dc.creator | Myers, C.E. | es |
dc.creator | Eidietis, N.W. | es |
dc.creator | Gerasimov, S.N. | es |
dc.creator | Gerhardt, S.P. | es |
dc.creator | Granetz, R.S. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-07-21T13:23:46Z | |
dc.date.available | 2020-07-21T13:23:46Z | |
dc.date.issued | 2018-01 | |
dc.identifier.citation | Myers, C.E., Eidietis, N.W., Gerasimov, S.N., Gerhardt, S.P., Granetz, R.S., Jet Contributors, y García Muñoz, M. (2018). A multi-machine scaling of halo current rotation. Nuclear Fusion, 58 (1), 1-15. | |
dc.identifier.issn | 1741-4326 | es |
dc.identifier.uri | https://hdl.handle.net/11441/99690 | |
dc.description.abstract | Halo currents generated during unmitigated tokamak disruptions are known to develop
rotating asymmetric features that are of great concern to ITER because they can dynamically
amplify the mechanical stresses on the machine. This paper presents a multi-machine analysis
of these phenomena. More specifically, data from C-Mod, NSTX, ASDEX Upgrade, DIII-D,
and JET are used to develop empirical scalings of three key quantities: (1) the machinespecific minimum current quench time, τCQ; (2) the halo current rotation duration, trot; and (3)
the average halo current rotation frequency, fh . These data reveal that the normalized rotation
duration, trot/τCQ, and the average rotation velocity, vh , are surprisingly consistent from
machine to machine. Furthermore, comparisons between carbon and metal wall machines
show that metal walls have minimal impact on the behavior of rotating halo currents. Finally,
upon projecting to ITER, the empirical scalings indicate that substantial halo current rotation
above fh = 20 Hz is to be expected. More importantly, depending on the projected value of
τCQ in ITER, substantial rotation could also occur in the resonant frequency range of 6–20 Hz.
As such, the possibility of damaging halo current rotation during unmitigated disruptions in
ITER cannot be ruled out. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.description.sponsorship | RCUK Energy Programme EP/ I501045 | es |
dc.description.sponsorship | Princeton University DE-AC02-09CH11466 | es |
dc.format | application/pdf | es |
dc.format.extent | 16 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Nuclear Fusion, 58 (1), 1-15. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Tokamak | es |
dc.subject | Disruptions | es |
dc.subject | Halo currents | es |
dc.title | A multi-machine scaling of halo current rotation | 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 | EP/ I501045 | es |
dc.relation.projectID | DE-AC02-09CH11466 | es |
dc.relation.publisherversion | https://doi.org/10.1088/1741-4326/aa958b | es |
dc.identifier.doi | 10.1088/1741-4326/aa958b | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Nuclear Fusion | es |
dc.publication.volumen | 58 | es |
dc.publication.issue | 1 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 15 | es |