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

doi:10.1103/PhysRevC.83.044620

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TARRÍO, D.

TASSAN-GOT, L.
Institut de Physique Nucléaire d'Orsay [IPNO]

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

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Physical Review C. 2011, vol. 83, p. 044620

American Physical Society

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Neutron-induced fission cross sections for natPb and Bi209 were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to U235 and U238 in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.< Réduire

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Neutron-induced fission cross section of natPb and Bi209 from threshold to 1 GeV: An improved parametrization

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