Occupational radiation exposure analysis in industrial radiography in Bangladesh

Q1 Health Professions

Radiation Medicine and Protection Pub Date : 2025-04-01 DOI:10.1016/j.radmp.2025.03.002

Mehedi Hassan, Shahadat Hossain, M.M. Mahfuz Siraz, Shikha Pervin, Nazneen Sultana, Md Zakir Hossain, Selina Yeasmin

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Abstract

Objective

To evaluate the workload management and guarantee the technical concerns for an appropriate radiation protection method in non-destructive testing (NDT) industries in Bangladesh.

Methods

The radiation exposure for 721 workers was investigated in industrial radiography through Bangladesh during 2019–2022. 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).

Results

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.

Conclusion

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.

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孟加拉国工业放射学的职业辐照分析

目标对孟加拉国无损检测（NDT）行业的工作量管理进行评估，并为适当的辐射防护方法提供技术保障。方法在2019-2022年期间，对孟加拉国工业放射摄影行业的721名工人进行了辐射暴露调查。使用热释光剂量计（TLD-100）测量职业辐照度，工作剂量量为 Hp(10)。结果 2019 年、2020 年、2021 年和 2022 年的总有效剂量分别为 75.73、115.35、150.18 和 96 mSv。工人受到的最大有效剂量分别为 19.45、3.8、19.19 和 19.53 mSv，均未超出孟加拉国核安全与辐射控制（NSRC）规则-1997 和国际辐射防护委员会（ICRP-103）规定的剂量限值。2019 年、2020 年、2021 年和 2022 年的个人年平均剂量分别为 0.53、0.8、0.83 和 0.39 毫希沃特。结论孟加拉国的工业射线照相设施可以确定其当前的安全协议是充分的。此外，还提出了一些关于工业射线照相安全操作的建议。

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