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含硼聚乙烯对D-T中子的屏蔽研究
The radiated-shielding effects on the B4C+CH2 to D-T neutron
【摘要】 利用理论计算和实验测定的方法,得知了含B4C聚乙烯对D-T中子的屏蔽效果,并在此基础上设计了探测屏蔽系统用于零功率堆中子衰变常数(俗称α常数)的瞬态测量实验,实验的信噪比、测量结果等与系统设计值及理论计算结果相符。
【Abstract】 Based on the numerial calculation and experiment measurement, the radiated-shielding effects on the B4C +CH2 material to D-T neutron are gained. Using the results, we designed a detecting shielding system to measure the neutron decay constant ( constant) of the zero-power assembly promptly. The s/n ratio and measurement of the neutron decay constant is similar to the system design data and the numerial calculation.
【关键词】 零功率堆;
中子衰变常数;
α屏蔽效果;
含B4C聚乙烯;
【Key words】 the zero-power assembly; neutron decay constant; radiated-shielding effects; B4C +CH2 material;
【Key words】 the zero-power assembly; neutron decay constant; radiated-shielding effects; B4C +CH2 material;
- 【文献出处】 核电子学与探测技术 ,Nuclear Electronics & Detection Technology , 编辑部邮箱 ,2004年05期
- 【分类号】TL811
- 【被引频次】15
- 【下载频次】281