A Simple Inspection Method for Radiation Measuring Instruments Using Commercially Available Reagents Containing Natural Radionuclides

Abstract

According to the revision of act on the regulation of radioisotopes in 2023, inspection and calibration of radiation measuring instruments has been obligated. In this study, inspection methods for survey meters using commercially available reagents containing natural radionuclides as a radiation source was investigated. As a result of shielding test, the linearity and reproducibility of attenuation was confirmed. Furthermore, correlation of radiation counts with concentration of ⁴⁰K and ⁸⁷Rb radioactivity was founded. Based on these results, a simple inspection method for survey meters was established.