Evaluation of X-ray spectra transmitted by different concrete compositions

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dc.contributor.authorCosta P.R.
dc.contributor.authorVieira D.V.
dc.contributor.authorNaccache V.K.
dc.contributor.authorFerreira K.R.
dc.contributor.authorPriszkulnik S.
dc.date.accessioned2024-03-13T00:56:01Z
dc.date.available2024-03-13T00:56:01Z
dc.date.issued2015
dc.description.abstract© 2015 Elsevier Ltd.Additional shielding material must frequently be incorporated to medical facilities in order to comply with radiation protection requirements when using radiation sources. Typical materials for shielding walls, floor and ceiling are the lead, concrete and barite. In the present work, a group of four concrete compositions was evaluated by using broad beam transmission curves and transmitted spectra in the range of X-ray energies used for diagnostic imaging. The studied concretes were classified as ordinary concrete (Type C), concrete with addition of hematite (Types H1 and H2) and concrete with addition of steel grit (Type S). Concrete with steel grit shows be more efficient as shielding material of the three heavy types concrete studied. The two mixes of concrete and hematite are practically equivalent from the radioprotection point of view. However, the granulation difference between them might be important to other fields, as shielding is not the only function of concrete in the building structure. Although they are not as efficient as concrete with steel grit, they may be a shielding option in a facility with low shielding requirement.
dc.description.firstpage349
dc.description.lastpage354
dc.description.volume116
dc.identifier.doi10.1016/j.radphyschem.2015.03.040
dc.identifier.issn1879-0895
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36132
dc.relation.ispartofRadiation Physics and Chemistry
dc.rightsAcesso Restrito
dc.subject.otherlanguageConcrete
dc.subject.otherlanguageDiagnostic X-rays
dc.subject.otherlanguageShielding material
dc.subject.otherlanguageTransmission curve
dc.subject.otherlanguageX-ray spectra
dc.titleEvaluation of X-ray spectra transmitted by different concrete compositions
dc.typeArtigo
local.scopus.citations6
local.scopus.eid2-s2.0-84944165349
local.scopus.subjectBuilding structure
local.scopus.subjectConcrete composition
local.scopus.subjectDiagnostic imaging
local.scopus.subjectProtection requirements
local.scopus.subjectShielding materials
local.scopus.subjectTransmission curve
local.scopus.subjectTransmitted spectra
local.scopus.subjectX-ray spectra
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84944165349&origin=inward
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