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The influence of material assignment in a patient geometry for hadron therapy had been studied using GEANT4 simulation. For the purpose of evaluating the influence of material differences, the dose distributions by proton and carbon beams were compared in a homogeneous medium for water and tissue materials, where all mass densities were normalized to 1 g/cm3. The differences were observed in the depth...
The GEANT4 Monte Carlo code provides many powerful functions for conducting particle transport simulations with great reliability and flexibility. GEANT4 has been extending the application fields for not only the high energy physics but also medical physics. In radiation therapy, patient data are usually given in DICOM format and have to be imported into a simulation as geometry. For this purpose,...
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