Sensitivity of UO2 Stability in a Reducing Environment on Radiolysis Model Parameters

September 1, 2012

Conference Paper

Sensitivity of UO2 Stability in a Reducing Environment on Radiolysis Model Parameters

Abstract

Results for a radiolysis model sensitivity study of radiolytically produced H2O2 are presented as they relate to Spent (or Used) Light Water Reactor uranium oxide (UO2) nuclear fuel (UNF) oxidation in a low oxygen environment. The model builds on previous reaction kinetic studies to represent the radiolytic processes occurring at the nuclear fuel surface. Hydrogen peroxide (H2O2) is the dominant oxidant for spent nuclear fuel in an O2-depleted water environment.

Revised: April 30, 2013 | Published: September 1, 2012

Citation

Wittman R.S., and E.C. Buck. 2012. Sensitivity of UO2 Stability in a Reducing Environment on Radiolysis Model Parameters. In ACTINIDES AND NUCLEAR ENERGY MATERIALS. MRS Spring 2012 Proceedings, edited by D Andersson, et al, 1444. Cambridge:Cambridge University Press. PNNL-SA-92574. doi:10.1557/opl.2012.1449