MONTE-CARLO CALCULATION METHOD ON LOW-ENERGY-ELECTRON SCATTERING IN POLYBASIC MEDIUM

A novel Monte Carlo method of simulating low energy electron (LEE) sca ttering in polybasic medium is presented. The Mott cross section is ad opted to describe the elastic scattering of LEE,;ind a mean cross sect ion idea is proposed instead of usual determination of the scattering center. The Joy''s modified Bethe equation is used to calculate energy loss of LEE. The scattering processes of LEE in bulk PMMA have been s imulated. And the electron backscattering coefficients, the electron i nteraction range and energy dissipation distribution of LEE in bulk PM MA have been calculated and compared with those calculated by the meth od of determining scattering center.