论文部分内容阅读
应用γ-能谱测量钍的衰变子体钝~(208)所产生的2.6百万电子伏特γ幅射,测定了花岗岩试样中的钍含量。浓度范围为几个到几百个 ppm。未处理的和浸取过的试样均进行过分析。钍~(234)示踪剂已成功地应用于较难进行的化学分析中来寻找误差来源以及经过适当处理后可得到正确的分析值。这个研究可以作为在分析中应用示踪剂的一个例子,而且在发现正偏差和负偏差方面是本研究稍特殊的地方。应用这两个独立的方法所得的结果十分符合。
The thorium content in granite samples was measured by γ-ray emission measurement of 2.6 million electron volts γ generated by the decay daughter of thorium (208). Concentrations range from a few to a few hundred ppm. Untreated and leached samples were analyzed. Thorium ~ (234) tracer has been successfully used in difficult chemical analysis to find the source of error and the correct treatment can be obtained after the correct value. This study can be used as an example of the use of tracer in the analysis and is a little special in this study in terms of finding positive and negative deviations. The results obtained using these two independent methods are in good agreement.