A review of activation cross sections in the ENDF/B-VI general purpose files for Cr, Fe, Ni, Cu, and Pb

Isotopic evaluations for 50,52,53,54Cr, 54,56,57,58Fe, 58,60,61,62,64Ni, 63,65Cu, and 206,207,208Pb are included in ENDF/B-VI for the first time. These general purpose files, all by the ORNL evaluation group, include many activation cross sections. In this review, the 34 activation reactions for these materials in the priority-I CSEWG list were checked for their presence and contents in the general purpose files. These cross sections are reviewed in terms of the experimental data base and the evaluation methods. Most of them have been significantly improved over ENDF/B-V through the improved data base and the use of advanced codes such as SAMMY for resonance analysis, GLUCS for handling ratio data and covariances, and TNG for cross-section shape and for extracting individual cross sections from the measured particle spectrum