Quantum Beam Science, Volume 7, Issue 3
2023 September - 9 articles
Cover Story: Photons with energy totaling more than 10 MeV provide efficient treatment for deeply seated tumors but interact with the nuclei of high-Z materials constituting the head of the linac. The current study used GEANT4 to calculate the photoneutron spectrum from the medical linac. The free-in-air photoneutron spectrum from the head of the linac was simulated using the NeutronHP experimental package. Validation of the simulated model was carried out based on a comparison of simulated and measured percentage depth–dose curves from photons in the water phantom. GEANT4 may improve the accuracy of calculations of the effective dose but should be improved and optimized. In the future, it may constitute a physical basis for the prediction of the risk of radiation-induced cancer. View this paper
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Quantum Beam Sci. - ISSN 2412-382X