Nuclear Cross-Section of Proton-Induced Reactions on Enriched [sup.48]Ti Targets for the Production of Theranostic [sup.47]Sc Radionuclide, [sup.46c]Sc, [sup.44m]Sc, [sup.44g]Sc, [sup.43]Sc, and [sup.48]V

The cross-sections of the [sup.48]Ti(p,x)[sup.47]Sc, [sup.46c]Sc, [sup.44m]Sc, [sup.44g]Sc, [sup.43]Sc, and [sup.48]V nuclear reactions were measured from 18 to 70 MeV, with particular attention to [sup.47]Sc production. Enriched [sup.48]Ti powder was deposited on an aluminum backing and the obtained targets were characterized via elastic backscattering spectroscopy at the INFN-LNL. Targets were exposed to low-intensity proton irradiation using the stacked-foils technique at the ARRONAX facility. Activated samples were measured using γ-spectrometry; the results were compared with the data int he literature and the theoretical TALYS-based values. A regular trend in the new values obtained from the different irradiation runs was noted, as well as a good agreement with the literature data, for all the radionuclides of interest: [sup.47]Sc, [sup.46c]Sc, [sup.44m]Sc, [sup.44g]Sc, [sup.43]Sc, and [sup.48]V. [sup.47]Sc production was also discussed, considering yield and radionuclidic purity, for different [sup.47]Sc production scenarios.