Abstract
Fast neutron multiplicity counting analysis is a new nondestructive analysis method for nuclear materials. On the basis of the basic theory of fast neutron multiplicity counting technology, an integrated neutron multiplicity simulation platform is designed and set up with the optimized combination of multiple computational tools. The platform consists of four modules: geometric modeling, particle transport, data processing and analysis, and cloud data management modules. It can implement multiple functions, such as automatic modeling, neutron transport, data visual analysis and simulation, and management of cloud platform data. Finally, simulation calculations and an experimental study of fast neutron multiplicity based on a liquid scintillator are performed with this platform. The results show that the deviation between the simulation results and the experimental results is less than 10%, and thus the simulation platform can be used for mutual inspection of mass.
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