Reactor, breeder heterogeneous

CARTA, M., GRANGET, G., PALMIOTTI, G., SALVATORES, M., SOULE, R., Control Rod Heterogeneity Effects in Liquid Metal Fast Breeder Reactors Method Developments and Experimental Validation, Nuclear Science and Engineering, 100 (1988) pp. 269-276. 

Two design options are considered for the reactor core a conventional homogoteous core and an axial heterogeneous core with an internal fertile slice just below core midplane. Both concepts (see Figio) have three core zones with different plutonium contents and are fully compatible with each other. The core is surrounded by one row of breeder subassemblies and an axial breeder blanket located above and below core. 

Waltar, A. E. and A. B. Reynolds. 1981. Fast Breeder Reactors. New York Pergamon Press. This book discusses the basic principles and methods as well as design features of fast breeder reactors. Each chapter ends with references and problems to be solved. Appendices include fast reactor data, comparison of homogeneous and heterogeneous core designs, and a list of symbols. 

The liciuid-metal system that has received the greatest emphasis to date is of the heterogeneous, circulating fuel type. This reactor, known as the Liquid iMetal Fuel Reactor (LMFR), has as its fuel a dilute solution of enriched uranium in liquid bismuth, and graphite is u.scd as both moderator and reflector. With as the fuel and Th as the fertile material, the reactor can be designed as a thermal breeder. Consideration is restricted here to this reactor type but, wherever possible, information of a general nature is included. 

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