<p class="MsoNormal">Gross alpha and gross beta measurement is applied as the screening procedure for justification of the radioactivity in drinking water. Radionuclide activity concentration in drinking water is generally track and cannot be measured directly at normal conditions. The water samples need to be concentrated under mild boiling conditions according to relevant standards. However, such traditional methods take too long a time that it can hardly satisfy the demand of real monitoring of water quality. An automatic radioactivity measurement system based on vacuum and low temperature preconcentration and LSC counting determination is proposed in this study. The system was preliminary characterized by spiked certified solution during the gross alpha and gross beta measurement of drinking water samples. The sample preparation time based on liquid scintillation counting (LSC) is only about 80 minutes, and the recovery percent of alpha standard sample is more than 80%, and that of beta standard sample is more than 90%, moreover, the system would take approximately 6 hours to evaporate and prepare a liter of sample water and the speed was approximately three to four times that of thermal concentration method , showing it is potentially&nbsp; applicable to the fast sample preparation of gross alpha and gross beta in water.</p>

Research of a Fast Sample Preparation Method for Water Radioactivity Measurement

Paper Proceedings: https://asmedigitalcollection.asme.org/ICONE/ICONE28/volume/85246

2021 28th International Conference on Nuclear Engineering (ICONE28)

Supporting the need among researchers worldwide for additional online and multimedia content, ASME now offers the ASME Conference Video Collection. This platform will collect and provide long-term access to conference presentation videos, encompassing all technology areas within ASME's technical conference and events program. About 30,000-40,000 engineers across all mechanical engineering and related disciplines participate in ASME conferences each year. This includes authors of approximately 6,000 to 8,000 technical papers published by ASME, the majority of whom also submit video presentations for our virtual conferences. The video collection will be available as an add-on to existing product packages or as a separate subscription.