核设施环境 γ 辐射连续监测系统  

CONTINUOUS MONITORING SYSTEM OF ENVIRONMENTAL γ RADIATION NEAR NUCLEAR FACILITY

作　　者：金花[1] 岳清宇[1] 王文海[1] 

机构地区：[1]中国原子能科学研究院保健物理部

出　　处：《原子能科学技术》1997年第3期204-210,共7页Atomic Energy Science and Technology

摘　　要：研制的用于核设施周围环境γ辐射和事故应急连续监测系统由高气压电离室、集成化弱电流放大器、Ｖ－Ｆ变换器和智能化数据记录仪组成。通过标准ＲＳ－２３２－Ｃ接口转储到计算机上进行数据处理和绘图。该系统具有超阈报警，采集记录探测器输出信号和温度等功能。采用了高绝缘自动量程转换开关，测量范围为１０ｎＧｙ·ｈ－１－２０ｍＧｙ·ｈ－１。监测系统经长时间现场考验，工作性能稳定。The continuous monitor system for environmental γ radiation and accidental emergency near a nuclear facility is described in the paper.The continuous monitor system consists of high pressurized ionization chamber,integrated weak current amplifier,V f converter and intelligent data recorder.Microcomputer is used for data handling and plotting with standard RS 232 C interface.The data recorder has the functions of alarming over threshold and recording output signals of detector and temperature.The measurement range is from 10 nGy·h -1 to 10 mGy·h -1 ,because a high insulation switch automatically changing measurment range is used. The monitor system has been operating continuously for a long time with high stability and reliability.

关 键 词：核设施 连续监测系统 Γ辐射 电离室 辐射监测 

分 类 号：TL751[核科学技术—辐射防护及环境保护] TL811.1