Reference computations of public dose and cancer risk from airborne releases of uranium and Class W plutonium

System specification for the plutonium stabilization and packaging system

“…I I I Peterson, 1993 I RFETS, 1996a I I RFETS, 1996b calculated potential offsite dose does not result in dose dose due to system failure will not exceed 0.5 rem, and if the system Is not required for nuclear criticality safety, the system may be designed as a nonsafety class system. On the basis of the accident From the model of the accident, analysis performed to assess those features and procedures the potential radiological essential to llmltlng the hazards at a particular facility, calculated dose commitment the adequacy of the safety below the design guideline classification recommended by levels can be identified this guide can be determined.…”

Evolving Defect Chemistry of (Pu,Am)O2±x

“…Am builds up relatively quickly due to the short half-life of 241 Pu (14.4 years), with Am concentrations peaking after approximately 70 years, at which point, it too begins to decay faster than it is produced. 3 Incorporation of Am is predicted to alter the defect chemistry of PuO 2 ; in a density functional theory (DFT) investigation on Pu−Am mixed oxide surfaces, Chen et al 4 report that the presence of Am promotes the formation of O vacancies that increase the favorability of molecular adsorption of water on PuO 2 surfaces while reducing the favorability of dissociative water adsorption. The consequence of this could be an increased likelihood of chemical reactions including the aforementioned pressurization.…”