Kaljevic Jelica, Stankovic Koviljka, Stankovic Jelena, Ciraj-Bjelac Olivera, Arandjic Danijela
Vinca Institute of Nuclear Sciences, University of Belgrade, M. P. Alasa 12-14, 11001 Belgrade, Serbia.
School of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, 11120 Belgrade, Serbia.
Radiat Prot Dosimetry. 2016 Sep;170(1-4):292-6. doi: 10.1093/rpd/ncv500. Epub 2015 Dec 10.
Manipulation of unsealed radiation sources in nuclear medicine (NM) departments involves non-uniform exposure to staff and high skin doses to the upper extremities from direct and scattered radiations. Conducted studies have shown that the annual dose limits could be exceeded and the continuous dose monitoring of NM worker's hands is needed. The aim of this article is to show results of hand dose monitoring in terms of operational quantity Hp(0.07) for occupationally exposed NM workers to beta and gamma radiations in the largest NM centre in Serbia. Dose assessment was done by means of thermoluminescent ring dosemeters DXT-RAD (LiF:Mg,Ti). Monthly and annual doses were evaluated for a 5-y period (2010-14). Monitored NM staff was categorised according to the type of work, as nurses, radiographers, laboratory technicians and radiochemists. Performed evaluation showed that annual hand doses were within the annual limit for all staff categories, but further optimisation of working practice is needed.
核医学（NM）科室中对未密封辐射源的操作会使工作人员受到不均匀照射，且其上肢会因直接辐射和散射辐射而受到较高的皮肤剂量。已开展的研究表明，可能会超过年剂量限值，因此需要对核医学工作人员的手部进行持续剂量监测。本文的目的是展示在塞尔维亚最大的核医学中心，针对职业暴露于β和γ辐射的核医学工作人员，以操作量Hp(0.07)为指标的手部剂量监测结果。剂量评估通过热释光环形剂量仪DXT-RAD（LiF:Mg,Ti）进行。对2010年至2014年这5年期间的月度和年度剂量进行了评估。被监测的核医学工作人员根据工作类型分为护士、放射技师、实验室技术员和放射化学家。进行的评估表明，所有工作人员类别的年度手部剂量均在年度限值内，但仍需要进一步优化工作流程。
