TOTAL CROSS-SECTIONS FOR ELECTRON-SCATTERING BY POLYATOMIC-MOLECULES AT 10-1000 EV - H2S, SIH4, CH4, CF4, CCL4, SF6, C2H4, CCL3F, CCLF3, AND CCL2F2

A model complex optical potential (composed of static, exchange, polarization, and absorption terms) is employed to calculate the total (elastic and inelastic) electron-atom scattering cross sections from the corresponding atomic wave function at the Hartree-Fock level. The total cross sections for electron scattering by their corresponding molecules (H2S, SiH4, CH4, CF4, CCl4, SF6, C2H4, CCl3F, CClF3, and CCl2F2) are obtained by the use of the additivity rule over an incident energy range of 10-1000 eV. The qualitative molecular results are compared with experimental data and other calculations wherever available; good agreement is obtained in intermediate- and high-energy regions. © 1995 The American Physical Society.