Schiwietz, G.; Grande, P.L.: Stopping of protons - Improved accuracy of the UCA model. Nuclear Instruments & Methods in Physics Research B 273 (2012), p. 1-5
Open Accesn Version

Recent theoretical developments in the unitary convolution approximation (UCA) for electronic energy losses of bare and screened ions are presented. Examples are given for proton beams and rare-gas targets. For gas targets there exists a sufficient amount of experimental data on charge exchange, for pinpointing the largely unknown stopping-power contribution of electron-capture processes at low and intermediate energies