A comprehensive Monte Carlo study to design a novel multi-nanoparticle loaded nanocomposites for augmentation of attenuation coefficient in the energy range of diagnostic X-rays

Abstract Introduction: The present study aimed to investigate the radiation protection properties of silicon-based composites doped with nano-sized Bi 2 O 3 , PbO, Sm Gd WO 3, and IrO particles. Radiation shielding nanoparticles were investigated for first time in current study. Material methods: MCNPX (2.7.0) Monte Carlo code was utilized calculate linear attenuation coefficients single multi-nano structured over X-ray energy range 10–140 keV. Homogenous distribution spherical a diameter 100 nm silicon rubber matrix simulated. narrow beam geometry used photon flux after by designed nanocomposites. Results: Based on results obtained nanoparticle composites, three combinations different fillers +WO +Bi +PbO selected, their estimated. In 20-60 keV nanoparticles, 70-100 photons higher than 90 keV, PbO showed attenuation. Despite its density, had lower compared other that nanocomposite containing provided better among studied samples. Conclusions: All multi-nanoparticle nanocomposites optimum almost 8% relative nano-based wide diagnostic radiology. Application these new is recommended protection. Further experimental studies are suggested validate our findings.