Excitation functions of proton and deuteron induced reactions on iron and alpha-particle induced reactions on manganese in the energy region up to 25 MeV

Excitation functions were measured by the stacked-foil technique for natFe(p,xn)56Co, natFe(p,xn)57Co, 58Fe(p,n)58Com+g, 57Fe(p,α)54Mn, natFe(d,xn)58Com+g, 56Fe(d,2n)56Co, 56Fe(d,α)54Mn, 55Mn(α,n)58Com+g, and 55Mn(α,2n)57Co reactions from the respective thresholds to 14.12 MeV in work with protons, 12.97 MeV with deuterons, and 25.52 MeV with alpha particles. The radioactivity of the activation products was determined by high resolution γ-ray spectroscopy. Statistical model calculations taking into account the precompound effects were performed for all the reactions, using a consistent set of model parameters. The experimental excitation functions of the proton and alpha-particle induced reactions are described within 10 to 15 percent by the calculation over the whole investigated energy range. The shapes of the excitation functions of the deuteron induced reactions are also reproduced well by the model calculation. However, a reduction factor (R=0.56) is needed to take account of the direct breakup process and, thereby, to obtain good agreement between the experimental data and model calculations