Photonuclear Reaction of Iodine-129 with Laser-Compton ScatteringGamma-Rays Using Nd:YVO4 Laser and Electron Storage Ring

摘要

A photonuclear reaction cross section of iodine-129 was measured using a polarized laser-Compton scattering gamma-ray beam in an energy range from 13.9 to 19.7 MeV. The maximum cross section was evaluated to be 220 mbarn ± 50 % at a photon energy of 15.9 MeV ± 4 %. We did not observe any appreciable difference in the cross sections for linearly and circularly polarized gamma-ray beams, considering the limits of experimental error.