摘要
目的:了解正电子发射断层显像/X线计算机体层成像仪(PET/CT)工作人员及相关场所的辐射水平,查找防护管理中的薄弱环节。方法:采用热释光剂量计对工作人员进行个人剂量监测;采用X-γ辐射仪对工作场所的环境辐射水平进行检测;采用表面沾染仪对相关场所进行表面污染监测。结果:3家驻宁军队医院PET/CT工作人员平均年有效剂量为0.53 m Sv,远低于国家规定的20 m Sv的年有效剂量限值,且岗位剂量大小依次为注射护士>技师>医师;PET/CT设备本身防护设施和墙体屏蔽效果均较好,但注射室内剂量水平较高;与工作人员相关场所未监测到表面沾染。结论:驻宁军队医院PET/CT工作场所辐射防护监测符合相关标准要求,放射防护管理较完善,但对注射护士和操作技师的辐射防护还需进一步加强。
Objective:To understand the radiation level of PET/CT(Positron emission tomography/Computed tomography)staff and related places, and find out the weak links in the protection management. Methods:We used thermoluminescent dosimeters for personal dose monitoring of staff, the radiation level of X-gamma radiation for workplace environment detection and surface contamination meter for surface contamination monitoring of related sites. Results:The 3 PET/CT staff in Nanjing Military Hospital average annual effective dose was 0.53 m Sv, far below the national standard 20 m Sv of the annual effective dose limit, and post dose size followed by injection of nurses, technicians, physicians; PET/CT equipment protection facilities and wall shielding effects were good, but the indoor dose level of injection and work was high, surface contamination was not monitored in places related to staff.Conclusion:Radiation protection monitoring of PET/CT workplace in the army hospital meets the relevant standard requirements,and the radiation protection management is perfect, but the radiation protection for injection nurses and operating technicians needs to be further strengthened.
出处
《灾害医学与救援（电子版）》
2017年第3期146-149,共4页
Disaster Medicine and Rescue(Electronic Edition)
