Stopping powers of Mylar, Kapton, Havar, and nickel for 0.27–1.94 MeV/amu ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$ ions, 1.27–2.07 MeV/amu ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, 0.58–1.80 MeV/amu ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, and for 0.67–1.78 MeV/amu ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ ions have been determined. Energy loss and stopping powers of Mylar were measured for ${}_{}{}^{27}{}_{}{}^{}\mathrm{Al}$, ${}_{}{}^{28}{}_{}{}^{}\mathrm{Si}$, ${}_{}{}^{31}{}_{}{}^{}\mathrm{P}$, ${}_{}{}^{32}{}_{}{}^{}\mathrm{S}$, and ${}_{}{}^{35}{}_{}{}^{}\mathrm{Cl}$ ions having energies between 7.6 and 24.6 MeV. Direct beam exposure of the foils was avoided by using a modified transmission geometry. Proton-energy loss, in the same geometry and at exactly the spot of the heavy-ion beam on the foils, was taken as a measure of foil thickness. The present data are brought together with our recent measurements of the stopping powers of the materials in this study for ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ ions. The experimental stopping powers are compared with predictions of two semiempirical scaling models, used in conjunction with Bragg’s additivity rule, and with the stopping powers obtained by the trim-89 computer code. Comparisons have also been performed with the scanty experimental data in the literature. The systematics and the deviations of the stopping powers from the calculated predictions are discussed.

• Received 2 October 1989

DOI:https://doi.org/10.1103/PhysRevB.41.3951