The radiation shielding characteristics of 50 wt% WO 3 / E44 epoxy composite in various gamma energies from 80 keV to 1.33 MeV are investigated via the MCNP code. Thus two scales are considered for WO 3 filler particles: micro and nano with sizes of and 50 nm, respectively. The simulation results show that WO 3 nano particles exhibit a larger increase in linear attenuation coefficient in comparison with micro size particles. Finally, validation of simulation results with the published experimental data shows a good agreement .
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Malekie et al. (2017) studied this question.
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