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核技术  2013 

基于MCNP5与WINXCOM仿真计算的铋玻璃屏蔽特性研究

DOI: DOI:10.11889/j.0253-3219.2013.hjs.36.110201, PP. 110201-110201

Keywords: 屏蔽材料,蒙特卡罗(MonteCarlo,MCNP),铋玻璃

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Abstract:

通过MCNP5(蒙特卡罗,MonteCarlo)和WINXCOM程序研究了在0.662MeV、1.17MeV和1.33MeV三种γ射线下铋玻璃的衰减系数,并与铅玻璃进行对比。根据衰减倍数K以及综合考虑材料屏蔽性能和机械性能后,材料可以选择含氧化铋含量为50%的铋玻璃。计算了137Cs与60Co源照射以及铋玻璃的厚度分别为2cm和10cm的水模体剂量率分布。结果反应出在适合的能量下,铋玻璃可能会替代铅玻璃作为防辐射玻璃。

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