国内地面放射性测量模型标准装置的量值比对

核工业放射性勘查计量站于2015年组织西南、中南、华南和华东四家计量站实施了国内地面放射性测量模型标准装置的量值溯源比对,比对模型为核工业放射性勘查计量站的地面模型。从比对测量结果归一化偏差分析,仅有个别仪器在钾含量较低的YM1和钾含量存在争议的YM3模型的归一化偏差大于1,说明比对过程严谨、比对方法正确、结果可信。从比对测量结果与标称值比较分析,仍是YM1和YM3模型的钾含量相对偏差超过5%,其他均在8%不确定度之内,说明核工业放射性勘查计量站的地面模型量值稳定。

Comparison of Quantity Value of the Standard Ground Radioactivity Measurement Model Device in China

Radiation Survey Metering Station of Nuclear Industry leaded four metering stations of southwest, central south, south China and east China implement domestic ground radioactive measurement model quantity trace ability of standard device in 2015. Aimed at ground radioactivity survey standard model of Radiation Survey Metering Station of Nuclear Industry, see from the normalized deviation analysis of the comparison results, only in the model YM1 which has low potassium concentration and the model YM3 which potassium concentration is controversial, normalized deviation is greater than 1 in individual instruments, it means that process is rigorous, the method is correct, and the result is credible. From the measuring result and nominal value comparative analysis, the expected relative deviation is within 5%, except for the model YM1 and YM3, The results indicate that the ground model of Central station value is stable.