Page 59 - Fisica In Medicina n° 1/2017
P. 59
^Äëíê~Åí=cáëáÅá= =range [0-300] mm. The fluence distributions were obtained by OCRs comparisons. In particular, simulated penumbra values showed difference smaller than 1 mm with respect to the measured ones at all depths for all collimators. Also calculated OFs showed a good agreement with measured ones (Δfixed=0,57%, ΔIRIS=0,57%).ConclusionThe MC dose calculation commissioning, concerning the source modeling and the simulation of photons energies and trajectories, was concluded reaching a high agreement with the experimental data. The comparison of calculated and measured data, for each type of dosimetric parameter considered, showed negligible deviations.50
