title: Positron backscattering from solid targets: Modeling of scattering processes via various approaches.
abstract: Monte Carlo simulation of 1-4keV positron backscattering from semi-infinite solid targets ranging from Be (z=4) to Au (z=79) with normal angle of incidence is here reported. In our study, the elastic and inelastic scattering cross sections are modeled by using various approaches based on either a classical or a quantum mechanical treatment. Calculations of positron backscattering coefficient are then reported for the solid targets of interest. The results obtained show a fairly good agreement with the data available in the literature. The dependence of the positron backscattering coefficient versus the atomic number of the solid target of interest has been investigated. In this respect, polynomial functions are proposed which does not require any recourse to Monte Carlo calculations.
authors.affiliation: Materials and Electronic Systems Laboratory (LMSE), University of Bordj Bou Arreridj, 34000 Bordj Bou Arreridj, Algeria.
authors.forename: B
authors.initials: B
authors.lastname: Kribaa
authors.affiliation: Materials and Electronic Systems Laboratory (LMSE), University of Bordj Bou Arreridj, 34000 Bordj Bou Arreridj, Algeria.
authors.forename: Z
authors.initials: Z
authors.lastname: Rouabah
authors.affiliation: CEA, LIST, F-91191 Gif-sur-Yvette, France.
authors.forename: C Le
authors.initials: CL
authors.lastname: Loirec
authors.affiliation: Université de Bordeaux, CNRS/IN2P3, Centre d'Etudes Nucléaires de Bordeaux-Gradignan (CENBG), France.
authors.forename: C
authors.initials: C
authors.lastname: Champion
authors.affiliation: Laboratory of Materials Physics and its Applications, University of M'sila, 28000 M'sila, Algeria. Electronic address: n_bouarissa@yahoo.fr.
authors.forename: N
authors.initials: N
authors.lastname: Bouarissa
keywords: Elastic cross sections; Inelastic cross sections; Monte Carlo simulation; Positron backscattering