Bibliography of experimental data
Only one reference Levkovskij (1991) explicitly contains cross section values for the 72Ge(p,n)72As reaction in the range 7.7 - 29.5 MeV. Three publications were found in which formation of 72As by proton irradiation of natGe targets are discussed: Basile et al. (1981), Horiguchi et al. (1983), and Spahn et al. (2000). By normalization for the target isotope abundance correct cross sections for the 72Ge(p,n)72As reaction can be derived up to the threshold of the73Ge(p,2n)72As reaction at 12.086 MeV. They are represented in Fig. All data. The Pade functions with 7 parameters were fitted to 44 selected data points with a χ2 = 1.42 and covering the energy range up to 30 MeV as shown in Fig. Recommended. The uncertainties (including 4% systematic uncertainty) start at 32% from 5 to 7 MeV, drop to 15% at 8 MeV and continue to decrease to around 5 % at the highest energy..
V.N. Levkovskij, Cross-sections of medium mass nuclide activation (A=40-100) by medium energy protons and alpha-particles (E=10-50 MeV), Inter Vesi Moscow, (1991), USSR;
EXFOR: A0510
D. Basile, C. Birattari, M. Bonardi, L. Goetz, E. Sabbioni, A. Salomone, Excitation functions and production of arsenic radioisotopes for environmental toxicology and biomedical purposes, Applied Radiation and Isotopes, 32 (1981) 403;
EXFOR: A0190
T. Horiguchi, H. Kumahora, H. Inoue, Y. Yoshizawa, Excitation function of Ge(p,xnyp) reactions and production of 68Ge, Applied Radiation and Isotopes, 34 (1983) 1531;
EXFOR: E1968
I. Spahn, G.F. Steyn, F.M. Nortier, H.H. Coenen, S.M. Qaim, Excitation functions of natGe(p,xn)71,72,73,74As reactions up to 100 MeV with a focus on the production of 72As for medical and 73As for environmental studies, Applied Radiation and Isotopes, 65 (2007) 1057;
EXFOR: D0454
Last updated: Aug.
2022.