Measurement of the neutron-induced fission cross-section of 241 Am at the time-of-flight facility n_TOF

European Physical Journal A(2013)

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摘要
. The neutron-induced fission cross-section of 241 Am has been measured relative to the standard fission cross-section of 235 U between 0.5 and 20MeV. The experiment was performed at the CERN n_TOF facility. Fission fragments were detected by a fast ionization chamber by discriminating against the α -particles from the high radioactivity of the samples. The high instantaneous neutron flux and the low background of the n_TOF facility enabled us to obtain uncertainties of ≈ 5
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International Atomic Energy Agency,Neutron Energy,Minor Actinide,Spallation Target,Neutron Energy Range
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