Determination of uncertainties associated to the in vivo measurement of iodine-131 in the thyroid

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dc.creatorBernardo Maranhão Dantas
dc.creatorF. F. Lima
dc.creatorA. L. Dantas
dc.creatorE. A. Lucena
dc.creatorRodrigo Modesto Gadelha Gontijo
dc.creatorC. B. Carvalho
dc.creatorC. Hazin
dc.date.accessioned2023-08-02T19:27:56Z
dc.date.accessioned2025-09-08T23:42:07Z
dc.date.available2023-08-02T19:27:56Z
dc.date.issued2016
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1016/j.apradiso.2016.04.007
dc.identifier.issn09698043
dc.identifier.urihttps://hdl.handle.net/1843/57378
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofApplied Radiation and Isotopes
dc.rightsAcesso Restrito
dc.subjectGlândula Tireoide
dc.subjectCompostos de Iodo
dc.subject.otherMeasurement uncertainty
dc.subject.otherIn vivo measurement
dc.subject.otherIodine-131
dc.subject.otherThyroid
dc.titleDetermination of uncertainties associated to the in vivo measurement of iodine-131 in the thyroid
dc.typeArtigo de periódico
local.citation.epage4
local.citation.spage1
local.citation.volume113
local.description.resumoIntakes of radionuclides can be estimated through in vivo measurements, and the uncertainties asso ciated to the measured activities should be clearly stated in monitoring program reports. This study aims to evaluate the uncertainties of in vivo monitoring of iodine 131 in the thyroid. The reference values for high-energy photons are based on the IDEAS Guide. Measurements were performed at the In VivoMonitoring Laboratory of the Institute of Radiation Protection and Dosimetry (IRD) and at the Internal Dosimetry Laboratory of the Regional Center of Nuclear Sciences (CRCN-NE). In both institutions, the experiment was performed using a NaI(Tl) 3′′3″ scintillation detector and a neck-thyroid phantom.Scattering factors were calculated and compared in different counting geometries. The results show that the technique produces reproducibility equivalent to the values suggested in the IDEAS Guide and measurement uncertainties is comparable to international quality standards for this type of in vivo monitoring.
local.identifier.orcid0000-0001-6479-3087
local.publisher.countryBrasil
local.publisher.departmentMED - DEPARTAMENTO DE ANATOMIA E IMAGEM
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0969804316301300?via%3Dihub

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