Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf

The dipole strength in the nucleus 196-Pt was investigated using two different experimental methods. The photon spectrum from the deexcitation of a state after cold neutron capture in 195-Pt is influenced by the dipole strength and nuclear level density in 196-Pt as is also the gamma-ray spectrum from photon scattering on 196-Pt. In a combined analysis of data from the research reactor in Budapest and the bremsstrahlung facility at the ELBE accelerator in Dresden, the GEANT4 code was used to calculate detector response and efficiency. Also the influence of non-nuclear scattered photons was determined and allows us to take into account the continuum of unresolved states. The statistical code gammaDEX was used to estimate branching ratios and compare simulated and experimental spectra. Using information from both experiments it was possible to obtain a temperature parameter of 600\,keV for the constant temperature level density model. For the dipole strength a small extra strength over tail of the Giant Dipole Resonance in the region below the neutron energy separation was found.