Validation of GEANT4 monte carlo simulation code for 6 MV varian linac photon beam

الملخص EN

The head of a clinical linear accelerator based on the manufacturer’s detailed information is simulated by using GEANT4.

Percentage Depth Dose (PDD) and flatness symmetry (lateral dose profiles) in water phantom were evaluated.

Comparisons between experimental and simulated data were carried out for two field sizes; 5 × 5, and 10 × 10 cm2.

The obtained results indicated that GEANT4 code is a promising and validated Monte Carlo program for using in radiotherapy applications.