Differential, integral, and momentum-transfer cross sections for elastic electron scattering by neon: 5 to 100 eV

Abstract

Relative elastic-scattering differential cross sections were measured in the 5-100-eV impact energy and 10\ifmmode^\circ\else\textdegree\fi{}-145\ifmmode^\circ\else\textdegree\fi{} angular ranges. Normalization of these cross sections was achieved by utilizing accurate total electron-scattering cross sections. A phase-shift analysis of the angular distributions in terms of real phase shifts has been carried out. From the differential cross sections we obtained momentum-transfer cross sections and established the value of the critical energy and angle (associated with the lowest value of the differential cross section) as 62.5\ifmmode\pm\else\textpm\fi{}2.5 eV and 101.7\ifmmode^\circ\else\textdegree\fi{}\ifmmode\pm\else\textpm\fi{}1.5\ifmmode^\circ\else\textdegree\fi{}, respectively. The present phase shifts, the critical parameters, and differential, integral, and momentum-transfer cross sections are compared to previous experimental and theoretical results. The error associated with the present data is about 10%.