 (1), 014036-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Runaways | es |
dc.subject | Plasma control system | es |
dc.subject | Magnetic confinement | es |
dc.title | Runaway electron beam generation and mitigation during disruptions at JET-ILW (vol 55, 093013, 2015) | 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 | https://doi.org/10.1088/1361-6587/aaef53 | es |
dc.identifier.doi | 10.1088/1361-6587/aaef53 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Plasma Physics and Controlled Fusion | es |
dc.publication.volumen | 61 | es |
dc.publication.issue | 1 | es |
dc.publication.initialPage | 014036 | es |