Investigation of proton-induced reactions on Germanium isotopes

The cross sections of the (70)Ge(p,gamma)(71)As and (76)Ge(p, n)(76)As reactions have been measured in the energy range relevant for the astrophysical p-process (1.6-4.4 MeV). The proton beam was provided by the Van de Graaff and cyclotron accelerators of ATOMKI. The cross section was determined with the activation method by measuring the yield of the emitted gamma-radiation following the beta-decay of the reaction products. Experimental details and preliminary results are presented.