饮用水中总α、β-样品源存放测量的异常变化

本文介绍对测量水中总α、β-放射性活性度变化的现状。在测量样品源过程中总α放射性的活度(Bq/ L),开始测量的数值偏高或超标,后经过存放一段时间再进行测量,发现其数值逐渐下降,甚至不超标,这说明测量样品源与存放时间有关系。

Abnormal changes of activity of total α&β radioactivity in drinking water source sample

This article introduces the current conditions of the changes of the activity of the total α&β radioactivity in the drinking water sample. Based on my experience on the measurement of the radioactive sample with low activity for many years, during the Process of the measurement of the water sample, I find that the activity of the total α- radinactivity is a little high or above the standard at the very beginning. Then I just leave it alone for some time, I find that the activity begins to decrease and even to below the standard. This shows that the measurement of the water source sample has something to do with the deposit. This paper gives a brief descriphon of the result of the measured sample and the conclusion.