Measurements of the stopping forces for heavy ions in Ge, Ag and Au using novel ‘polka-dot’ detectors

Abstract

Measurements of the stopping forces for 14C, 14N and 16O ions in Ge and Au, for 14N and 19F ions in Ag, as well as for 19F ions in Au have been made, respectively. A novel technique, reported recently, using PIN diodes coated directly with the stopping medium in a polka dot pattern was used. This provided a set of precise, self-consistent measurements on the same stopping medium. Results show small but significant deviations from SRIM stopping predictions and are also compared to a recently-developed empirical stopping force predictor.