PT Journal
AU n_TOF Collaboration (Guerrero, Cea
   Domingo-Pardo, C
   Tain, JL
TI Study of Photon Strength Function of Actinides: the Case of (235)U, (238)Np and (241)Pu
SO Journal of the Korean Physical Society
JI J. Korean Phys. Soc.
PY 2011
BP 1510
EP 1513
VL 59
IS 2
DI 10.3938/jkps.59.1510
LA English
DE Photon/Gamma strength functions; Pygmy; Scissor mode; n_TOF; Total absorption calorimeter; TAC; Neutron capture
AB 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 efficiency 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 (235)U, (238)Np and (241)Pu. Our study includes the search for resonance structures in the PSF below S(n) and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.
ER