MOX Spent Nuclear Fuel and LaBS Glass for TSPA-LA

This analysis provides information necessary for total system performance assessment (TSPA) for the license application (LA) to include the excess U.S. Department of Energy (DOE) plutonium in the form of mixed oxide (MOX) spent nuclear fuel and lanthanide borosilicate (LaBS) glass. This information includes the additional radionuclide inventory due to MOX spent nuclear fuel and LaBS glass and the analysis that shows that the TSPA models for commercial spent nuclear fuel (CSNF) and high-level waste (HLW) degradation are appropriate for MOX spent nuclear fuel and LaBS glass, respectively. This document was prepared in accordance with Technical Work Plan for Waste Form Testing and Modeling (BSC 2006 [DIRS 177389]) with one deviation. The technical work plan (TWP) (BSC 2006 [DIRS 177389]) specifies that this analysis be prepared in accordance with LP-SIII.9Q-BSC, Scientific Analyses. Upon transition to the Lead Laboratory (Sandia National Laboratories) on October 2, LP-SIII.9Q-BSC was replaced by SCI-PR0-005, Scientific Analyses and Calculations. This document is intended for use in postclosure dose analysis only and does not discuss postclosure criticality for MOX or LaBS glass.