A model potential for computing total ionization cross sections of atoms and molecules by electron impact

We propose a model potential for computing total ionization cross sections atoms and molecules by electron impact. The is obtained fitting procedure using the Binary–Encounter–Bethe as starting point. present section hydrogen, carbon, nitrogen oxygen nitrogen, water, methane benzene molecules. results with our are compared first Born approximation, agreement quite good. Our show that this could be used to account channel in an electron–molecule collision calculation.