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Radiation Protection Dosimetry Advance Access originally published online on October 19, 2007
Radiation Protection Dosimetry 2008 128(4):427-431; doi:10.1093/rpd/ncm442
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© The Author 2007. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Evaluation of specific absorbed fractions from internal photon sources in ORNL analytical adult phantom

Hashem Miri Hakimabad* and Lalle Rafat Motavalli

Physics Department, School of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Islamic Republic of Iran

* Corresponding author: mirihakim{at}ferdowsi.um.ac.ir

Received February 18, 2007, amended July 17, 2007, accepted September 3, 2007

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.


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