Monte Carlo simulation and validation of the multi-leaf collimator of Varian 23EX accelerator / 南方医科大学学报

ABSTRACT

<p><b>OBJECTIVE</b>To simulate the multi-leaf collimator of Varian linear accelerator using Monte Carlo method.</p><p><b>METHODS</b>The multi-leaf collimator model was established using the DYNVMLC module of BEAMnrc and validated by comparison of Monte Carlo simulation and actual measurement results.</p><p><b>RESULTS</b>The simulation results were well consistent with the actual measurement results with a bias of less than 3%.</p><p><b>CONCLUSION</b>The multi-leaf collimator of Varian linear accelerator can be successfully modeled using Monte Carlo method for analysis of the impact of the geometric properties of the multi-leaf collimator on the dose distribution.</p>