The performance of a prototype device designed to evaluate quality parameters of radiological equipment

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dc.contributor.authorMURATA, CAMILA H.pt_BR
dc.contributor.authorHONDA, CRISTIANE J.C.pt_BR
dc.contributor.authorLAVINIA, NICOLAS C.pt_BR
dc.contributor.authorCALDAS, LINDA V.E.pt_BR
dc.contributor.authorMEDEIROS, REGINA B.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2019-08-08T17:49:10Z
dc.date.available2019-08-08T17:49:10Z
dc.date.issued2019pt_BR
dc.description.abstractQuality control measurements in radiological equipment are essential to verify their achievable performance standards, as average peak voltage (kVp), practical peak voltage (kVpp), exposure time, radiation dose and halfvalue layer (HVL). In a recent study, a multifunctional prototype's partial results were presented using a solidstate detector to evaluate quality parameters as kVp, exposure time and HVL of radiological equipment. In the present work, the accuracy of these measurements was improved, and dosimetric parameters were developed aiming to comply with normative requirements. The prototype board hardware was built with four sensors PIN RD100 A and a dedicated software based on their signals. In a single exposure, these signals were used in settled polynomial functions to determine kVp, kVpp, exposure time, radiation dose, dose rate and HVL. Characterization tests were undertaken at an instruments calibration laboratory and at a clinical research laboratory. A mathematical function was fitted for 50–120 kVp range, with R2 =0.999. This new algorithm allowed improving the kVp accuracy from [0.3–2.3%] to [0.03–1.5%]. The reproducibility and accuracy of the radiation dose rate reached 0.94% and 0.34%, respectively. The dose range measurements varied from 0.01 to 40 mGy. In addition, calibration tests were performed in calibration laboratory at standard traceable radiation qualities of RQR6 and RQR8. The total uncertainty associated with this calibration did not exceed 2%. In conclusion, the prototype can be considered a multifunctional non-invasive instrument appropriate to evaluate radiological equipment performance with an effective range from 50 kV to 120 kV.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDFAPESP: 08/57863-2pt_BR
dc.description.sponsorshipIDCNPq: 301335/2016-8; 573659/2008-7pt_BR
dc.format.extent131-137pt_BR
dc.identifier.citationMURATA, CAMILA H.; HONDA, CRISTIANE J.C.; LAVINIA, NICOLAS C.; CALDAS, LINDA V.E.; MEDEIROS, REGINA B. The performance of a prototype device designed to evaluate quality parameters of radiological equipment: complementary study. <b>Radiation Physics and Chemistry</b>, v. 159, p. 131-137, 2019. DOI: <a href="https://dx.doi.org/10.1016/j.radphyschem.2019.02.034">10.1016/j.radphyschem.2019.02.034</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30042.
dc.identifier.doi10.1016/j.radphyschem.2019.02.034pt_BR
dc.identifier.issn0969-806Xpt_BR
dc.identifier.orcid0000-0002-7362-2455pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7362-2455
dc.identifier.percentilfi60.153
dc.identifier.percentilfiCiteScore73.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30042
dc.identifier.vol159pt_BR
dc.relation.ispartofRadiation Physics and Chemistrypt_BR
dc.rightsopenAccesspt_BR
dc.subjectradiology
dc.subjectequipment
dc.subjectquality control
dc.subjectperformance
dc.subjectx-ray equipment
dc.subjectaccuracy
dc.subjectphotodiodes
dc.subjectcomparative evaluations
dc.subjectquantum efficiency
dc.titleThe performance of a prototype device designed to evaluate quality parameters of radiological equipmentpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorLINDA V. E. CALDAS
ipen.autorCRISTIANE JORDAO DE CARVALHO HONDA
ipen.codigoautor1495
ipen.codigoautor11605
ipen.contributor.ipenauthorLINDA V. E. CALDAS
ipen.contributor.ipenauthorCRISTIANE JORDAO DE CARVALHO HONDA
ipen.date.recebimento19-08
ipen.identifier.fi2.226pt_BR
ipen.identifier.fiCiteScore3.7
ipen.identifier.ipendoc25835pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi50.00 - 74.99
ipen.subtitulocomplementary studypt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication7f46d4f4-dfd6-4485-a767-10df5b4f4f13
relation.isAuthorOfPublicationd7e93027-32ac-4c58-b8f9-02013cee1fce
relation.isAuthorOfPublication.latestForDiscoveryd7e93027-32ac-4c58-b8f9-02013cee1fce
sigepi.autor.atividadeCALDAS, LINDA V.E.:1495:330:Npt_BR
sigepi.autor.atividadeHONDA, CRISTIANE J.C.:11605:330:Npt_BR
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