Occupational radiation exposure analysis in industrial radiography in Bangladesh

To evaluate the workload management and guarantee the technical concerns for an appropriate radiation protection method in non-destructive testing (NDT) industries in Bangladesh. The radiation exposure for 721 workers was investigated in industrial radiography through Bangladesh during 2019 to 2022. A thermoluminescence dosimeter (TLD-100) was used to measure the occupational exposure with the operational dose quantity H p (10). All the readout procedures were completed using the Harshaw TLD reader (model 4500). The collective effective dose was 75.73, 115.35, 150.18, and 96 mSv in year 2019, 2020, 2021, and 2022, respectively. The maximum effective dose received among the workers was 19.45, 3.8, 19.19, and 19.53 mSv, respectively, which remained within the stipulated dose limits imposed by Nuclear Safety and Radiation Control (NSRC) Rules-1997, Bangladesh and International Commission on Radiological Protection (ICRP-103). The mean annual individual dose was 0.53, 0.8, 0.83, and 0.39 mSv in 2019, 2020, 2021, and 2022, respectively. The mean value of excess life-time cancer risk (ELCR) was found 1.12 ×10 -3 . The industrial radiography facilities of Bangladesh may be certain that their current safety protocols are adequate. Additionally, few recommendations for safe industrial radiography practices have also been offered.