Optimization of the reflector design of the Syrian MNSR

The possibility of optimizing the dimensions and material of the miniature neutron source reactor of Syria was investigated based on a 3-D model of the reactor comprehensive of all reactor components. It was shown that the reflector can be optimized in terms of materials to have 10.00–11.50 mk of initial excess reactivity available at the start-up of the reactor if the side reflector material were substituted by the bottom reflector material. Otherwise if the initial excess reactivity of ∼4.00 mk were to be maintained the saved material would be about 15.000 kg.