【摘 要】
：
The radiation shielding characteristics of 50 wt% WO_3/E44 epoxy composite in various gamma energies from80 keV to 1.33 MeV are investigated via the MCNP code.
【机 构】
：
Radiation Application Research School, Nuclear Science and Technology Research Institute,
【出 处】
：
Chinese Physics Letters
论文部分内容阅读
The radiation shielding characteristics of 50 wt% WO_3/E44 epoxy composite in various gamma energies from80 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 1,um 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.
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 1, um 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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