天津市8台方舱CT应用防护检测结果分析  

Analysis of 8 CT module application protection test results in Tianjin

作　　者：牛振[1] 杜钟庆[1] 李春英[1] 杨守龙 张继勉[1] NIU Zhen;DU Zhongqing;LI Chunying;YANG Shoulong;ZHANG Jimian(Tianjin Center for Disease Control and Prevention,Tianjin 300011 China)

机构地区：[1]天津市疾病预防控制中心,天津300011

出　　处：《中国辐射卫生》2020年第4期374-377,共4页Chinese Journal of Radiological Health

摘　　要：目的了解天津市方舱CT放射防护现状,保障放射诊疗工作人员、患者和公众的健康权益。方法以现场调查与检测的方式对天津市8家医疗机构的方舱CT的防护设施、设备及场所的放射防护情况进行分析。结果本次调查和检测的8台方舱CT机房有效使用面积绝大多数在15 m^2左右,最小单边长度未超过3 m;机房采用3~5 mm铅屏蔽材料;8间机房均为受检者配备了个人防护用品;均设有观察窗和闭门装置,配置率100%;7间机房设置了动力排风装置,配置率87.5%;6间机房设置了工作状态指示灯和门灯联动装置,配置率75%;只有4间机房设置了电离辐射警告标志,配置率50%;放射防护注意事项设置率最低,为37.5%;场所和设备的放射防护检测均满足标准要求。结论我市新安装的方舱CT整体情况良好,总体基本符合辐射防护安全和放射防护标准,能够在应急状态下为放射诊疗活动提供安全保障,仍应完善各项放射防护设施的配置,并在实际工作中加强管理。Objective To understand the current status of CT module radiological protection in Tianjin,and to protect the health rights and interests of radiologists,patients,and the public.Methods To analyze the radiation protection situation of the protection facilities,equipment and places of the CT module in 8 medical institutions in Tianjin by on-site investigation and detection.Results The effective use area of the 8 CT module surveyed and tested is mostly around 15 m^2,and the minimum unilateral length is not more than 3 m;3 to 5 mm lead shielding materials are used in the machine room;8 machine rooms are equipped with personal protective equipment for the examinees.All are equipped with observation windows and door closing devices,with a configuration rate of 100%.7 machine rooms are equipped with a power exhaust device,with a configuration rate of 87.5%;6 machine rooms are equipped with a working status indicator light and door lamp linkage device,with a configuration rate of 75%.Only 4 machine rooms are equipped with ionizing radiation warning signs,and the configuration rate is 50%.The setting rate of the precautions for radiation protection is the lowest,37.5%.The radiation protection tests of places and equipment all meet the standard requirements.Conclusion The newly installed CT modules in our city are in good condition and basically meet the radiation protection safety and radiation protection standards on the whole.They can provide safety guarantee for radiological diagnosis and treatment activities in an emergency situations.The configuration of various radiation protection facilities should still be improved and the management should be strengthened in practical work.

关 键 词：方舱CT 放射防护 设施 配置 

分 类 号：X591[环境科学与工程—环境工程]