Аннотация:n this work, experiments with a beam from the MT-25 microtron at bremsstrahlung end-point energiesof 10–23 MeV were carried out using the γ activation method. Theoretical results based on TALYS-2.0 withstandard parameters and a combined model of photonucleon reactions were compared with experimental valuesof relative yields. Experimental data in the energy range 19–23 MeV can be described with the combined modelof photonucleon reactions due to the inclusion of isospin splitting of the giant dipole resonance.