SUMMARY

The Subcritical Advanced Burner Reactor (SABR) is a hybrid of an ITER-like fusion neutron source and a modular, IFR-like, sodium cooled, metal fueled, pool type fast reactor. The IFR’s design (and consequently SABR’s design), is based on EBR-II. EBR-II was demonstrated to be inherently safe, and the purpose of our work is to determine if SABR retains this important feature. SABR is composed of 10 physically separate but neutronically coupled cores each within a separate sodium pool. During any type of transient or perturbation, spatial flux tilts could become an issue. Thus, we have developed a dynamics model that relies on a nodal kinetics approach instead of the more traditional point kinetics approach.