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Beam-facing material selection for mitigation of residual doses in the HEBT of IFMIF-DONES

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dc.contributor.authorOgando Serrano, Francisco M.
dc.contributor.authorMacià, Llorenç
dc.contributor.authorLópez Ochoa, Víctor
dc.contributor.authorPodadera Aliseda, Ivan
dc.contributor.authorSánchez Herranz, Daniel
dc.contributor.orcidhttps://orcid.org/0000-0001-5599-336X
dc.contributor.orcidhttps://orcid.org/0000-0002-3459-4631
dc.contributor.orcidhttps://orcid.org/0000-0001-7090-2550
dc.date.accessioned2025-02-21T08:31:44Z
dc.date.available2025-02-21T08:31:44Z
dc.date.issued2024
dc.descriptionThe registered version of this article, first published in “Nuclear Materials and Energy, Volume 38, 2024", is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.nme.2024.101592 La versión registrada de este artículo, publicado por primera vez en “Nuclear Materials and Energy, Volume 38, 2024", está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.nme.2024.101592
dc.description.abstractIFMIF-DONES will be an irradiation facility based on a 40 MeV deuteron accelerator. Unavoidable beam losses along the accelerator result in deuterium interactions with the beam facing materials of the vacuum beam pipe, some of them leading to material activation. The initial design of the beam pipe was based on stainless steel, but an evaluation of the residual doses from the pipe showed high values after operation of the accelerator. The accelerator beam line must be periodically maintained, and excessive cooling times for reaching acceptable dose levels may result in poorer availability of the facility. A deeper study of the High Energy Beam Transport line (HEBT) showed that a direct reaction between deuterons and iron in steel resulted in the production of Co-56, with a half-life of 77 days. This radioisotope is the main source of the radiation and makes it impractical to wait for a proper attenuation of the radiation field. A redesign of beam line elements has been performed to avoid the presence of stainless steel as a beam facing material and to replace it with aluminum where possible, resulting in faster decay of residual doses. This work contains a summary of the nuclear analysis performed for the computation of residual doses with stainless steel beam pipe, stressing the uncertainties of the calculations, based on the limited availability of nuclear data for the relevant nuclear reaction Fe56 (d,2n). The proposed replacement of element materials is also described, and an updated nuclear analysis shows the reduction of residual radiation, and its impact on possible maintenance operations.en
dc.description.versionversión publicada
dc.identifier.citationFrancisco Ogando, Llorenç Macia, Victor Lopez, Ivan Podadera, Daniel Sanchez-Herranz, Beam-facing material selection for mitigation of residual doses in the HEBT of IFMIF-DONES, Nuclear Materials and Energy, Volume 38, 2024, 101592, ISSN 2352-1791, https://doi.org/10.1016/j.nme.2024.101592
dc.identifier.doihttps://doi.org/10.1016/j.nme.2024.101592
dc.identifier.issn2352-1791
dc.identifier.urihttps://hdl.handle.net/20.500.14468/25953
dc.journal.titleNuclear Materials and Energy
dc.journal.volume38
dc.language.isoen
dc.page.initial101592
dc.publisherELSEVIER
dc.relation.centerE.T.S. de Ingenieros Industriales
dc.relation.departmentIngeniería Energética
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.es
dc.subject33 Ciencias Tecnológicas
dc.subject.keywordsIFMIF-DONESen
dc.subject.keywordsparticle acceleratoren
dc.subject.keywordsbeam facing materialen
dc.subject.keywordsaluminumen
dc.subject.keywordsradiation mitigationen
dc.titleBeam-facing material selection for mitigation of residual doses in the HEBT of IFMIF-DONESen
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublication489eb113-87ff-4681-80f6-0aa47a61ad8f
relation.isAuthorOfPublication2467cce6-f6b9-4653-a401-ac9bcebc8f13
relation.isAuthorOfPublication.latestForDiscovery489eb113-87ff-4681-80f6-0aa47a61ad8f
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