Based on GEANT4 software,a flexible,lightweight,lead-free bismuth-containing radiation protection fabric was designed by Monte Carlo method.A simulation model was established to study the effects of the mass fraction of bismuth powder and the particle size of bismuth powder on the radiation protection properties of the protective materials,and the results were compared with the actual preparation.It is found that bismuth element can greatly improve the radiation protection efficiency of the protective material.When the mass fraction of bismuth powder is 70.0%,the particle size of bismuth powder is 1 µm,and the coating thickness is 400 µm,the radiation protection performance of the protective fabric is better.
关键词
铋/蒙特卡罗方法/吸收弱区/辐射防护材料/质量衰减系数
Key words
bismuth/Monte Carlo method/weak absorption region/radiation protection materials/mass attenuation coefficient
维普
万方数据