铀材料的中子多重性测量分析方法

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Neutron Multiplicity Counting and Analysis for Uranium Material

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China

摘要: 多重性测量是一种可以显著提高测量精度、降低测量偏倚的新方法。本文分析了主动法符合测量偏倚较大的原因,介绍了主动法多重性测量的理论关系式,阐述了由测量数据先确定样品增殖,再由经验关系式得到反应系数,进而得到样品质量的数据处理方法。
- 中子多重性 /
- 铀质量 /
- 主动法
Abstract: Neutron multiplicity counting technique is a new method to greatly improve the measurement precision and reduce the measurement bias. The relatively considerable bias of active coincidence counting is analyzed, and the theoretical equation of active multiplicity counting is introduced in this paper. The data processing method is presented, and in this method, the sample multiplication is obtained based on the meas-ured data, and the reaction coefficient is obtained from the emperical relationship, and thus the sample mass is obtained.
- Neutron multiplicity /
- Uranium mass /
- Active counting