Effects of nonexact description of bremsstrahlung spectrum on the reconstruction of photonuclear reaction cross sections

The effects of nonexact description of the bremsstrahlung spectrum on the reconstruction of photonuclear reaction cross sections by the methods of mathematical simulation and measurement reduction are analyzed. It is shown that, within the attainable accuracies of photonuclear experiments, the inclusion of the influence of a realistic distribution of the atomic charge and of the contribution of terms of the order of $m_e$ to the amplitude of the bremsstrahlung formation process does not lead to considerable differences in reconstructed cross sections of photonuclear reactions.