Preliminary Study on Alternative Reflectors for LOTUS Reactor

LOTUS reactor - a compact lead-cooled fast is currently being studied to generate 200 MWth of capacity and operate for 20 years without refueling the floating nuclear power plant (FNPP) application. Therefore, it would be big advantage achieve long operation refueling. However, small usually has higher neutron leakage, good reflector essential maintain economy. The main objective selecting potential reflectors materials using Monte Carlo code, Serpent. various candidate materials, including Al2O3, BeO, MgO, PbO, SiO2, ZrO2 are calculated from neutronics characteristics determine reflector. In this work, we have investigated parameters characteristics, such as core flux spectrum, evolution keff due burn-up, distribution, lead coolant void reactivity with each From comparison those parameters, MgO material was found relector reactor.