Total Cross-Sections for Positrons and Electrons Colliding with N₂, CO and CO₂ Molecules

Abstract

Total cross-sections for 1.0–400 eV positrons and 1.2–403 eV electrons colliding with N₂, CO and CO₂ molecules have been measured using a retarding potential-TOF technique. Results of positron-collisions for e⁺-CO have shown clearly the Ramsauer-Townsend minimum. But the minimum was not shown clearly for e⁺-N₂ and e⁺-CO₂. These data were compared recent experimental data. Total cross-sections of electron-collisions were measured by the same technique for the comparison with those of positron-collisions, and they were compared with prior experimental data.