DIFFERENT MODELLING OF ELECTRON TRANSPORT IN MONTE CARLO DOSE CALCULATION IN RADIATION THERAPY

In this work, we examined different manners for modeling of electron transport through material domains of accelerator configuration that are based on two numerical algorithms (marked as full-physics and reduced-physics in Monte Carlo simulation). When the reduced-physics algorithm has used, the elapsed time of computer processor unit has decreased in relation to the full-physics algorithm for the simulation of nuclear particle tracking through complex geometry configuration of material zones. The accurate level of dose calculation was similar for both of algorithms. Examinations of different modeling are carried out by Monte Carlo code FOTELP (RSIC Code package CCC-581), updated in last year. Key words: electron beam, Monte Carlo, radiotherapy, depth absorbed dos