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

Abstract : 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.
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http://hal.in2p3.fr/in2p3-01011791
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Submitted on : Tuesday, June 24, 2014 - 3:49:40 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:33 PM

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D. Tarrío, L. Tassan-Got, L. Audouin, B. Berthier, L. Ferrant, et al.. Neutron-induced fission cross section of natPb and Bi209 from threshold to 1 GeV: An improved parametrization. Physical Review C, American Physical Society, 2011, 83, pp.044620. ⟨10.1103/PhysRevC.83.044620⟩. ⟨in2p3-01011791⟩

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