Oxidation states of uranium in single hot particles

The aim of the experiment is to clarify the influence of the environmental conditions on the oxidation states of uranium in single ‘hot’ particles. The particles differ in their structure, elemental and isotopic composition. It is known that there are different classes of particles, which differ in the oxidation state. Previous experiments have shown that the oxidation state of the particle must change from the outside to the inside. They have a significant influence on solubility and bioavailability in the environment. Particles from different sampling locations and particle classes will be compared with respect to the oxidation states of U. With our possibilities the oxidation states can not be measured but only estimated. Mappings of the oxidation states in the particle should verify the classes and provide additionally information about the dissolution behavior.