【作者】 赵峰； 廖志海； 乔洪波； 安身平； 王占明； 王伟；

【Author】 ZHAO Feng;LIAO Zhi-hai;QIAO Hong-bo;AN Shen-ping;WANG Zhan-ming;WANG Wei;Nuclear Power Institute of China Science and Technology on Reactor Fuel and Materials Laboratory;

【机构】 中国核动力研究设计院核燃料及材料研究所；

【摘要】 X射线荧光分析中,物质成分变化对检测结果会产生影响。多数情况下元素浓度含量和荧光强度间两者不成线性关系。针对铀锆燃料体系工艺生产情况,开展不同浓度的Zr、基体为U(强吸收体)和H、O等非金属(弱吸收体)的多元混合样品,采用MCNP模拟了铀锆混合物及锆氧混合物的荧光强度-元素浓度关系,结果表明所获得的模拟校正曲线与理论计算结果吻合较好,为下一步为X荧光测量中基体校正奠定基础。更多还原

【Abstract】 X ray fluorescence analysis,material composition changes can affect the detection results,in most cases the element concentration and fluorescence intensity of no linear relationship between the two.For the uranium zirconium system fuel research,development,different concentrations of Zr matrix U(strong absorber) and H,O and other non-metallic(weak absorber) multivariate mixed samples,using MCNP simulation of the fluorescence intensity of uranium zirconium and zirconium oxygen mixture mixture of elemental concentrations,simulation result shows that the calibration curve with the theoretical calculation results are in good agreement,for the actual X fluorescence measurement matrix correction lays the foundation for the next step.更多还原