Characterization and determination of the gamma radiation attenuation coefficient in the W20Cu3Ni metallic alloy to be applied in the transport of radioactive substances

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dc.contributor.authorSOUZA, ARMANDO C.pt_BR
dc.contributor.authorARISTONE, FLAVIOpt_BR
dc.contributor.authorSANTANA, ALEXANDRE N.pt_BR
dc.contributor.authorMIYAI, ADALTONpt_BR
dc.contributor.authorCIONE, FRANCISCO C.pt_BR
dc.contributor.authorTSAKIROPOULOS, PANOSpt_BR
dc.contributor.authorROSSI, JESUALDO L.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2023-03-14T19:45:04Z
dc.date.available2023-03-14T19:45:04Z
dc.date.issued2022pt_BR
dc.description.abstractThe final responsibility of civil society protection regarding the nuclear sector in every country is a local/national governmental duty. The way this task is wielded changes little from country to country. The principal concern is to reduce the exposure of people to sources that eventually emit radiation. The shield used for this purpose is called biological shielding. The W20Cu3Ni metallic alloy was obtained using W powder as a matrix and the infiltrating elements Cu and Ni and subjected to sintering processes at different temperatures. All samples were analyzed by X-ray diffractometry, scanning electron microscopy (SEM). The main objective of this work is to determine the gamma radiation attenuation coefficients of the W20Cu3Ni metallic alloy subjected to different sintering temperatures. The determination of the alloy attenuation coefficient was performed using an experiment set up with a source of cobalt (Co-60), which emits characteristic energy peaks of 1.173 MeV and 1.332 MeV. The gamma rays are focused to reach the detector and the resulting photons are counted for 1800 s in three situations. Initially, the gamma rays are directed to the detector in a free path. The second experiment consists of using pure tungsten to shield the radiation, i.e., all gamma rays have to pass through it before entering the detector. Finally, the metallic alloy replaces tungsten, and the same measurements are done. Despite the amount of copper and nickel present in the final sample, the results obtained for this new metallic alloy are very satisfactory. The measurements of the gamma attenuation coefficient in the W20Cu3Ni metallic alloy at different temperatures, showed significant results, ie, a difference between 7.08% and 14.63% lower than the attenuation coefficient of pure tungsten used as a reference. Therefore, this new W20Cu3Ni metal alloy has excellent potential for application in shielding systems and in the transport of substances with high nuclear activity used in the production of radioisotopes and radiopharmaceuticals.pt_BR
dc.format.extent951-960pt_BR
dc.identifier.citationSOUZA, ARMANDO C.; ARISTONE, FLAVIO; SANTANA, ALEXANDRE N.; MIYAI, ADALTON; CIONE, FRANCISCO C.; TSAKIROPOULOS, PANOS; ROSSI, JESUALDO L. Characterization and determination of the gamma radiation attenuation coefficient in the W20Cu3Ni metallic alloy to be applied in the transport of radioactive substances. <b>Journal of Materials Research and Technology</b>, v. 21, p. 951-960, 2022. DOI: <a href="https://dx.doi.org/10.1016/j.jmrt.2022.09.083">10.1016/j.jmrt.2022.09.083</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33870.
dc.identifier.doi10.1016/j.jmrt.2022.09.083pt_BR
dc.identifier.issn2238-7854pt_BR
dc.identifier.orcid0000-0002-8304-9939pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8304-9939
dc.identifier.percentilfi84.1pt_BR
dc.identifier.percentilfiCiteScore82.25pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33870
dc.identifier.vol21pt_BR
dc.relation.ispartofJournal of Materials Research and Technologypt_BR
dc.rightsopenAccesspt_BR
dc.subjectattenuation
dc.subjectmetals
dc.subjectalloys
dc.subjecttungsten
dc.subjectradioactive materials
dc.subjecttransport
dc.titleCharacterization and determination of the gamma radiation attenuation coefficient in the W20Cu3Ni metallic alloy to be applied in the transport of radioactive substancespt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorJESUALDO LUIZ ROSSI
ipen.autorFRANCISCO CARLOS CEONI
ipen.codigoautor502
ipen.codigoautor8789
ipen.contributor.ipenauthorJESUALDO LUIZ ROSSI
ipen.contributor.ipenauthorFRANCISCO CARLOS CEONI
ipen.date.recebimento23-03
ipen.identifier.fi6.4pt_BR
ipen.identifier.fiCiteScore8.5pt_BR
ipen.identifier.ipendoc29504pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi6.000 ou mais
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublicationc30c7f95-0303-41bd-aa41-1fc8c12ec2ab
relation.isAuthorOfPublication458cd889-1f0c-4474-9669-feef373dcd21
relation.isAuthorOfPublication.latestForDiscovery458cd889-1f0c-4474-9669-feef373dcd21
sigepi.autor.atividadeROSSI, JESUALDO L.:502:730:Npt_BR
sigepi.autor.atividadeCIONE, FRANCISCO C.:8789:730:Npt_BR
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