APPROACH FOR IMPLEMENTING BURNUP CREDIT IN HIGH-CAPACITY TRUCK CASKS

General Atomics (GA) will be submitting an application for certification to the U.S. Nuclear Regulatory Commission (NRC) for the GA-4 and GA-9 Casks in 1992. To maintain a capacity of four pressurized-water-reactor (PWR) spent fuel assemblies, the GA-4 Cask uses burnup credit as part of the criticality control for the higher enrichments. Using the U.S. Department of Energy (DOE) Burnup Credit Program as a basis, GA presents here an approach to burnup credit analysis to be included in the Safety Analysis Report for Packaging (SARP).