Integral cross sections of photonuclear reactions near the giant dipole resonance

The total cross sections of (γ, n) reactions were measured for 12 nuclei from45Sc to208Pb using an activational method on bremsstrahlung from a microtron with maximum energy 25 MeV. Calculations of the total cross sections were performed on the basis of a modified preequilibrium decay model. Good agreement was obtained between the experimental and computed cross sections in the mass number range 100–208. 1 figure, 3 tables, 13 references.