Evolution of level density step structures from Fe-56, Fe-57 to Mo-96, Mo-97
Evolution of level density step structures from Fe-56, Fe-57 to Mo-96, Mo-97
Level densities up close to the neutron binding energy have been extracted from primary $\ensuremath{\gamma}$ spectra for $^{56,57}\mathrm{Fe}$ and $^{96,97}\mathrm{Mo}$ nuclei using $(^{3}\mathrm{He},\ensuremath{\alpha}\ensuremath{\gamma})$ and $(^{3}\mathrm{He},^{3}\mathrm{He}\ensuremath{'}\ensuremath{\gamma})$ reactions on $^{57}\mathrm{Fe}$ and $^{97}\mathrm{Mo}$ targets. It is shown that statistical spectroscopy provides a useful tool in this mass region. Apparent step structures in the …