Physics Considerations in the Design of Liquid Metal Reactors for Transuranium

The management of transuranic nuclides in liquid metal reactors (LIvlR’s) is umsidered based on the use of the Integral Fast Reactor (WI?) conceptUnique features of the IFR fiel cycle with respect to transuranic management are identified. lhese features are exploited together with the hard spectrum of LMR’s to demonstrate the neutronic feasibility of a wide range of transuranic management options ranging from efficient breeding to pure consumption. Core physics aspects of the development of a low sodium void worth bansuranic burner concept are desczibed. Neutronics pCrfOMMQCC paramdfxs and reactivity feedback chamctdstics estimated for this core concept are presented.