基于γ射线吸收法测量锆基燃料元件均匀性精度影响分析

Influence Analysis on Uniformity Accuracy of Zirconium Based Fuel Element Measurement Based on Gamma Ray Absorption Method

文章通过实验和理论开展了基于“单能γ射线吸收法”测量锆基燃料元件铀均匀性精度的影响分析。研究了统计涨落、运动模式、芯体成分、计算方法、板厚变化、采样面积等因素对精度的影响,分析得到了不同因素对精度影响的变化规律,为锆基燃料元件的铀均匀性检测技术优化提供理论支撑。

In the present article,the influence of“single energy 7-ray absorption method”on the uniformity accuracy of uranium in zirconium based fuel element is analyzed experimentally and theoretically.The influence of statistical fluctuation,movement mode,core composition,calculation method,plate thickness and sampling area on the accuracy was studied,and the variation rule of different factors on the accuracy was analyzed,which provided theoretical support for the optimization of uranium uniformity detection technology for zirconium based fuel element.