Studies of some isomeric yield ratios produced with bremsstrahlung

The experimental isomeric ratios for 52m,gMn, 86m,gY, 87m,gY, 89m,gZr, 110m,gIn, 111m,gIn, 112m,gIn, 152m1,gPm, 152m2,m1Eu, 162m,gHo, 164m,gHo and 178m,gLu measured by the activation technique from different targets in (γ, xnp) reactions (x≤3) at the bremsstrahlung end-point energy of 43 MeV are presented. The predictions of calculations performed by means of compound nucleus particle evaporation and final γ-deexcitation were critically discussed. The importance of inclusion in the calculations of nonequilibrium particle emission and an adequate γ-decay mode of isomeric nuclei was considered for some of the reactions investigated