Characterization of a novel material to be used as bolus in radiotherapy with electrons
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine(2022)
摘要
Features of new material to be used as bolus in external radiotherapy were determined and their performance were evaluated. The characterization was carried out using Monte Carlo methods with the Geant4 code where the Percentage Depth Dose (PDD) due to electrons was estimated. In the Monte Carlo model the linear accelerator head was included. Calculated results were experimentally validated with measurements made for 6, 9, 12 and 16 MeV electron beams. The key characteristics of the implemented material were identified, guaranteeing a low cost bolus, easy to be customized and to be used in clinical applications. In comparison with commercial ma-terials the new materials are superior from the cost to the effectiveness of their use in clinical treatments.
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关键词
Materials,Bolus,Percentage depth dose,Monte Carlo,Geant4
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