Publications Details

Results of critical experiments on water-moderated fully-reflected 6.90% enriched UO2 fuel pin arrays with a fuel-to-water volume ratio of 0.52

Harms, Gary A.; Miller, Allison D.; Ford, John T.

The Seven Percent Critical Experiment (7uPCX) at Sandia National Laboratories was designed to provide benchmark criticality and reactor physics data for water-moderated pin-fueled nuclear reactor cores in the 5 to 10 percent enrichment range. Approach-to-critical experiments were performed on fifteen roughly cylindrical pure water-moderated and -reflected 7uPCX configurations with a fuel-to-water volume ratio of 0.52. Those configurations are described and the results of the measurements are reported in this paper.