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Monte Carlo characterization of the M‐19 high dose rate Iridium‐192 brachytherapy source
Author(s) -
Medich David C.,
Munro John J.
Publication year - 2007
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2733809
Subject(s) - monte carlo method , brachytherapy , dosimetry , physics , task group , photon , nuclear medicine , dose rate , computational physics , medical physics , nuclear physics , optics , mathematics , statistics , radiation therapy , medicine , engineering , radiology , engineering management
The MCNP5 Monte Carlo code was used to simulate the dosimetry of an M‐19 iridium‐192 high dose rate brachytherapy source in both air/vacuum and water environments with the in‐air photon spectrum filtered to remove low‐energy photons below δ = 10 keV . Dosimetric data was organized into an away‐along table and was used to derive the updated AAPM Task Group Report No. 43 (TG‐43U1) parameters includingS K ,D ̇ ( r , θ ) , Λ ,g L ( r ) , F ( r , θ ) ,φ an ( r ) , andφ ¯ anand their respective statistical uncertainties.
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