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 N 2 , CO and CO 2 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 + -N 2 and e + -CO 2 . 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.