Burnup Credit — Contribution to the Analysis of the Yankee Rowe Radiochemical Assays

This report presents a methodology for validation of the isotopic
contents of spent light water reactor fuel for actinide-only burnup
credit with additional high-quality radiochemistry assay (RCA) data
obtained from the Yankee Rowe pressurized water reactor. The
additional Yankee Rowe RCA data were not included in previous
isotopic validation studies for burnup credit due to the difficulty of
accurately modeling the complex Yankee Rowe fuel assembly design
using the SAS2H one-dimensional sequence of the earlier SCALE
code system. The advent of the two-dimensional TRITON sequence
of the SCALE 6.0 code system provided the ability to accurately
model the complex Yankee Rowe fuel assembly.