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Surface Structure Modification and Deuterium Retention in Tungsten under Pulsed Plasma Loads

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dc.contributor.authorPoskakalov, A. G.
dc.contributor.authorKlimov, N. S.
dc.contributor.authorGasparyan, Y. M.
dc.contributor.authorOgorodnikova, O. V.
dc.contributor.authorEfimov, V. S.
dc.contributor.authorКлимов, Николай Сергеевич
dc.contributor.authorГаспарян, Юрий Микаэлович
dc.contributor.authorОгородникова, Ольга Вячеславовна
dc.contributor.authorЕфимов, Виталий Сергеевич
dc.date.accessioned2024-11-21T18:03:47Z
dc.date.available2024-11-21T18:03:47Z
dc.date.issued2019
dc.description.abstract© 2019, Pleiades Publishing, Ltd.Modification of the surface layer and deuterium accumulation in tungsten targets under plasma irradiation in a quasi-stationary plasma accelerator with an intrinsic magnetic field QSPA-T, which reproduces the conditions (plasma thermal load of 0.2-5 MJ/m2, pulse duration of 0.1-1.2 ms) typical of ELM events in ITER, are studied. Using a scanning electron microscope, structure modifications at the surface and in the bulk after deuterium plasma irradiation are analyzed. The observed changes in the near-surface layer are compared with the calculated data on the change in the internal structure of tungsten under intense thermal action obtained as a result of the numerical solution of the heat conduction problem. The total deuterium retention in the samples was measured using thermal desorption spectroscopy, and it was in the range of (3-4) × 1016 particles/cm2 for the samples melted during plasma exposure. These numbers exceed by an order of magnitude the values obtained for samples without traces of melting.
dc.format.extentС. 1005-1009
dc.identifier.citationSurface Structure Modification and Deuterium Retention in Tungsten under Pulsed Plasma Loads / Poskakalov, A.G. [et al.] // Physics of Atomic Nuclei. - 2019. - 82. - № 7. - P. 1005-1009. - 10.1134/S106377881907010X
dc.identifier.doi10.1134/S106377881907010X
dc.identifier.urihttps://www.doi.org/10.1134/S106377881907010X
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85080137383&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519390500006
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/19446
dc.relation.ispartofPhysics of Atomic Nuclei
dc.titleSurface Structure Modification and Deuterium Retention in Tungsten under Pulsed Plasma Loads
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.volume82
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