B4C-PE复合材料中子屏蔽性能研究

Nuclear Electronics & Detection Technology(2019)

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Abstract
利用252Cf中子源产生快中子场和热中子场,对系列不同B4C含量B4C-PE复合材料的中子宏观截面进行了实验研究和MCNP模拟计算.结果 表明:热中子宏观截面在±5%内相符,快中子宏观截面在±10%内相符;B4C-PE复合材料对热中子的屏蔽效果明显好于聚乙烯.研究结果可为中子屏蔽材料研发和工程设计提供参考.
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