Feasibility of a Novel Nuclear Core for ²³²Th Cycle

The goal of this effort is to propose a novel multiplicative fission and conversion core (MFCC) as a potential heat source or energy provider for a thermal electricity generator. The MFCC is designed to optimize fission and radiative capture reaction rates, promoting the use of conversion of fertile ²³²Th material as an energy source. The MFCC operates within the ²³²Th-²³⁸U cycle, enabling the continuous conversion of fertile nuclides and sustained fission of fissile nuclide by-products. In the MFCC, neutrons generated by a central fusion source move radially outward, increasing neutron fluency in a subcritical, compartmentalized medium to offset neutron leakage and absorption. Conversion reactions occur in the outer compartment, while a fluid containing extracted fissile nuclides is channeled inward to separate fission compartments, enabling a self-sustaining feed fluid process. The theoretical assessment of heat energy generation was conducted for a set of predefined geometric and material parameters in a simplified matter, demonstrating feasibility. The MFCC may address radiological and environmental challenges inherent in nuclear reactors, improving nuclear safety.