Gamma spectroscopy is widely used in radioactivity analysis, and gamma spectrometers are calibratedusing certified reference materials (CRMs). The efficiency of this instrument is determined by various factors such asthe energy of the gamma rays, the distance between the sample and the detector, the volume of the sample, and thecharacteristics of the detector. After the efficiency of the instrument is calibrated, a common measurement method isto estimate the radioactivity value by measuring an unknown sample made with the same volume and density as theCRM. The sample can be a variety of materials such as food, soil, and sediment, and it may be difficult to make thesame volume as the calibration source CRM due to the scarcity of the sample or the difficulty of sampling. In thisstudy, when the sample amount was insufficient, a correction value for the difference in sample amount was derivedbased on the efficiency value calculated using the software LabSOCS of Mirion Technologies, Inc., and
- Book : 19(1)
- Pub. Date : 2025
- Page : pp.75-80
- Keyword :