Skobeltsyn Institute of Nuclear Physics
Lomonosov Moscow State University

Yields of photonuclear reactions on isotope 181Ta were measured on the bremsstrahlung photon beam with maximum energy 67.7 MeV using gamma-activation analysis. Cross-sections of photonucleon reactions on 181Ta were calculated by means of TALYS program and combined model. Measured yields are compared to the yields calculated relying on cross-sections measured in the experiments on quasimonochromatic and bremsstrahlung photons. Spectra of neutrons emitted by 181Ta nucleus exited by photons with energies up to 70 MeV were calculated by means of TALYS program and combined model.