|
|
|
| Radiation environment monitoring and evaluation of DR room in Guangxi large and medium hospitals |
| PENG Wenbin, XU Mingfa, XIANG Huiyun, HE Yena, CHANG Qing, JIANG Yue, ZHANG Wei, LIN Chen |
| Guangxi Radiation Safety Supervision Station, Nanning 530222 China |
|
|
|
|
Abstract Objective To understand the current situation of DR room protection in large and medium- hospitals in Guangxi, evaluate the radiation impact on the surrounding environment, professional staff and public members during DR operation, provide basis for radiation safety management of DR project, and provide support for the establishment of radiation monitoring standards.Methods According to the relevant national standards and monitoring specifications, the reasonable distribution of DR equipment room and surrounding environment is standardized. The radiation environment monitoring of 169 DR equipment rooms in 54 large and medium hospitals in Guangxi is carried out by using x-γ dose rate instrument, and monitoring data were analysed to evaluate shielding capacity of all DR room.Results The ambient dose equivalent H * (10) of 169 DR equipment rooms at 0.3 m outside the shield is less than 2.5 μSv/h.Conclusion The shielding capacity of DR room in large and medium-sized hospitals in Guangxi can meet the radiation protection requirements, and the annual effective dose accepted by radiation workers and members of the public meets the requirements of relevant standards.
|
|
Received: 21 January 2020
|
|
|
|
|
|
[1] 国家核技术利用辐射安全监管系统. http://10.76.10.91:7001/rsms/.
[2] 常青, 贾力博, 林秋莲, 等. 某DR机房整改前后周围环境辐射监测及分析[J]. 大众科技,2019,21(3):14-15, 58
[3] 赵士庵, 尉可道, 欧向明. 医用诊断X射线的能量分布和能量表达[J]. 中国医学装备,2013,10(2):8-12
[4] 中华人民共和国国家质量监督检验检疫总局. GB 18871—2002 电离辐射防护与辐射源安全基本标准[S]. 北京: 中国标准出版社, 2002.
[5] 中华人民共和国国家卫生和计划生育委员会. GBZ 130—2013. 医用X射线诊断放射防护要求[S]. 北京: 中国标准出版社, 2013.
[6] 张震, 练德幸, 侯长松, 等. 辐射检测仪器时间响应修正方法验证与探讨[J]. 中华放射医学与防护杂志,2018,38(1):48-51
[7] 徐辉, 赵锡鹏, 岳保荣, 等. RJ32-2106P和AT1123两种Χ-γ剂量率仪响应时间性能研究[J]. 中国辐射卫生,2018,27(6):595-598
[8] 王俊生, 李智民, 林大枫. AT1123型Χ-γ射线剂量检测仪终值响应时间的研究[J]. 中国辐射卫生,2016,25(4):483-486
[9] 欧向明. 常用辐射防护仪器电路时间常数的研究[J]. 中国医学装备,2010,7(2):6-8
[10] 周峰, 刘长军, 向元益, 等. 医用X射线装置环境辐射监测的问题研究[J]. 能源环境保护,2016,30(3):57-59, 53, 56, 40, 22
[11] 杜继星. 医用诊断X射线的特性、测量与防护研究[D]. 北京: 中国人民解放军军事医学科学院, 2016.
[12] 王桂花, 秦欢, 李晓恒, 等. X-γ剂量率仪对宇宙射线响应的测量研究[J]. 中国辐射卫生,2019,28(2):166-167, 170
|
|
|
|
