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Fast Neutron–Induced Fission Cross Sections of 233, 234, 236, 238U up to 200 MeV

F. Tovesson, A. Laptev, T. S. Hill

Nuclear Science and Engineering / Volume 178 / Number 1 / September 2014 / Pages 57-65

Technical Paper / dx.doi.org/10.13182/NSE13-56

The 233, 234, 236, 238U fission cross sections have been measured relative to 235U(n, f) for incident neutron energies from 200 KeV to 200 MeV using neutron time-of-flight at the Los Alamos Neutron Science Center. The results are generally consistent with the current ENDF/B-VII evaluation, but some discrepancies with previous measurements above 20 to 30 MeV are observed. These measurements are part of a campaign to measure fission cross sections with high precision in support of fast reactor technology.

 
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