Absolute total cross section measurements for intermediate energy electron scattering: III. Ne and Ar

Abstract

Absolute total cross section measurements are presented for e--Ne and e--Ar scattering. The covered energy range spans from 100 to 3000 eV. The overall systematic uncertainty was +or-2.4%, the random uncertainty was +or-1.5% and the angular resolution error was less than 0.5%. A comparison with existing experimental and theoretical data is given. This comparison suggests that the semi-empirical data of de Heer et al (1979) for Ne are possibly overestimated by 5% at 100 eV.