A Monte Carlo Investigation in External Beam Radiotherapy
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Monte Carlo techniques have been shown to be the most accurate method of modelling radiation transport and dose deposition. With increasingly complex radiotherapy techniques being employed in the continuing fight against cancer, Monte Carlo techniques provide a de finitive method to assess the accuracy of these techniques and the accuracy of the procedures used to test them. This thesis established a method to tune a linear accelerator model, in an efficient process. This model was then employed to examine two techniques used currently in the measurement of the absolute dose for the quality assurance of individual patient IMRT plans.