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Accounting for Edge-Plasma Parameter Dynamics at JET Divertor Sputtering Estimation during Edge-Localized Modes

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dc.contributor.authorBorodkina, I. E.
dc.contributor.authorKurnaev, V. A.
dc.date.accessioned2024-11-27T16:26:21Z
dc.date.available2024-11-27T16:26:21Z
dc.date.issued2020
dc.description.abstractThe sputtering of tungsten divertor tiles at the JET ITER-like wall (ILW) during edge-localized modes (ELMs) is one of the main sources of tungsten impurity in the core plasma. The analytical approach for interpretation of the Langmuir probe (LP) measurements of ion flux at the divertor tile is elaborated to model the ELM ion parallel transport and to estimate the flux of sputtered tungsten atoms from the divertor under inter-ELM and intra-ELM conditions. Accounting for the pedestal temperature and density decrease at the pedestal crash during ELM allows obtaining the profiles of the particle and heat fluxes at the divertor tile corresponding to the measurements at the physically correct magnetic connection length. Estimates of the tungsten sputtered flux under intra-ELM and inter-ELM conditions show that first type ELMs contribute significantly (similar to 85%) to the overall tungsten sputtering, which is in a good agreement with the divertor optical emission spectroscopy of the 400.9 nm atomic neutral tungsten line in JET discharges.
dc.format.extentС. 1145-1150
dc.identifier.citationBorodkina, I. E. Accounting for Edge-Plasma Parameter Dynamics at JET Divertor Sputtering Estimation during Edge-Localized Modes / Borodkina, IE, Kurnaev, VA // Physics of Atomic Nuclei. - 2020. - 83. - № 7. - P. 1145-1150. - 10.1134/S1063778820070030
dc.identifier.doi10.1134/S1063778820070030
dc.identifier.urihttps://www.doi.org/10.1134/S1063778820070030
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85100959385&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000617283500012
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/23108
dc.relation.ispartofPhysics of Atomic Nuclei
dc.titleAccounting for Edge-Plasma Parameter Dynamics at JET Divertor Sputtering Estimation during Edge-Localized Modes
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.volume83
relation.isOrgUnitOfPublicationdcdb137c-0528-46a5-841b-780227a67cce
relation.isOrgUnitOfPublication.latestForDiscoverydcdb137c-0528-46a5-841b-780227a67cce
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