C. Guerrero, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, M. Pigni, -. nTOF Collaboration:
"Study of Photon Strength Function of Actinides: the Case of 235U, 238Np and 241Pu";
Journal of the Korean Physical Society, 59 (2011), S. 1510 - 1513.

Kurzfassung englisch:
The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high effciency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the first time the validity of the recommended PSF of actinides, in particular 235U, 238Np and 241Pu. Our study includes the search for resonance structures in the PSF below Sn and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.

Photon/Gamma strength functions, Pygmy, Scissor mode, nTOF, Total absorption calorimeter, TAC, Neutron capture

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