Korun M
Jozef Stefan Institute, Jamova 39, Ljubljana, Slovenia.
Appl Radiat Isot. 2008 Jun-Jul;66(6-7):841-4. doi: 10.1016/j.apradiso.2008.02.024. Epub 2008 Feb 12.
A method to determine the optimal sampling and counting regimes for water monitoring is presented. It is assumed that samples are collected at a constant rate. The collection time is followed by a sample preparation time that is proportional to the sample quantity collected, and then by the counting time. In the optimal regime these times are chosen in such a way that the minimum detectable concentration is the lowest. Two cases are presented: the case when the background originates from the spectrometer background, which is constant in time and independent of the sample properties, and the case when the background originates from the radioactivity present in the sample.
提出了一种确定水监测最佳采样和计数方案的方法。假设样品以恒定速率采集。采集时间之后是与采集的样品量成比例的样品制备时间，然后是计数时间。在最佳方案中，这些时间的选择方式是使最低可检测浓度最低。介绍了两种情况：一种情况是背景源于光谱仪背景，其在时间上是恒定的且与样品特性无关；另一种情况是背景源于样品中存在的放射性。
