EPR dosimetry of yttria micro rods

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dc.contributor.authorSANTOS, S.C.
dc.contributor.authorRODRIGUES JUNIOR, O.
dc.contributor.authorCAMPOS, L.L.
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-07-31T11:47:46Z
dc.date.available2018-07-31T11:47:46Z
dc.date.issued2018pt_BR
dc.description.abstractThe use of rare earths (RE) as dopant of materials has led the development of advanced materials for many applications such as optical tracers, special alloys, semiconductors, as well as radiation dosimeters. The development of new dosimetric materials based on REs is a great challenge in innovation of materials. Yttria (Y2O3) presents luminescent proprieties and is a promising material for radiation dosimetry. The present paper aims to evaluate paramagnetic defects of Y2O3 rods obtained via bio-prototyping by using Electron Paramagnetic Resonance (EPR) technique at room temperature. Ceramic rods were irradiated with gamma doses from 0.001 to 150 kGy and evaluated by EPR at room temperature with X-band EPR. According to EPR results, as sintered samples exhibited an EPR signal with principal g tensor of 2.020 and maximum line width around 2.3 mT, which is ascribed to interstitial oxygen ion. Dose response behaviour exhibited two distinct dose ranges, one is from 1 to 100Gy and the second is from 0.1 to 70 kGy. Thermal annealing approaches reveal that defect centres of yttria decay significantly at high temperature. These innovative results make Y2O3 a promising material for radiation dosimetry.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 14/23621-3pt_BR
dc.format.extent263-270pt_BR
dc.identifier.citationSANTOS, S.C.; RODRIGUES JUNIOR, O.; CAMPOS, L.L. EPR dosimetry of yttria micro rods. <b>Journal of Alloys and Compounds</b>, v. 742, p. 263-270, 2018. DOI: <a href="https://dx.doi.org/10.1016/j.jallcom.2018.01.315">10.1016/j.jallcom.2018.01.315</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29000.
dc.identifier.doi10.1016/j.jallcom.2018.01.315pt_BR
dc.identifier.issn0925-8388pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7137-0613
dc.identifier.orcidhttps://orcid.org/0000-0002-6704-1910
dc.identifier.percentilfi79.78en
dc.identifier.percentilfiCiteScore92.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29000
dc.identifier.vol742pt_BR
dc.relation.ispartofJournal of Alloys and Compoundspt_BR
dc.rightsopenAccesspt_BR
dc.subjectelectron spin resonance
dc.subjectparamagnetism
dc.subjectmagnetic resonance
dc.subjectrare earths
dc.subjectdosimetry
dc.subjectceramics
dc.subjectyttrium oxides
dc.subjectceramics industry
dc.titleEPR dosimetry of yttria micro rodspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.autorORLANDO RODRIGUES JUNIOR
ipen.autorSILAS CARDOSO DOS SANTOS
ipen.codigoautor1195
ipen.codigoautor322
ipen.codigoautor6961
ipen.contributor.ipenauthorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.contributor.ipenauthorORLANDO RODRIGUES JUNIOR
ipen.contributor.ipenauthorSILAS CARDOSO DOS SANTOS
ipen.date.recebimento18-07pt_BR
ipen.identifier.fi4.175pt_BR
ipen.identifier.fiCiteScore6.7
ipen.identifier.ipendoc24787pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublicationd4d34119-a6e6-4026-9a67-7b16d8b668da
relation.isAuthorOfPublicationf72d59d1-f942-442a-b16e-8b0ba0e2b671
relation.isAuthorOfPublication6d1f35e3-57eb-471d-ae82-5f850a99e01b
relation.isAuthorOfPublication.latestForDiscovery6d1f35e3-57eb-471d-ae82-5f850a99e01b
sigepi.autor.atividadeSANTOS, S.C.:6961:330:Spt_BR
sigepi.autor.atividadeRODRIGUES JUNIOR, O.:322:330:Npt_BR
sigepi.autor.atividadeCAMPOS, L.L.:1195:330:Npt_BR
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