APPLICATIONS OF COUPLED SCRAPER-RTS&T CODE IN RADIATION THERAPY

The paper describes the main features of the new version of coupled SCRAPER-RTS&T code system. The SCRAPER [1] code performs the numerical simulation of the beam transport in circle accelerators using secondorder matrix methods. The RTS&T [2] code (Radiation Transport Simulation and Isotopes Transmutation Calculation) was assigned for detailed Monte Carlo simulation of many particle types (γ, e ± , p, n, π ± , K ± , LL 0 , antinucleons, muons, ions and etc.) transport in a complex 3D geometry’s with composite materials in the energy range from a fraction eV to 20 TeV and calculation of particle fluences, radiation field functionals and isotopes transmutation problem as well. A direct using of evaluated nuclear data libraries (ENDF/B-VI(HE), JENDL, FENDL, BROND etc.) to particle transport and isotopes transmutation modeling in low and intermediate energy regions is the general idea of RTS&T code. It is possible to use the coupled SCRAPER-RTS&T code to simulate of clinical beam characteristics, for radiotherapy treatment planning and radiation safety analysis. The comparison between calculated and measured data is presented.