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核材料尤其是高浓铀材料一直是人们重点关注的对象,越来越多的方法和技术手段用来探测其质量和富集度的信息,而重屏蔽体内高浓铀材料质量和富集度的测量是一项技术性的难题。为此,利用14 MeV中子和14 MeV中子慢化后得到的连续中子能谱来探测铅容器内铀材料质量和富集度的信息,结果如下:在低富集度的范围内,相同富集度的铀样品质量之间存在良好的线性关系;相同质量的铀样品富集度之间也存在良好的线性关系,这为将来探测重屏蔽体内铀材料质量和富集度的信息提供了很好的方法基础。
Nuclear materials, especially high-enriched uranium (HEU), have always been the focus of attention. More and more methods and techniques are used to detect the quality and enrichment information, while heavy-shielding HEU materials are heavily shielded The measurement is a technical problem. For this reason, using the continuous neutron energy spectrum obtained after the slow moderation of 14 MeV neutrons and 14 MeV neutrons to detect the information of uranium material quality and enrichment in lead containers, the results are as follows: In the range of low enrichment, There is a good linear relationship between the quality of uranium samples of the same enrichment degree. There is also a good linear relationship between the enrichment of uranium samples of the same quality, which will provide information for future detection of uranium material quality and enrichment in the heavily shielded materials A good method foundation.