Occupational exposure to ionizing radiation of medical personnel is very common at radiology and nuclear medicine departments. Strict regulations and guidelines for the exposure of staff working in such departments were regulated by international authorities such as the International Atomic Energy Agency (IAEA), and the International Commission on Radiological Protection (ICRP) as well as national protocols. In order to reduce stochastic effects, for example, radiation induced carcinogenesis, the exposure of staff working at nuclear medicine department should be maintained at levels lower than 20 mSv per year or 100 mSv in five years.

The objective of this study is to measure staff radiation dose at four radiology departments in the south region of the Kingdom of Saudi Arabia. Exposures received by a total of 106 staff working at the radiology department were monitored for two consecutive years using calibrated Thermoluminecnt dosimeters (LiF:Mg:Ti (TLD-100). Exposure was then quantified in terms of deep dose: Hp (10). The TLD signal was obtained using an automatic TLD reader (Harshaw 6600).

The overall annual dose for staff was 1.4 ± 0.37 (0.67–8.74). The study revealed that the annual radiation exposure in the four-radiology department is below the annual dose limits. However, staff doses could be reduced if proper radiation protection are followed.

医务人员的职业电离辐射暴露在放射科和核医学科非常普遍。国际原子能机构 (IAEA) 和国际放射防护委员会 (ICRP) 等国际权威机构以及国家协议对在这些部门工作的工作人员的照射制定了严格的规定和准则。为了减少随机效应，例如辐射诱发的致癌作用，核医学科工作人员的暴露水平应保持在每年低于 20 毫希沃特或 5 年内低于 100 毫希沃特的水平。

本研究的目的是测量沙特阿拉伯王国南部地区四个放射科工作人员的辐射剂量。使用校准的 Thermoluminecnt 剂量计（LiF:Mg:Ti (TLD-100)）连续两年监测在放射科工作的总共 106 名工作人员收到的照射。然后根据深度剂量对照射进行量化：Hp (10)。 TLD 信号是使用自动 TLD 阅读器 (Harshaw 6600) 获得的。

工作人员的年总剂量为 1.4 ± 0.37 (0.67–8.74)。研究显示，四放射科的年辐射暴露量低于年剂量限值。但是，如果采取适当的辐射防护措施，可以减少工作人员的剂量。