The possibility of investigating (U+Cm+Pu)N fuel in a fast reactor

The main problem considered in this paper is the problem of reprocessing spent nuclear fuel (SNF). The minor actinides, which are the main contributors to the radioactivity of spent nuclear fuel, pose a great danger in the long term. One possible solution to this problem is to burn off the minor actinides by adding them to the fast-neutron reactor fuel. The main object of this study is the core of a fast reactor. The RBEC fast-neutron reactor was chosen as the prototype. The purpose of the work was to investigate the efficiency of using curium as a fraction to fuel the RBEC reactor. In the course of the study, a heterogeneous calculation model of the RBEC reactor core with curium as a fuel fraction was developed, and the neutron-physical characteristics of the core were calculated. These calculations were performed using the "Serpent" software package. As a result of the study, the neutron-physical characteristics of the core with modified fuel were calculated, and a comparison was made with the neutron-physical characteristics obtained for standard uranium-plutonium fuel. Keywords: fast reactor, reactor core, radioactive waste, spent nuclear fuel, minor actinides, curium, transmutation, fractions to the fuel, RBEC.