Differential cross sections for elastic scattering of electrons from argon, neon, nitrogen and carbon monoxide

Abstract

Absolute differential elastic cross sections were measured for electrons scattered between 2 degrees and 150 degrees by static gas targets of argon, neon, nitrogen and carbon monoxide. The energy ranges were 20-800 eV for argon and nitrogen, 50-800 eV for neon and 200-800 eV for carbon monoxide. The present nitrogen cross sections agree with those of Bromberg (1974) and Jansen et al. (1976) at the higher energies and with Srivastava et al. (1975) at the lower energies. Within a relative uncertainty of 5% the isoelectronic nitrogen and carbon monoxide cross sections were equal at all angles for 500 and 800 eV. At 200 eV the nitrogen cross sections were generally 5-20% larger at angles up to 120 degrees .