对三种方法获取的γ辐射剂量率的比对分析  

Comparative Analysis of Gamma Dose Rate Obtained by Three Methods

作　　者：彭丽君 刘焱 平秀坤 陶扬 刘定维 张金帆 Peng Lijun;Liu Yan;Ping Xiukun;Tao Yang;Liu Dingwei;Zhang Jinfan(Shenzhen Nuclear and Radiation Technology Application Association,Shenzhen 518049,China;Guangdong Shenzhen Ecological Environmental Monitoring Centre Station,Shenzhen 518049,China)

机构地区：[1]深圳市核与辐射技术应用协会,深圳518049 [2]广东省深圳生态环境监测中心站,深圳518049

出　　处：《核安全》2024年第6期77-84,共8页Nuclear Safety

摘　　要：[目的]探讨环境γ辐射剂量率的三种监测方法的可比性和替代性,分析三种方法的不同应用需求;[方法]选取深圳市辖区14个监测点位作为研究对象,以2023年7—12月作为监测时段,使用自动连续监测、累积剂量监测和即时测量三种方法对环境γ辐射剂量率进行监测,并通过En值比对的方式对三种方法进行分析验证;[结果]该三种方法的监测结果两两进行比对,自动连续监测与累积剂量监测的比对结果差异性相对最小,自动连续监测与即时测量的比对结果差异性相对最大;[结论]自动连续监测与累积剂量监测具备较好的可比性和替代性;即时测量因其监测方法和仪器的特点,在辐射环境质量定点监测方面存在局限性,更适用于大区域网格化的城市辐射环境质量调查。[Objective]The comparability and substitution of three monitoring methods of environmental gamma radiation dose rate were discussed,the different application requirementsof the three methods were analyzed.[Methods]A total of 14 monitoring sites in Shenzhen were selected as the research objects,three monitoring methods of automatic continuous monitoring,cumulative dose monitoring and Immediate measurement were used to monitor environmental gamma radiation dose rate from July to December 2023 as the monitoring period,and the three methods were analyzed and verified by En value comparison.[Results]The monitoring results of the three methods were compared in pairs,The difference in comparison results between automatic continuous monitoring and cumulative dose monitoring is relatively minimal,The comparison results between automatic continuous monitoring and Immediate measurement show the greatest relative difference.[Conclusions]Automatic continuous monitoring and cumulative dose monitoring have better comparability and substitution.Due to the characteristics of its monitoring methods and instruments,Immediate measurement has limitations in the fixed-point monitoring of radiation environmental quality,and is more suitable for large-scale grid urban radiation environmental quality survey.

关 键 词：Γ辐射剂量率 自动连续监测 累积剂量监测 即时测量 En值 

分 类 号：X837[环境科学与工程—环境工程]