This study aimed to investigate occupational radiation exposure in cyclotron workers in Saudi Arabia and compare the doses received with the International Commission of Radiological Protection dose limits. We conducted a retrospective study of Hp (10) and Hp (0.07) in 144 workers in an 18-MeV dual beam (proton and deuteron) cyclotron facility in Saudi Arabia from 2015 to 2019. The workers included physicists, engineers, chemists, radiochemists, technicians, operators, and quality control chemists. Individual dosimetry was assessed using thermoluminescent dosimeters (TLDs) comprised of Harshaw detector crystals with LiF:Mg, Ti elements. The mean Hp (10) and Hp (0.07) doses averaged over the 5-year study period for all workers were 1.47 ± 0.15 and 1.54 ± 0.16 mSv, respectively. No worker received doses exceeding the annual dose limits. We recommend that workers wear ring dosimeters to estimate the dose to the extremities and dosimeters use an advanced type of absorber to discriminate between different types of radiation.

中文翻译：

---

18-MeV 双束回旋加速器设施的人员吸收剂量评估


本研究旨在调查沙特阿拉伯回旋加速器工作人员的职业辐射暴露情况，并将所接受的剂量与国际放射防护委员会的剂量限值进行比较。我们对 2015 年至 2019 年沙特阿拉伯 18 MeV 双束（质子和氘核）回旋加速器设施的 144 名工人进行了 Hp (10) 和 Hp (0.07) 的回顾性研究。这些工人包括物理学家、工程师、化学家、放射化学家、技术人员、操作员和质量控制化学家。使用热释光剂量计 (TLD) 评估个体剂量测定，该剂量计由 Harshaw 探测器晶体和 LiF:Mg、Ti 元素组成。在 5 年研究期间，所有工人的平均 Hp (10) 和 Hp (0.07) 剂量分别为 1.47 ± 0.15 和 1.54 ± 0.16 mSv。没有工人接受的剂量超过年度剂量限值。我们建议工作人员佩戴环形剂量计来估计四肢的剂量，剂量计使用先进类型的吸收器来区分不同类型的辐射。