Scattering of Light Ions in the Weakly Screened Coulomb Field of Gold Nuclei

Abstract

The differential cross section for scattering of 300-2000-keV ${\mathrm{H}}^{+}$ and 300-500-keV ${\mathrm{He}}^{+}$ and ${\mathrm{Li}}^{+}$ through 3°-15° by gold targets has been measured. The targets were thin (34-220 ${\mathrm{\mu }\mathrm{g}/\mathrm{c}\mathrm{m}}^2$), vacuum-deposited polycrystalline foils. To eliminate the influence of multiple scattering, several target thicknesses were used to allow extrapolations to zero thickness. The agreement between our experimental data, theoretical predictions, and published experimental data is found to be satisfactory.