Cascade-probabilistic functions for electrons. Chapter 1

Cascade-probabilistic function (CPF) for electrons with taking into account of energy losses is developed. Recommendation on CPF calculation on computer are given. Application package for CPF calculation and selection of theoretical curves are realized on BEhSM-6 and EhS-1045 on Fortran-Dubna and Fortran-4 languages. Calculations for Al, Si, Ti, Cu, Mo under E0=1-20 MeV are carried out. Calculation results show, that CPF for electrons increase in dependence on generation depth h at low E0 for all interaction number n≥1, and at n=0 decrease. During E0 increasing CPF for electrons with low h rise up to certain observation depth until maximum and then begins to goes down. With growth of n and h the maximum sifting to right and then it increases. Some peculiarities of calculation of CPF are emphasized. Energy losses contribution into CPF and radiation defects concentration are estimated. Calculation of initially knock out atoms spectra and radiation defects concentration under electron irradiation with use CPF with taking into consideration energy losses are carried out. Algebraic ratio in cascade-probabilistic method is found