Electronic and nuclear stopping cross sections in carbon for light mass ions of 4.5 to 46 keV energy

The mean stopping cross section, S, of thin carbon foils has been determined for light mass particles with 3 ≦ Z1, ≦ 18. The dependence of stopping cross section on foil thickness and scattering angle is reported. The energy of the incident ions ranged from 4.5 to 46 ke V. The electronic, Se, and nuclear, Sn, stopping cross sections were deduced from the experimentally determined mean stopping cross section at zero output angle, {article}{empty}{document}S(0)̄ \, = \,Sₑ \, + \,Sₙ \,(0)̄{document} , by putting {article}{empty}{document}Sₑ \, = \, limt → 0 \,S(0,\,t)̄{document} where t is the foil thickness. The reported values of Se, are in t → 0 good agreement with previously published results. The mean nuclear stopping cross section in the forward direction is found to reach a saturation value in foils thicker than about 8 μg/cm2. The increase of S with scattering angle is parabolic at small scattering angles and linear at large scattering angles.