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路面γ辐射监测仪是一种用于对核设施和核电厂内路面和周围环境的放射性污染进行监测的车载放射性监测设备,可以实现对核设施和核电站厂区各处的放射性污染的及时快速监测。文章着重介绍了大面积塑料闪烁体(长1000mm×宽500mm×厚50mm)在路面辐射监测中的应用、数字化模拟放大电路的设计,及通过RS485总线方式传输探测信号的技术。并对路面辐射监测技术设计的重点如等速测量、恒温控制、工艺设计等方面做了进一步的阐述。
Pavement gamma radiation monitor is an on-board radioactive monitoring device used to monitor the radioactive contamination of nuclear facilities and the pavement and surrounding environment in nuclear power plants. It can realize the prompt and rapid monitoring of radioactive contamination in nuclear facilities and nuclear power plant sites. This article focuses on the application of large area plastic scintillator (1000mm long × 500mm wide and 50mm thick) in the monitoring of road surface radiation, the design of digital analog amplifier circuit and the transmission of detection signal through RS485 bus. And further elaborates on the key points of pavement radiation monitoring technology design such as constant speed measurement, constant temperature control, process design and so on.