Experimental and Monte Carlo-simulated spectra of standard mammography-quality beams

dc.creatorDavid, MG
dc.creatorPires, EJ
dc.creatorBernal, MA
dc.creatorPeixoto, JG
dc.creatorDealmeida, CE
dc.date2012
dc.dateMAY
dc.date2014-07-30T17:32:05Z
dc.date2015-11-26T16:29:27Z
dc.date2014-07-30T17:32:05Z
dc.date2015-11-26T16:29:27Z
dc.date.accessioned2018-03-28T23:10:30Z
dc.date.available2018-03-28T23:10:30Z
dc.identifierBritish Journal Of Radiology. British Inst Radiology, v. 85, n. 1013, n. 629, n. 635, 2012.
dc.identifier0007-1285
dc.identifierWOS:000304364000018
dc.identifier10.1259/bjr/73088072
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66343
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66343
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269727
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionA spectrometric study of standard mammography-quality beams by using experimental and Monte Carlo simulation methods was carried out in this work. The qualities of these beams are described according to the International Electrotechical Commission 61267 standard and the Technical Report Series 457 International Atomic Energy Agency report. Specifically, the non-attenuated RQR-M beam series was studied. Methods: A Si-PIN diode-based spectrometer and the PENELOPE Monte Carlo code (v. 2008F1) were used for experiments and simulations, respectively. In addition, an ionization chamber was used to determine the half-value layers (HVLs) of each beam quality. The measurements were done in the mammography dosimeter calibration setup of our laboratory, and the Monte Carlo simulations reproduced such conditions. Results: The relative differences between the HVLs calculated from experimental and simulated spectra were lower than 2.4% for all the beam qualities studied. These differences are 1.2% and 3.1% when comparing the HVLs calculated from the experimental and simulated spectra to those determined by using the ionization chamber, respectively. A semi-empirical relation was found to obtain the nominal tube potential from the effective tube potential. Conclusion: According to our results, the mammography beams used in this work have energy spectra similar to clinical beams.
dc.descriptiono TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE AGOSTO DE 2015.
dc.description85
dc.description1013
dc.description629
dc.description635
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionCNPq [479906/2009-2]
dc.descriptionCAPES [078980/2010]
dc.languageen
dc.publisherBritish Inst Radiology
dc.publisherLondon
dc.publisherInglaterra
dc.relationBritish Journal Of Radiology
dc.relationBr. J. Radiol.
dc.rightsembargo
dc.sourceWeb of Science
dc.subjectX-ray-spectra
dc.subjectSilicon Pin Photodiode
dc.subjectComputer
dc.subjectDetector
dc.subjectVoltage
dc.titleExperimental and Monte Carlo-simulated spectra of standard mammography-quality beams
dc.typeArtículos de revistas


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