Simulation study on highly-enriched uranium components with reflector based on ²⁵²Cf source-driven noise analysis method

For the highly-enriched uranium components with reflector can avoid fissile material measurements skillfully, according to the theory of source-driven noise analysis method, this paper analyzes the highly-enriched uranium components with reflector in different material and thickness and obtains time-correlation incidence count distribution and neutron net multiplication. The results show that for the same reflector, the thicker the reflector is, the better the reflectivity is; for different material reflectors, the denser the reflector is, the more the neutron net multiplication is.