Experimental test of a scaling law for ion-molecule collisions: Ne+-D2, 1.5-3.5 keV

Abstract
Energy losses are measured for 1.5-3.5 keV Ne+ ions scattered by D2 through angles out to 5 degrees. The results show that the effective scattering mass of a molecule is a function only of the reduced scattering angle tau =E theta , in agreement with a recent scaling theorem by Sigmund (1978).