Isomeric yield ratios for the natAg(γ,xn)106m,g;104m,gAg photonuclear reactions induced by 40-, 45-, 50-, 55-, and 60-MeV bremsstrahlung

We have determined the isomeric yield ratios for the isomeric pairs 106m,gAg and 104m,gAg produced on natural silver target nuclei in the bremstrahlung energy region from 40- to 60-MeV. The measurements were carried out by the activation method in combination with direct γ-spectrometry. The necessary corrections were made to improve the accuracy of the experimental results. The present yield ratios measured at 40, 45, 50, 55, and 60 MeV for the 106m,gAg isomeric pair are 0.019 ± 0.002, 0.022 ± 0.002, 0.023 ± 0.002, 0.025 ± 0.002, and 0.025 ± 0.002, and those for the 104m,gAg isomeric pair are 1.26 ± 0.12, 1.34 ± 0.12, 1.36 ± 0.12, 1.43 ± 0.12, and 1.49 ± 0.12, respectively. The obtained results are compared with those existing in literature and discussed.