KARADIMOS, D.; AUDOUIN, L.; DAVID, S.; ISAEV, S.; STEPHAN, C.; TASSAN-GOT, L.; FERRANT, L.; AERTS, G.; ANDRIAMONJE, S.; BERTHOUMIEUX, E.; DRIDI, W.; GUNSING, F.; PANCIN, J.; PERROT, L.; PLUKIS, A.; BAUMANN, P.; KERVENO, M.; LUKIC, S.; RUDOLF, G.; PAVLOPOULOS, P.; HAAS, B.

doi:10.1103/PhysRevC.89.044606

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KARADIMOS, D.

AUDOUIN, L.
Institut de Physique Nucléaire d'Orsay [IPNO]

DAVID, S.
Institut de Physique Nucléaire d'Orsay [IPNO]

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Physical Review C. 2014, vol. 89, p. 044606

American Physical Society

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The neutron-induced fission cross section of 234 U has been measured at the CERN n_TOF facility relative to the standard fission cross section of 235 U from 20 keV to 1.4 MeV and of 238 U from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n_TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to β -vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the TA LY S code with model parameters tuned to fairly reproduce the experimental data.< Leer menos

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Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility

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