Evaluation of Skin and Organ Dose of Patients Caused by Computed CT and Comparison with Monte Carlo Simulation Software GEANT4 (GATE)

Today, the use of CT scan as a type of diagnostic tool has increased dramatically. Therefore, controlled use and in accordance with protective regulations in order to reduce the harmful effects of radiation, it is necessary. The purpose of this study was to measure the dose received by patients in computed CT scan protocols and compare it with Monte Carlo simulation using GEANT4 software. Radiation parameters were collected from 11 patients referred to Tohid Hospital in Sanandaj to measure DLP quantity in common protocols. In this study, DLP values for Chest Abdomen protocol were measured and compared with simulation values. Our results show Monte Carlo software outputs experimental data well and is a good benchmark for this software. Thus, the simulated and measured doses agreed well.