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Predicting Radiation-Induced Plutonium Redox Chemistry using Multiscale Modeling Methods

Conference ·
DOI:https://doi.org/10.2172/2584319· OSTI ID:2584319
 [1];  [2];  [2];  [2];  [2]
  1. Idaho National Laboratory (INL), Idaho Falls, ID (United States). Center for Space Nuclear Research
  2. Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Over the the last 70 years plutonium (Pu) has been integral in the development of several technologies that have changed the world, yet our fundamental understanding of its chemistry is still far from complete. This is a testament to this element?s unique and complex properties, such as its ability to coexist as multiple oxidation states in aqueous solution. Careful manipulation of plutonium oxidation states is essential in the study and utilization of its rich chemistry. To achieve this level of control, a comprehensive mechanistic understanding of radiation-induced plutonium redox chemistry is critical due to the unavoidable exposure of plutonium to ionizing radiation fields, both inherent and from in-process applications. For this reason, we have developed an experimentally evaluated multi-scale computer model for the prediction of gamma radiation-induced Pu(IV) redox chemistry in concentrated nitric acid solutions (1.0, 3.0, and 6.0 M).

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
DOE Contract Number:
AC07-05ID14517
OSTI ID:
2584319
Report Number(s):
INL/CON-24-79910
Country of Publication:
United States
Language:
English

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