| 活化法区分浓缩铀与贫化铀数值模拟研究 |
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| 引用本文： | 向永春,张传飞,章剑华,胡广春,郝樊华,熊宗华. 活化法区分浓缩铀与贫化铀数值模拟研究[J]. 核电子学与探测技术, 2009, 29(6) |
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| 作者姓名： | 向永春 张传飞 章剑华 胡广春 郝樊华 熊宗华 |
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| 作者单位： | 中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900;中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900;中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900;中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900;中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900;中国工程物理研究院,核物理与化学研究所,四川,绵阳,621900 |
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| 摘 要： | 铀材料的辐射探测方法是核查技术研究的重要内容,主动法是铀材料探测的有效方法之一.论文利用MCNP程序计算分析了活化法区分浓缩铀和贫化铀的可行性,研究表明通过铀材料的裂变率-慢化体厚度的关系曲线能够判断是贫化铀还是浓缩铀.计算分析了~(252)Cf和14MeV中子源在铀材料探测中的优缺点,结果表明~(252)Cf中子源优于14Mev中子源.最后从测量的角度,重点分析了探测对象--缓发γ射线和缓发中子,分析表明探测缓发中子优于缓发γ射线.
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| 关 键 词： | 主动法 贫化铀 缓发中子 缓发γ射线 |
Simulating Distinguish Enriched Uranium from Depleted Uranium by Activation Method |
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| XIANG Yong-chun,ZHANG Chuan-fei,ZHANG Jian-Hua,HU Gang-chun,HAO Fan-hua,XIONG Zong-hua. Simulating Distinguish Enriched Uranium from Depleted Uranium by Activation Method[J]. Nuclear Electronics & Detection Technology, 2009, 29(6) |
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| Authors: | XIANG Yong-chun ZHANG Chuan-fei ZHANG Jian-Hua HU Gang-chun HAO Fan-hua XIONG Zong-hua |
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| Abstract: | Detecting uranium material is an important work in arms control Active detection is an efficient method for uranium material. The paper focuses on the feasibility that can distinguish the enriched urani-urn and the depleted uranium by MCNP program. It can distinguish the enriched uranium and the depleted uranium by the curve of relationship between fission rate of uranium material and thickness of moderator.Advantages of ~(252)Cf and 14MeV neutron sources are discussed in detecting uranium material through cal-culation. The results show that ~(252)Cf neutron source is better than 14MeV one. Delayed neutrons are more easily detected than delayed gamma ray at measurement aspect. |
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| Keywords: | Arms control Activation method Depleted uranium Delayed neutron Delayed gamma ray |
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