拉萨饮用水源总α放射性测量及其不确定度评定
发布时间:2018-07-03 21:40
本文选题:饮用水源 + 总α放射性 ; 参考:《核电子学与探测技术》2015年10期
【摘要】:为测量拉萨地区饮用水源总α放射性,并评定测量结果不确定度,依据行业标准,测量该地区饮用水源总α放射性,并根据计算公式和不确定度分析实验评定不确定度主要来源及其大小。测量结果表明:该地区饮用水源总α放射性均较低(≤0.05 Bq·L~(-1))。测量不确定度分别为:样品源测量不确定度为19.31%;仪器效率刻度不确定度为2.28%;源的制备不确定度为1.89%;水样残渣不确定度为0.26%;水样体积不确定度为0.05%。
[Abstract]:In order to measure the total 伪 -radioactivity of drinking water source in Lhasa area and assess the uncertainty of the measurement result, the total 伪 -radioactivity of drinking water source in Lhasa area was measured according to the industry standard. According to the calculation formula and uncertainty analysis, the main sources and magnitude of uncertainty are evaluated. The results show that the total 伪 -radioactivity of drinking water in this area is lower (鈮,
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