PT Journal
AU n_TOF Collaboration (Mendoza, Eea
   Giubrone, G
   Tain, JL
   Tarifeño-Saldivia, A
TI Measurement and analysis of the Am-241 neutron capture cross section at the n_TOF facility at CERN
SO Physical Review C
JI Phys. Rev. C
PY 2018
BP 054616
EP 21pp
VL 97
IS 5
DI 10.1103/PhysRevC.97.054616
LA English
AB The Am-241(n, gamma) cross section has been measured at the n_TOF facility at CERN with the n_TOF BaF2 Total Absorption Calorimeter in the energy range between 0.2 eV and 10 keV. Our results are analyzed as resolved resonances up to 700 eV, allowing a more detailed description of the cross section than in the current evaluations, which contain resolved resonances only up to 150-160 eV. The cross section in the unresolved resonance region is perfectly consistent with the predictions based on the average resonance parameters deduced from the resolved resonances, thus obtaining a consistent description of the cross section in the full neutron energy range under study. Below 20 eV, our results are in reasonable agreement with JEFF-3.2 as well as with the most recent direct measurements of the resonance integral, and differ up to 20-30% with other experimental data. Between 20 eV and 1 keV, the disagreement with other experimental data and evaluations gradually decreases, in general, with the neutron energy. Above 1 keV, we find compatible results with previously existing values.
ER