Investigation of fast neutron shielding properties of new polyurethane-based composites loaded with B4C, BeO, WO3, ZnO, and Gd2O3 micro-and nanoparticles

Mesbahi, Asghar; Verdipoor, Khatibeh; Zolfagharpour, Farhad; Alemi, Abdolali

doi:10.2478/pjmpe-2019-0028

Abstract

The aim of the current research was to study the radiation shielding properties of polyurethane-based shielding materials filled with B₄C, BeO, WO₃, ZnO, and Gd₂O₃ particles against fast neutrons. The macroscopic cross sections of composites containing micro- and nanoparticles with a diameter of 10 µm and 50 nm were calculated using MCNPX (2.6.0) Monte Carlo code. The results showed that adding nano-scaled fillers to polyurethane matrix increases attenuation properties of neutron shields compared to micro-scaled fillers for intermediate and fast neutrons. Among the studied composites, WO₃ and Gd₂O₃ nano-composites presented higher neutron cross section compared to others.

References

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Investigation of fast neutron shielding properties of new polyurethane-based composites loaded with B4C, BeO, WO3, ZnO, and Gd2O3 micro-and nanoparticles

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