Role of electric and magnetic dipole strength functions in the 114Cd(gamma,gamma') and 113Cd(n, gamma) reactions


Role of electric and magnetic dipole strength functions in the 114Cd(gamma,gamma') and 113Cd(n, gamma) reactions

Massarczyk, R.; Schramm, G.; Belgya, T.; Schwengner, R.; Beyer, R.; Bemmerer, D.; Elekes, Z.; Grosse, E.; Hannaske, R.; Junghans, A. R.; Kis, Z.; Kögler, T.; Lorenz, C.; Schmidt, K.; Szentmiklosi, L.; Wagner, A.; Weil, J. L.

The distribution of the electromagnetic dipole strength below the neutron separation energy and its influence on the photon distribution after neutron capture was investigated in a twin experiment for the compound nucleus 114Cd. The experimentally deduced spectra after photon scattering on 114Cd and the neutron capture in 113Cd were analyzed in matters of electro magnetic strength function and nuclear level density. By measuring the photoabsorption cross section at the bremsstrahlung facility gammaELBE at the Helmholtz-Zentrum Dresden-Rossendorf it was possible to deduce information about the distribution of dipole strength below the neutron separation energy. The deexcitation spectrum after cold-neutron capture in 113 Cd was calculated and different magnetic dipole strength function models were tested with the help of the statistical code gammaDEX.

Keywords: Photon scattering; nuclear resonance fluorescence; strength functions; cross sections

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