Analytic simulation of the backscattering of hundreds eV positrons from elemental solids

摘要

Backscattering (Bcs) coefficients for low-energy positrons (similar to 100 eV) from elemental solids have been simulated using an analytic approach. The model is based on the use of the transport cross-sections (TCSs) and the stopping power calculated from partial wave methods and the best-fit stopping power data of Ashley, respectively. The new result is an extension of recent calculations in the medium energy range. Comparisons, when possible, with experimental and Monte-Carlo (MC) simulation data have been made. (c) 2005 Elsevier B.V. All rights reserved.