Total Cross Sections of Na Scattered by Different Gases

Abstract

By using a high resolution molecular beam scattering apparatus the total cross sections of Na in collision with CO, NO, CO₂, C₂H₂ and CH₄ have been measured. All the necessary corrections to the experimental data have been applied. The experimental data have been compared with the theoretical values obtained by using Massey-Mohr expression and Slater-Kirkwood and London dispersion formulae for dispersion forces. It is seen that the agreement between the experimental and theoretical total cross sections is fairly good for the complicated collision partners like CO₂, C₂H₂ and CH₄.