Electronic stopping powers of Au, Ag, Cu, Pd and Co metals for ~19F ions at low velocity

摘要

Electronic stopping cross sections for 80-350 keV ~19F ions in Au, Ag, C, Pd and Co films were obtaiend by range measurement. Depth profiles of ~19F in these materials were measured by ~19F(p,xy)~16O resonance nuclear eaction. A proper deconvolution program was used to extract the depth distribution parameters from the experimental excitation yields curves. The elctronic stopping powers were derived through fitting the projected ranges simulated by TRIM/XLL code to the experimentally determined projected ranges. It is shown that the electronic stopping cross sections obtained in this work agree well with those claculated by using TRIM96 as well as previous experimental data and can be described by the four-parameter formulae.