Abstract

Curium is one of the key elements in recycling and transmutation of minor actinides (MA) because of its high ra- diotoxicity and difficulty of transmutation. In order to make isotopic analysis of curium in heavily irradiated fuel, the isolation technique of curium was developed by adopting anion exchange chromatography in nitric acid-methanol mixed media. The technique was successfully applied to the analysis of curium in mixed oxide (MOX) fuel irradiated in the experimental fast reactor “JOYO”. The transmutation behaviors of curium in fast reactor are discussed on the basis of observed isotopic ratio of curium.

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