Electron scattering cross sections for SF₆ and SF₅CF₃ at intermediate and high energies (100-10000 eV)

Limao-Vieira, P.; Blanco, F.; Oller, J. C.; Munoz, A.; Perez, J. M.; Vinodkumar, M.; Garcia, G. and Mason, N. J. (2005). Electron scattering cross sections for SF₆ and SF₅CF₃ at intermediate and high energies (100-10000 eV). Physical Review A, 71(3) 032720-1.

DOI: https://doi.org/10.1103/PhysRevA.71.032720

Abstract

A modified experimental apparatus with improved angular resolution and stability has been used to measure the total electron scattering cross sections for SF₆ and SF₅CF₃ in the energy range of 100-5000 eV. A detailed analysis of the experimental error sources is provided. The experimental results are compared with integral elastic and inelastic cross sections calculated using the independent atom model approximation and a modified single-center additivity rule for electron energies ranging from 1 to 10,000 eV. The accuracy of these approximations method is discussed through a comparison with the experimental results. Previous cross-sectional data for SF₆ are compared with the present theoretical and experimental results. For SF₅CF₃, we present the first electron scattering cross-sectional data for the 100-10,000 eV energy range, as well as the first empirical determination of the molecular polarizability.

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