Abstract
The backscattering coefficients (BSCs) for semi-infinite solids of normally incident 1–4 keVelectrons and positrons are stochastically modeled and calculated by the MonteCarlo method. This paper aims at discussing the differences observed between theproperties of electrons and positrons impinging on solid targets based on theuse of the differential elastic scattering cross-section which has been obtainedusing the Bentabet and Bouarissa approximation (2006 Phys. Lett. A 355 390).A new mathematical equation was developed for the adjustable parameterβ of the Bentabet et al approximation and seems to be valid for other elements. Both electronand positron BSC simulated results show good agreement with the experimental orcomputed data reported by other authors.
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