Water-equivalence of gel dosimeters for radiology medical imaging

dc.creatorVelásquez, J. [Univ Mayor, Escuela Tecnol Med, Fac Ciencias, Santiago, Chile]
dc.creatorValente, M.
dc.creatorVedelago, J.
dc.creatorChacon, D.
dc.creatorMattea, F.
dc.creatorPérez, P.
dc.date.accessioned2020-04-08T14:11:55Z
dc.date.accessioned2020-04-13T18:12:39Z
dc.date.accessioned2022-10-18T18:40:50Z
dc.date.available2020-04-08T14:11:55Z
dc.date.available2020-04-13T18:12:39Z
dc.date.available2022-10-18T18:40:50Z
dc.date.created2020-04-08T14:11:55Z
dc.date.created2020-04-13T18:12:39Z
dc.date.issued2018
dc.identifierValente, M., Vedelago, J., Chacón, D., Mattea, F., Velásquez, J., & Pérez, P. (2018). Water-equivalence of gel dosimeters for radiology medical imaging. Applied Radiation and Isotopes, 141, 193-198.
dc.identifier0969-8043
dc.identifierhttps://doi.org/10.1016/j.apradiso.2018.03.005
dc.identifierhttp://repositorio.umayor.cl/xmlui/handle/sibum/6142
dc.identifierDOI: 10.1016/j.apradiso.2018.03.005
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4453985
dc.description.abstractInternational dosimetry protocols are based on determinations of absorbed dose to water. Ideally, the phantom material should be water equivalent; that is, it should have the same absorption and scatter properties as water. This study presents theoretical, experimental and Monte Carlo modeling of water-equivalence of Fricke and polymer (NIPAM, PAGAT and itaconic acid ITABIS) gel dosimeters. Mass and electronic densities along with effective atomic number were calculated by means of theoretical approaches. Samples were scanned by standard computed tomography. Photon mass attenuation coefficients and electron stopping powers were examined. Theoretical, Monte Carlo and experimental results confirmed good water-equivalence for all gel dosimeters. Overall variations with respect to water in the low energy radiology range (up to 130 kVp) were found to be less than 3% in average.
dc.languageen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
dc.sourceAppl. Radiat. Isot., NOV 2018. 141: p. 193-198
dc.subjectChemistry, Inorganic & Nuclear; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging
dc.titleWater-equivalence of gel dosimeters for radiology medical imaging
dc.typeArtículos de revistas


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