摘要
This work determined a new Monte Carlo code(FLUKA) that can be used to calculate the dosimetric characteristics of seed sources. Dosimetric parameters(dose rate constant, radial dose function, and anisotropy function) of model 6711125 I seed source were calculated with FLUKA. The results were compared to the relative data recommended by AAPM TG43U1: dose rate constant with FLUKA was in agreement with 2.041%;radial dose functions with FLUKA for distances ranging from 0.5 cm to 10 cm, the deviation was less than 5%.Therefore the FLUKA code can be used to calculate the dosimetric characteristics of seed sources.
This work determined a new Monte Carlo code（FLUKA） that can be used to calculate the dosimetric characteristics of seed sources. Dosimetric parameters（dose rate constant, radial dose function, and anisotropy function） of model 6711 ^125I seed source were calculated with FLUKA. The results were compared to the relative data recommended by AAPM TG43U1： dose rate constant with FLUKA was in agreement with 2.041%;radial dose functions with FLUKA for distances ranging from 0.5 cm to 10 cm, the deviation was less than 5%.Therefore the FLUKA code can be used to calculate the dosimetric characteristics of seed sources.
基金
Supported by Hunan Province Key Laboratory of special projects(No.2008TP4009-2)
