Evaluation of the mixture KNOsub(3)MnOsub(2) for radiation processing dosimetry

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dc.contributor.authorGALANTE, A.M.S.pt_BR
dc.contributor.authorCAMPOS, L.L.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL RADIATION PROTECTION DOSIMETRY ASSOCIATION, 11thpt_BR
dc.date.accessioned2014-11-17T17:58:30Zpt_BR
dc.date.accessioned2014-11-18T17:58:19Zpt_BR
dc.date.accessioned2015-04-02T05:41:26Z
dc.date.available2014-11-17T17:58:30Zpt_BR
dc.date.available2014-11-18T17:58:19Zpt_BR
dc.date.available2015-04-02T05:41:26Z
dc.date.eventoMay 23-28, 2004pt_BR
dc.description.abstractThe radiolysis of the inorganic nitrates has been shown to be complex, undergoing decomposition when exposed to gamma radiation, producing NO-2 and 02. The radiation dose is absorbed by all components present in the system, including the added substances. This mechanism has been investigated by several researchers and for different mixtures. In the present study mixtures of inorganic compounds were prepared in pellet form and its properties were evaluated by means of spectrophotometric techniques for high doses assessment. Compounds such as Ba(NO3)2, KBr and Mn02were mixed at the pure KNO 3 . The mixtures were cold pressed and sealed in polyethylene films. The dosimetric properties were evaluated related to the changes of the optical response when the pellets are exposed to gamma radiation, in the dose range between 200 and 600 kGy. The mixture containing Mn02 is the only one that presents reduction in the nitrites production rate and, consequently, larger doses can be measured before the saturation. The characteristics studied were absorption spectrum and signal stability of irradiated and non-irradiated detectors; batch reproducibility; effect of the environmental conditions and dose-response useful range. The pellets irradiated with gamma doses present the maximum wavelengths at 540 mn. The batch reproducibility is better than 98% (16). To maintain their properties the pellets should be sealed in polyethylene films and stored in ambient with low humidity. Ambient temperature between 10 and 35°C and ambient light don't affect the optical response. The obtained results indicate that this type of dosimeter can be used in radiation process applying doses from 200 to 600 kGy.
dc.event.siglaIRPA 11pt_BR
dc.identifier.citationGALANTE, A.M.S.; CAMPOS, L.L. Evaluation of the mixture KNOsub(3)MnOsub(2) for radiation processing dosimetry. In: INTERNATIONAL RADIATION PROTECTION DOSIMETRY ASSOCIATION, 11th, May 23-28, 2004, Madrid, Spain. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/15589.
dc.identifier.orcidhttps://orcid.org/0000-0001-7137-0613
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/15589pt_BR
dc.local.eventoMadrid, Spainpt_BR
dc.rightsopenAccess
dc.subjectabsorption spectrapt_BR
dc.subjectbarium nitratespt_BR
dc.subjectdose ratespt_BR
dc.subjectdosimetrypt_BR
dc.subjectgamma radiationpt_BR
dc.subjectirradiationpt_BR
dc.subjectmanganese oxidespt_BR
dc.subjectnitritespt_BR
dc.subjectoptical propertiespt_BR
dc.subjectpelletspt_BR
dc.subjectpotassium bromidespt_BR
dc.subjectpotassium nitratespt_BR
dc.subjectradiation dosespt_BR
dc.titleEvaluation of the mixture KNOsub(3)MnOsub(2) for radiation processing dosimetrypt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.autorANA MARIA SISTI GALANTE
ipen.codigoautor1195
ipen.codigoautor2181
ipen.contributor.ipenauthorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.contributor.ipenauthorANA MARIA SISTI GALANTE
ipen.date.recebimento05-02pt_BR
ipen.event.datapadronizada2004pt_BR
ipen.identifier.ipendoc10176pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationd4d34119-a6e6-4026-9a67-7b16d8b668da
relation.isAuthorOfPublication52063893-84d2-477e-a6d2-f2714be053b0
relation.isAuthorOfPublication.latestForDiscovery52063893-84d2-477e-a6d2-f2714be053b0
sigepi.autor.atividadeGALANTE, A.M.S.:2181:-1:Spt_BR
sigepi.autor.atividadeCAMPOS, L.L.:1195:28:Npt_BR
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