811 research outputs found
R-Matrix Analysis of the Total and Inelastic Scattering Cross Section of 23Na
Resonance parameters characterizing the interaction of neutrons with 23Na in the energy range from 0.3 to 2 MeV were obtained. These parameters describe the total and inelastic cross section. They were obtained from an analysis of data reported by Märten et al. for inelastic and elastic scattering and by D.C. Larson et al. for the total cross section. The data analysis and deduced resonance parameters are presented in some detail. This report serves to clarify the resonance parameters delivered to CEA/Cadarache.JRC.D.4-Nuclear physic
Comparison of resonance integrals of cross sections from JEFF-3.2 library for some problematic reactions
The quality of the capture cross sections in JEFF-3.2 for a selection of nuclides has been assessed in comparison to other evaluated nuclear data libraries (ENDF/B-VII.1, JENDL-4.0, TENDL-2014 and IRDFF v1.05). The incident neutron capture reactions of this nuclides have been compared to experimental data from the EXFOR database in terms of resonance integrals and, where available, energy dependent data. Recommendations for next version of the JEFF library have been given. For 55Mn, JEFF-3.2 is strongly recommended. For 58Fe and 176,178Hf, JEFF-3.2 is recommended. For 93Nb and 148Nd, JEFF-3.2 is not recommended. For those two nuclides, the capture cross section from JENDL-4.0 is recommended.JRC.D.4-Standards for Nuclear Safety, Security and Safeguard
Uncertainties of calculated coincidence-summing correction factors in gamma-ray spectrometry
Uncertainty propagation to the - coincidence-summing
correction factor from the covariances of the nuclear data and detection
efficiencies have been formulated. The method was applied in the uncertainty
analysis of the coincidence-summing correction factors in the -ray
spectrometry of the Cs point source using a p-type coaxial HPGe
detector.Comment: 4 pages, 2 figures, to be published in the proceedings of the "2019
International Conference on Nuclear Data for Science and Technology" (ND2019
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