Proton reaction cross sections have been measured for targets of natural isotopic abundance of the following elements and compounds: H, Be, C, Al, Fe, Cu, Ge, Sn, Pb, H2O, B4C and NaI. Data for proton energies between 220 and 570 MeV have been obtained with two types of transmission-counter assembly. The total errors are of the order of ± 3 %, which is a factor of three better than existing measurements in this energy region. A slight increase of the reaction cross sections with energy is observed for most of the elements studied. The results interpreted in terms of the semi-classical theory of reaction cross section as function of energy clearly demonstrate the onset of pion-production above 250 MeV. © 1972.
Renberg, P. U., Measday, D. F., Pepin, M., Schwaller, P., Favier, B., & Richard-Serre, C. (1972). Reaction cross sections for protons in the energy range 220-570 MeV. Nuclear Physics, Section A, 183(1), 81–104. https://doi.org/10.1016/0375-9474(72)90932-3