Monte Carlo Simulation for absorbed dose in PMMA phantom during the low-energy X-ray irradiation

Abstract

요약 AbstractThis study offered a new method to calculate absorbed dose of actual patients through Monte Carlo Simulation by using the linkage of Geant4 and DICOM, and, the experimental value of absorbed dose at the center and Geant 4 simulation result according to the depth of PMMA mock phantom were compared by using MOSEF in order to verify Geant4 calculation code. In the area where there was no air space between the irregular gap due to incomplete compression of PMMA slab, the differences were 0.46 ± 4.69 percent and -0.75 ± 5.19 percent in 15 × 15 cm 2 and 20 × 20 cm 2 respectively. Excluding the error due to incomplete compression of PMMA mock phantom, the calculation values of the Monte Carlo simulation by linkage of Geant4 and DICOM was the same.