CODE	NUCLIDE	ORIGINAL DATA TAKEN FROM	MODIFICATION	ADDITIONAL FILE MODIFICATIONS	ORIGINAL DATA TAKEN FROM	MODIFICATION	ADDITIONAL FILE MODIFICATIONS	COMMENTS
1024050	024_Cr_050	ENDF/B-VI MOD 5	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 previous (MOD 4) pure continuum at thermal neutron energy is replaced by 71 discrete photons. The MF=12, MT=102 yields from 1-100 keV were adjusted slightly to force energy conservation. Details of these changes are described in Frankel et al. [Fr01].	24-Cr- 50 ORNL Resonance Evaluation Including Covariance L. C. Leal, H. Derrien, K. Guber, G. Arbanas and D. Wiarda Covariances for Cr-50, S. Hoblit, BNL, Aug. 2011 The COMMARA-2.0 covariances in the fast neutron region were adopted for ENDF/B-VII.1. These covariances used the ENDF/B-VI.8 evaluation as the starting point. The reason was that both the basic files (adopted by ENDF/B-VII.0) and covariances were produced by the highly experience ORNL group, Hetrick etal (1991). We restored these covariances although CSEWG decided to drop them from ENDF/B-VII.0. In case of Cr the justification for dropping was relatively weak and mostly concerned the resonance region. At inelastic scattering threshold region, the original ENDF/B-VI.8 uncertainties were increased based on the dispersion analysis of existing evaluations. Similarly, capture cross sections uncertainties at high energies were increased to values that were deemed to be more realistic. An MF33 LB=5 section was added to the covariances for elastic scattering at the upper end of the resonance region (2-783 keV) to account for the uncertainty in the scattering radius R'. The uncertainty in R' was taken from the Atlas of Neutron Resonances and propagated to the elastic cross sections, using the 33-group energy bins of the AFCI COMMARA-2.0 processed files. To account for the capture uncertainty in COMMARA, an additional 5% MF33 LB=1 section was added from 100 - 783 keV, where long-range correlations are not fully accounted for in MF32 alone.				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