Photoexcitation of 76Ge

The dipole strength of the nuclide Ge-76 was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.8 and 12.3 MeV delivered by the electron linear accelerator of high brilliance and high brightness (ELBE). We identified 210 levels up to an excitation energy of 9.4 MeV and assigned spin J = 1 to most of them. The quasicontinuum of unresolved transitions was included in the analysis of the spectra and the intensities of branching transitions were estimated on the basis of simulations of statistical gamma-ray cascades. The photoabsorption cross section up to the neutron-separation energy was determined and is compared with predictions of the statistical reaction model. The derived photon strength function is compared with results of experiments using other reactions.

Automated summary

The dipole strength of Ge-76 was investigated using bremsstrahlung generated by the electron linear accelerator of high brilliance and high brightness. A total of 210 levels were identified and most of them were assigned spin J = 1. The quasicontinuum of unresolved transitions was included in the analysis of the spectra and branching transition intensities were estimated based on simulations. The derived photon strength function was compared with results from experiments using other reactions.