COVFILS-2: Neutron Data and Covariances for Sensitivity and Uncertainty Analysis

We have prepared a new, fusion-oriented library of multigroup neutron cross sections, scattering matrices, and covariances (uncertainties and correlations) using modules of the NJOY nuclear data processing system. This 74-group library, called COVFILS-2, was produced specifically for use in the sensitivity and uncertainty analysis of fusion-relevant integral experiments. The 14 materials included in the first version of COVFILS-2 are H, ⁶Li, ⁷Li, Be, C, N, O, Na, Al, Si, Cr, Fe, Ni, and Pb.