Preparation of feedstock for uranium and plutonium mixed oxide fuels containing minor actinides by microwave heating

Nakahara, Masaumi; Senzaki, Tatsuya; Sano, Yuichi   ; Kato, Masato   

It has been proposed that minor actinides are recovered and reused as nuclear fuel in a fast reactor fuel cycle system. In this study, minor actinides which were recovered from high-level liquid waste derived from irradiated fast reactor fuel in an extraction chromatography process and U and Pu nitrate solution were mixed, and mixed oxide fuel powders were prepared by microwave heating. The characterization of the mixed oxide fuel powders containing minor actinides was evaluated by X-ray diffraction and thermal analysis.