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This is a directory to plots of the covariances from ENDF/B-VII.1
as processed by NJOY in January 2012. The MF33 links give cross section
covariances, the MF34 links give mubar covariances, the MF31 links
give nubar covariances, and the MF35 links give fission spectrum
covariances. We also provide tables of the percent uncertainty in
the quantities. The values in these tables are the same as those
shown on the graphs. See PC33 for cross sections and percent
uncertainties, PC34 for mubar and its uncertainties, PC31 for
nubar and its uncertainties, and PC35 for the fission spectrum and
its uncertainties. The LANL 30-group structure is used. The
weighting function is the LANL "claw" function, a thermal+1/E+fission+fusion
shape. The plots for some materials with MF34 are currently missing because of evaluation and/or NJOY problems. |