论文标题
实验测量无限稀释热中子自屏蔽因子
Experimental measurement of infinite dilution thermal neutron self-shielding factor
论文作者
论文摘要
中子在培养基中的吸收及其传输特性会导致中子通量在穿透材料时减小，因为样品中中子的吸收本身在中子本身的吸收会减弱中子通量，因为中子会更深地进入样品。在目前的工作中，通过实验确定了依赖，黄金，锌和汞的热中子自我屏蔽因子。当前的结果与文献中发现的结果一起用于基于用于比较我们结果的积分横截面参数验证数学缩写公式。这些数据物种之间的完全一致性表明，将凸形材料中的中子迁移长度与数学模型中描述的平均和弦长度相关的有效性。
The absorption of neutrons in media together with its transport properties cause the neutron flux to decrease as it penetrates the material because the absorption of neutrons in the sample itself attenuates the neutrons flux as it goes deeper into the sample. In the present work, the thermal neutron self-shielding factors of indium, gold, zinc, and mercury were determined experimentally. The current results together with those found in the literature were used to validate a mathematical ab initio formulae based on integral cross-section parameters used to compare our results. The complete agreement among these species of data suggests the validity of correlating the neutron migration length in the convex-shaped material with the average chord length described in the mathematical model.
