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本文利用基本参数法的定量分析技术测定了一些古代青铜器的成分,并探讨了非破坏分析的可能性。详细方法和实验设备见文献,其实验结果简报如下。 1.已知成分的铅钖样品的分析 对铅和钖配比分别为40.0％和60.0％的样品进行了27次分析,其平均值分别为(40.3±1.0)％和(59.3±1.0)％,还检出了0.4％的锑,这表明准确度和精密度均好于3％。 2.样品几何位置改变对分析结果影响 在计算一次荧光和二次荧光时都要考虑激发辐射和特征X射线与样品平面的夹角。在本实验中通过两种办法来调节激发辐射与样品平面的夹角:(1)在计算公式中取ψ=
In this paper, the composition of some ancient bronzes was determined by the quantitative analysis method of the basic parameter method, and the possibility of non-destructive analysis was discussed. Detailed methods and experimental equipment, see the literature, the experimental results briefings are as follows. 1. Analysis of Lead Samples with Known Compositions Samples were analyzed for 27 times with 40.0% and 60.0% lead and 40% respectively, with average values of (40.3 ± 1.0)% and (59.3 ± 1.0)%, respectively , 0.4% antimony was also detected, indicating accuracy and precision better than 3%. 2. Influence of sample geometric position changes on the analysis results When calculating the first fluorescence and the second fluorescence, the angle between the excitation radiation and the characteristic X-ray and the sample plane must be considered. In this experiment, there are two ways to adjust the angle between the excitation radiation and the sample plane: (1) Take the formula ψ =