Simultaneous photo-production measurement of π and η mesons on nucleons at 700-1500 MeV

New experimental data on the total and partial photoabsorption cross sections on nuclei of deuterium and carbon are represented. Total cross sections are obtained by summing the partial cross sections for photoproduction of mesons. They are in good agreement with total cross sections obtained earlier by subtracting the background measured with an empty target. The measurements were performed at the facility GRAAL with back-scattered tagged beam γ-rays in the energy range from 700 to 1500 MeV.