论文部分内容阅读
目的阐述了建材中放射性核素所产生不确定度因素及影响不确定度的原因。方法通过采用火焰光度法和数学模型分析建材中钾的不确定度,并通过分析计算公式中的每个参数,了解实验操作和测量中存在的不确定度。结果在分析建材中放射性核素40K时,主要受到测量仪器、标准物、样品取样体积及称重等方面的不确定度影响。结论测量仪器所测的数据是造成测量不确定度的主要来源。
Objective To explain the uncertainty factors of building radionuclides and their causes of uncertainty. Methods The uncertainty of potassium in building materials was analyzed by flame photometry and mathematical model, and the uncertainty in experimental operation and measurement was analyzed by analyzing each parameter in the calculation formula. Results In the analysis of building materials radionuclide 40K, mainly by the measuring instruments, standards, sample size and sample size and other aspects of uncertainty. Conclusion The data measured by the measuring instrument is the main source of measurement uncertainty.