Staff radiation dose and estimated risk in an interventional radiology department

Alkhorayef, M. and Al-Mohammed, H.I. and Mayhoub, Fareed H. and Sulieman, Abdelmoneim and Salah, Hassan and Yousef, M. and Alomair, Othman I. and Bradley, D.A. * (2021) Staff radiation dose and estimated risk in an interventional radiology department. Radiation Physics and Chemistry, 178. p. 108999. ISSN 0969-806X

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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.

Item Type: Article
Uncontrolled Keywords: Staff exposure; Radiation risk; Effective dose; Annual dose limit
Subjects: R Medicine > R Medicine (General) > R895-920 Medical Physics/Medical Radiology
Divisions: Others > Non Sunway Academics
Sunway University > School of Medical and Life Sciences [formerly School of Healthcare and Medical Sciences until 2020] > Centre of Biomedical Physics [wef 2021 changed to Research Centre for Applied Physics and Radiation Technologies and moved to SET ]
Depositing User: Dr Janaki Sinnasamy
Related URLs:
Date Deposited: 11 Feb 2021 08:22
Last Modified: 11 Feb 2021 08:22

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