Enhanced radiative strength in the quasi-continuum of 117Sn
  Radiative strength functions of 117Sn has been measured below the neutron separation energy using the (3He,3He'gamma) reactions. An increase in the slope of the strength functions around E_gamma= 4.5 MeV indicates the onset of a resonance-like structure, giving a significant enhancement of the radiative strength function compared to standard models in the energy region 4.5 <= E_gamma <= 8.0 MeV. For the first time, the functional form of this resonance-like structure has been measured in an odd tin nucleus below neutron threshold in the quasi-continuum region. 
U. Agvaanluvsan, A. C. Larsen, R. Chankova, M. Guttormsen, G. E.   Mitchell, A. Schiller, S. Siem, and A. Voinov