title: Evaluation of specific absorbed fractions from internal photon sources in ORNL analytical adult phantom.
abstract: To design a diagnostic or therapeutic irradiation programme, there is a need to estimate the absorbed dose. In this investigation, specific absorbed fractions (SAFs) were calculated based on Cristy and Eckerman's analytical adult phantom, by MCNP4C Monte Carlo code. SAFs were estimated with uncertainty <3%, for about 600 source organ-target organ pairs at 12 photon energies (these data are available at http://www.um.ac.ir/~mirihakim). Then these results were compared with Cristy and Eckerman's, which were based on direct Monte Carlo, reciprocity principle and point source kernel methods. Also, agreements and disagreements between them for different states were discussed.
authors.affiliation: Physics Department, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Islamic Republic of Iran. mirihakim@ferdowsi.um.ac.ir
authors.forename: Hashem Miri
authors.initials: HM
authors.lastname: Hakimabad
authors.forename: Lalle Rafat
authors.initials: LR
authors.lastname: Motavalli
mesh_terms: D000042:Absorption; D001822:Body Burden; D003198:Computer Simulation; D018499:Linear Energy Transfer; D008954:Models, Biological; D009010:Monte Carlo Method; D009928:Organ Specificity; D017785:Photons; D011829:Radiation Dosage; D012062:Relative Biological Effectiveness; D014915:Whole-Body Counting / Q000379:methods*