ENERGY-LOSS OF PROTONS IN ZN - MEASUREMENTS BETWEEN 2 AND 200 KEV

The energy loss of H+ ions in polycrystalline Zn films has been determined by the transmission method in the energy range between 2 and 200 keV. Experiments in this energy range are of special interest for the study of the energy-loss mechanism in the region of the stopping-power maximum where important phase effects have been recently determined by other authors, as well as in the low-energy range where we have previously found deviations from the predicted velocity proportionality for other metallic elements. The data obtained here allow an experimental evaluation of the phase effect and provide a test of the velocity dependence for low energies at a very good level of accuracy. In addition, the experiment contributes to filling an important gap in the data due to the lack of low-energy measurements for Zn targets. © 1995 The American Physical Society.