[1]奚月明 张 巍 袁海容 向辉云.PET/CT机房及周围辐射环境监测与评价[J].大众科技,2021,23(5):17-20.
　Monitoring and Evaluation of Radiation Environment in PET/CT Room andIts Surroundings[J].Popular Science & Technology,2021,23(5):17-20.
点击复制

PET/CT机房及周围辐射环境监测与评价()
分享到：

《大众科技》[ISSN:1008-1151/CN:45-1235/N]

卷:
23
期数:
2021年5
页码:
17-20
栏目:
资源与环境
出版日期:
2021-05-20

文章信息/Info

Title:
Monitoring and Evaluation of Radiation Environment in PET/CT Room and Its Surroundings
作者:
奚月明 张 巍 袁海容 向辉云
（广西壮族自治区辐射环境监督管理站，广西 南宁 530222）
关键词:
PET/CT; 辐射剂量率; 表面污染; 辐射防护
Keywords:
PET/CT radiation dose rate surface contamination radiation protection
文献标志码:
A
摘要:
目的：了解PET/CT项目运行时对周围环境产生的辐射影响，评估辐射工作人员的受照剂量水平，为PET/CT项目的辐射防护与安全管理提供科学依据。方法：以某一大型医院的PET/CT项目为例，根据相关标准与技术规范对机房及周围开展辐射环境监测，使用监测仪器测定场所的X-γ辐射剂量率与表面污染水平，并通过监测数据估算工作人员的受照剂量。结果：该PET/CT机房周围部分测点的放射性水平偏高，对PET/CT工作人员产生最大年有效剂量为1.36 mSv。结论：PET/CT辐射工作人员所接受年剂量均低于（GB18871—2002）《电离辐射防护与辐射源安全基本标准》附录B中的限值要求，工作场所的设备和地面的表面污染监测结果低于（GB18871—2002）《电离辐射防护与辐射源安全基本标准》附录B中的控制水平。应继续加强PET/CT工作场所的辐射安全管理，增加工作人员的防护意识，严格按照流程操作，以减少额外的附加照射，避免辐射事故的产生。
Abstract:
Objective: To understand the radiation impact of PET/CT project on the surrounding environment, evaluate the radiation dose level of radiation workers, and provide scientific basis for radiation protection and safety management of PET/CT project. Methods: Taking the PET/CT project of a large hospital as an example, the radiation environment of the computer room and its surroundings was monitored. According to the relevant standards and technical specifications, the X-γ radiation dose rate and surface pollution level of the place were measured by using monitoring instruments, and the exposure dose of the staff was estimated through the monitoring data. Results: The radioactivity level of some measuring points around the PET/CT room was high, and the maximum annual effective dose to PET/CT staff was 1.36mSv. Conclusion: The annual dose received by PET/CT radiation workers was lower than the limit requirements in "Basic Standard for Ionizing Radiation Protection and Radiation Source Safety" appendix B of GB 18871-2002, and the surface pollution monitoring results of equipment and ground in workplace were lower than the control level in "Basic Standard for Ionizing Radiation Protection and Radiation Source Safety" appendix B of GB 18871-2002. We should continue to strengthen the radiation safety management of PET/CT workplace, increase the staffs awareness of protection, and operate in strict accordance with the process, so as to reduce additional exposure and avoid radiation accidents.

参考文献/References:

[1] 李龙. 核医学[M]. 北京: 人民军医出版社，2013. [2] 蒋宁一，戎明海. 实用医疗辐射防护[M]. 北京: 人民卫生出版社，2015. [3] HJ/T 61－2001. 辐射环境监测技术规范[S]. 北京: 国家环境保护总局，2001. [4] GB/T 14583－1993. 环境地表γ辐射剂量率测定规范[S]. 北京: 国家环境保护局，1993. [5] GBZ 120-2020. 核医学放射防护要求[S]. 北京: 中华人民共和国国家卫生健康委员会，2020. [6] GB 18871－2002. 电离辐射防护与辐射源安全基本标准[S]. 北京: 中华人民共和国国家质量监督检验检疫总局，2002. [7] 余飞. PET-CT中心辐射防护设计[D]. 衡阳: 南华大学，2011.

相似文献/References:

[1]陈 晶 李玮衡 崔 伦 林 晨 贾力博 于慧君 向辉云.血液辐照仪Ⅱ类放射源退役辐射监测与分析[J].大众科技,2022,24(12):14.
　Monitoring and Analysis of Decommissioning Radiation of Class Ⅱ Radioactive Sources of Blood Irradiators[J].Popular Science & Technology,2022,24(5):14.

备注/Memo

备注/Memo:
【收稿日期】2021-03-16 【作者简介】奚月明（1976－），女，广西壮族自治区辐射环境监督管理站助理工程师。
更新日期/Last Update: 2021-09-07