Pool-Type Reactors RBT-6 & RBT-10

Pool-type water-cooled reactors RBT were commissioned in 1975 (RBT-6), 1983 (RBT-10/1) and 1984 (RBT-10/2). These reactors are intended for long-term experiments under stable parameters with no need to achieve neutron fluence rapidly. The reactor’s highlight is that it operates the fuel assemblies spent in the SM reactor. A high content of 235U in these fuel assemblies provides for the neutron flux density of 1013 – 1014 cm-2·s-1 while the slow reactivity decrease is particularly related to the presence of 149Sm accumulated in the SM reactor and burning gradually. In August 2014, reactor RBT-10/1 was decommissioned.