RESULTS OF CRITICAL EXPERIMENTS ON WATER-MODERATED FULLY-REFLECTED 6.90 ENRICHED UO_2 FUEL PIN ARRAYS WITH A FUEL-TO-WATER VOLUME RATIO OF 0.52

摘要

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.