| 核临界安全中的源倍增法研究 |
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| 引用本文： | 朱庆福,史永谦,胡定胜.核临界安全中的源倍增法研究[J].原子能科学技术,2005,39(2):97-100. |
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| 作者姓名： | 朱庆福 史永谦 胡定胜 |
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| 作者单位： | 中国原子能科学研究院,反应堆工程研究设计所,北京,102413 |
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| 基金项目： | 国家重点基础研究发展规划项目(TG1999022602) |
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| 摘 要： | 文章对核临界安全研究中通常采用的现场测量技术———源倍增法进行研究。从有源扩散理论出发,导出了与keff不同的有源次临界中子有效增殖因子ks的表达式,并在次临界系统上进行了验证研究。验证实验研究证实了所导出的ks 的正确性。源倍增法测量的参数实际上是次临界系统在外源作用下的有源次临界中子有效增殖因子ks,而不是以往的中子有效增殖因子keff,这就解决了长期困扰人们的有关源倍增法测量的参数问题。文章讨论了ks 与keff间的差别和关系以及它们对核临界安全的影响。
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| 关 键 词： | 核临界安全 源倍增法 有源次临界中子有效增殖因子ks 中子有效增殖因子keff |
| 文章编号： | 1000-6931(2005)02-0097-04 |
Research on Neutron Source Multiplication Method in Nuclear Critical Safety |
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| ZHU Qing-fu,SHI Yong-qian,HU Ding-sheng.Research on Neutron Source Multiplication Method in Nuclear Critical Safety[J].Atomic Energy Science and Technology,2005,39(2):97-100. |
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| Authors: | ZHU Qing-fu SHI Yong-qian HU Ding-sheng |
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| Abstract: | The paper concernes in the neutron source multiplication method research in nuclear critical safety. Based on the neutron diffusion equation with external neutron source the effective sub-critical multiplication factor k_s is deduced, and k_s is different to the effective neutron multiplication factor k_(eff) in the case of sub-critical system with external neutron source. The verification experiment on the sub-critical system indicates that the parameter measured with neutron source multiplication method is k_s, and k_s is related to the external neutron source position in sub-critical system and external neutron source spectrum. The relation (between) k_s and k_(eff) and the effect of them on nuclear critical safety is discussed in the (paper.) |
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| Keywords: | nuclear critical safety neutron source multiplication method effective sub-critical neutron multiplication factor k_s with an external neutron source effective neutron multiplication factor k_(eff) |
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