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Monte Carlo calculation of dose rate distributions around 192Ir wires
F Ballester1, C Hernández, J Pérez-Calatayud
1Department of Atomic, Molecular and Nuclear Physics, University of Valencia, Burjassot, Spain. facundo@evalvx.ific.uv.es
Abstract:
Monte Carlo calculations of absolute dose rate in liquid water are presented in the form of away-along tables for 1 and 5 cm 192Ir wires of 0.3 mm diameter. Simulated absolute dose rate values can be used as benchmark data to verify the calculation results of treatment planning systems or directly as input data for treatment planning. Best fit value of attenuation coefficient suitable for use in Sievert-integrals-type calculations has been derived based on Monte Carlo calculation results. For the treatment planning systems that are based on TG43 formalism we have also calculated the required dosimetry parameters.