Absolute Measurement of the Cross Section for 23-keV Neutron Activation of Thorium

Baldwin, George Thomas; Knoll, G.F.

doi:10.13182/nse84-a28396

Cited by 12 publications

(1 citation statement)

References 8 publications

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“…A least-squares-adjustment analysis indicated that the following cross-section adjustments are required to resolve the discrepancies between the measured integral data and the ENDF/B-V capture evaluations: 232 Th(n,Y), -5% to 10% up (1 keV to 17 MeV); 2itl Am(n,Y), -30% up (0.1 keV to 17 MeV), 2lt3 Am(n,Y) -44% up (0.1 keV to 17 MeV). This assessment for 232 Th is consistent with a recent measurement at 23-keV neutron energy by Baldwin and Knoll 17 . The above assessment for the 241 Am and 2tf3 Am capture reactions is contingent on an experimental verification of the neutroncapture branching fraction data used in the analysis of the integral experiments 18 .…”

Section: Discussionsupporting

confidence: 91%

Actinide integral measurements in the CFRMF and integral tests for ENDF/B-V

Anderl¹

1982

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Integral capture and/or fission rates have been reported earlier for several actinides irradiated in the fast neutron field of the Coupled Fast Reactivity Measurements Facility (CFRMF). These nuclides include 232 Th, 233 U, ^V, "su, 237NP> 239 Pu, z "°Pu, 242 Pu, 21+1 Am and 21t3 Am. This paper focuses on the utilization of these integral data for testing the respective cross sections on ENDF/B-V. Integral cross sections derived from the measured reaction rates are tabulated. Results are presented for cross-section data testing which includes integral testing based on a comparison of calculated and measured integral cross sections and testing based on least-squares-adjustment analyses.

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Section: Discussionsupporting

confidence: 91%