2013年某口岸入境集装箱和货物放射性监测情况分析

Radiation monitoring of entry containers and cargoes at a port in 2013

目的分析2013年某口岸入境集装箱及其装载的货物施行通道式放射性监测的情况,为口岸开展放射性监测工作提供科学指导。方法使用通道式放射性监测系统对2013年从某口岸入境的集装箱及其装载的货物实施放射性监测,对放射性异常的实施人工排查。结果 2013年该口岸发生入境集装箱及货物放射性异常37批65标箱,分别占监测总批次、总箱量的2.78‰、2.88‰。通道式放射性监测系统计数率和人工实测值存在显著正相关。结论配备通道式放射性监测系统是口岸强化放射性监测的有效手段,应重视对通道式放射性监测系统数据的应用。

Objective To analyze the radiation monitoring of entry containers and cargoes,and to provide guidelines for radiation monitoring at ports. Methods The radioactivity of the entry containers and cargoes at a certain port was monitored with channel radiation monitoring system, 2013. The containers would be detected manually when the system alarmed. Results There were 37 batches which including 65 TEU was recognized as radiation abnormal,accounting for 2.78‰ and 2.88‰ of the total batches and TUE,respectively. Channel radiation monitoring system count rate was significantly positive related to the manual detected values. Conclusion Channel radiation monitoring system was effective to strengthen monitoring of radioactivity at ports. Data provided by channel radiation monitoring system was useful when the events of radioactivity exceed the standard were dealt with.