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ST: Strahlen- und Medizinphysik

ST 11: Verbesserung der Bestrahlungsplanung

ST 11.8: Talk

Tuesday, March 14, 2006, 18:00–18:10, D

Verification of Monte Carlo simulations of proton dose distributions in biological media — •Hanitra Szymanowski, Simeon Nill, and Uwe Oelfke — DKFZ Heidelberg

Monte Carlo codes are a tool of choice for the validation of dose calculation for proton therapy, provided that the physics of particle transport in biological tissue is appropriately simulated. Hence a thorough validation of the performances of a Monte Carlo code using measured data or exact analytical predictions is needed prior to the use of the code as a benchmarking tool. Coulomb interactions have a predominant effect on the dose deposition pattern of protons used in radiotherapy. In this work we suggest a quantitative method to verify the ability of the Monte Carlo code GEANT4 at simulating Coulomb interactions of protons in water and in biological materials.