CODE | NUCLIDE | ORIGINAL DATA TAKEN FROM | MODIFICATION | ADDITIONAL FILE MODIFICATIONS | ORIGINAL DATA TAKEN FROM | MODIFICATION | ADDITIONAL FILE MODIFICATIONS | COMMENTS |
1026057 | 026_Fe_057 | ENDF/B-VI MOD 4 | Revision, June 2000, S.C. Frankle, R.C. Reedy, P.G. Young (LANL) The secondary gamma-ray spectrum for radiative capture (MF 12, MT 102) has been updated for new experimental data at incident neutron energies up to 1 keV. The Q-value for radiative capture was also updated in File 3. Details of these changes are described in Frankel et al. [Fr01]. |
COVARIANCES, BNL, July 2011 Evaluation of covariances in the resonance region is based on the kernel approximation and data from the Atlas of Neutron Resonances. The resonance region extends to high energies. The elastic scattering uncertainty was largely determined by the contribution from potential scattering via the uncertainty of the scattering radius R'. This work was again done fairly carefully and we refer to the reader to BNL reports for the detailed description of the kernel analysis in [1]. In the fast region, the ENDF/B-VI.8 covariances were used as the basis. After review, uncertainties were increased in the threshold region following dispersion analysis (see AFCI-1.2 report [2]). Elastic and inelastic uncertainties tended towards conservative estimates whenever possible. |
S. Kunieda (LANL/JAEA) updated the alpha-particle production cross sections and energy spectra in MF6MT5 , based on the improved Iwamoto-Harada model. Oct 22,2004, Holly Trellue remade mf6mt5 using corrected gnash code, to fix an earlier bug. Impact is reduced sec. particle prod. for new ENDF/B-VII release |