Abstract In interventional radiology attendant staff can be exposed to significant doses from the radiation scattered from the patient, giving rise to heterogeneous energy distribution, exposure occurring over extended periods of time. Protection of staff is a prime concern, also including reducing the risk of carcinogenesis. With only limited published studies available, as in for instance in regard to lens opacifications, further evaluation of staff exposures and assessment of radiation protection techniques and measures are crucial. Present study has sought to evaluate staff radiation exposure in a radiology department that performs interventional procedures. Annual occupational exposures were obtained for 32 personnel (6 females and 26 males) in a radiology department at a tertiary hospital. Personal dose equivalent Hp (d) was measured in terms of Hp (0.07) (shallow dose) and Hp (10) (deep dose). The measurements were made over a period of two consecutive years, 2017 and 2018, use being made of TLD-100 thermoluminescent dosimeters. In units of mSv, the corresponding average annual dose equivalent and range for Hp (10) and Hp (0.07) were 4.6 ± 7.0 (0.1–25.5) and 5.1 ± 7.3 (0.1–25.5). Notably, 16% of staff received doses that were greater than the annual dose limit. Since Hp (10) offers a conservative evaluation of effective dose, evaluation of the working environment is necessary in seeking to ensure dose values remain below annual dose limits.

中文翻译：

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介入放射科的工作人员辐射剂量和估计风险

摘要 在介入放射学中，护理人员可能会暴露于患者散射的大量辐射中，从而导致能量分布不均匀，暴露时间较长。保护工作人员是首要问题，还包括降低致癌风险。由于只有有限的已发表研究，例如关于晶状体混浊，进一步评估工作人员的照射以及评估辐射防护技术和措施至关重要。本研究旨在评估执行介入手术的放射科的工作人员辐射暴露情况。获得了三级医院放射科 32 名人员（6 名女性和 26 名男性）的年度职业照射。个人剂量当量 Hp (d) 是根据 Hp (0.07)（浅剂量）和 Hp (10)（深剂量）测量的。这些测量是在 2017 年和 2018 年连续两年进行的，使用的是 TLD-100 热释光剂量计。以 mSv 为单位，Hp (10) 和 Hp (0.07) 的相应平均年剂量当量和范围分别为 4.6 ± 7.0 (0.1–25.5) 和 5.1 ± 7.3 (0.1–25.5)。值得注意的是，16% 的工作人员接受的剂量高于年剂量限值。由于 Hp (10) 提供了对有效剂量的保守评估，因此有必要对工作环境进行评估，以确保剂量值保持在年剂量限值以下。以 mSv 为单位，Hp (10) 和 Hp (0.07) 的相应平均年剂量当量和范围分别为 4.6 ± 7.0 (0.1–25.5) 和 5.1 ± 7.3 (0.1–25.5)。值得注意的是，16% 的工作人员接受的剂量高于年剂量限值。由于 Hp (10) 提供了对有效剂量的保守评估，因此有必要对工作环境进行评估，以确保剂量值保持在年剂量限值以下。以 mSv 为单位，Hp (10) 和 Hp (0.07) 的相应平均年剂量当量和范围分别为 4.6 ± 7.0 (0.1–25.5) 和 5.1 ± 7.3 (0.1–25.5)。值得注意的是，16% 的工作人员接受的剂量高于年剂量限值。由于 Hp (10) 提供了对有效剂量的保守评估，因此有必要对工作环境进行评估，以确保剂量值保持在年剂量限值以下。