Volume 51, Number 3, Juillet-Septembre 2016
|Page(s)||187 - 192|
|Published online||14 September 2016|
Studying the effects of the lung mass on the absorbed dose to the lung due to the administration of 131I for therapeutic purposes
1 Department of Physics, Payame Noor University (PNU),
19395-3697, Tehran, Iran.
2 Department of Physics, School of Sciences, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran.
Accepted: 17 June 2016
131I is a radiopharmaceutical used for the treatment of advanced lung cancer, resulting in high organ doses. The effects of the lung mass on the absorbed dose to the lung due to the administration of 131I were studied in this research. For this purpose, the lung was selected as the source of 131I. Furthermore, 98 similar mathematical phantoms, only different in their lung mass, were developed. The received dose per decay of 131I for each organ was calculated using MCNPX. The results indicate that for the electrons emitted from the decay of 131I, the dose changes proportionally to the inverse of the lung mass. Considering that the participation of the electrons resulting from the decay of 131I in the amount of the lung dose outweighs the photon participation by a great deal, changes in the dose for the sum of the electrons and photons per decay are proportional to the inverse of the lung mass, as for the electrons.
Key words: Phantom / internal dosimetry / Monte Carlo / absorbed dose
© EDP Sciences 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.