Benchmark of medical dosimetry simulation using the Grid

The practical capability of using Grid resources to perform high-precision dosimetry simulation in radiation oncology is evaluated, taking into account the peculiar demands of different treatment modalities. For this purpose extensive benchmark tests on the LHC Computing Grid (LCG) are performed, involving the calculation of dose distributions as required for clinical practice. The software architecture of the test is based on Geant4 for simulation, on AIDA for data analysis, on the LCG middleware for grid computing and on DIANE as an intermediate layer between the application software and the computing environment.