| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of filling a drinking water sample for a gamma-ray radiation measurement, in which a gap amount causing the deterioration of a quantitative precision is inexpensively and efficiently suppressed to approximately 5% by using a commercially available polyethylene bag, which has a predetermined shape and costs several yen per bag, as an inner bag for a 2 L Marinelli beaker; and the sample can be reproducibly filled into the 2 L Marinelli beaker again even if the sample is once taken out in order to store the sample from the 2 L Marinelli beaker while being filled in the inner bag.SOLUTION: An inner bag is used to prevent contamination for a Marinelli beaker used for measurement for which a recess where a sensor part of a Ge semiconductor detector is entirely entered is provided. The bag contains polyethylene without additive components as a material, has a film thickness of approximately 10 μm or less, and has a columnar shape with a round bottom. In addition, the inner bag is doubled. |
