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叙述了用高气压电离室环境连续监测仪连续测量核设施气态流出物γ辐射剂量率的技术和方法。总结了一台连续监测仪在两座实验性核反应堆(15兆瓦重水堆和3.5兆瓦轻水游泳池式反应堆)附近环境中,连续测量三年(1990～1992)所获得的33450个数据资料。给出由于反应堆排放的惰性气体烟羽产生的外照射剂量。最高年份(1992年)值为53.8μSv,仅为天然本底值的9％。监测结果与用有限烟羽大气扩散模式计算结果进行了比较,在62％范围内一致。
The technique and method for continuous measurement of γ radiation dose rate of gaseous effluent from nuclear facilities by continuous atmospheric pressure ionization chamber environment monitor are described. Summarizes a continuous monitor of 33450 data obtained over a three-year period (1990-1992) from two experimental nuclear reactors (15MW DWR and 3.5MW light-water swimming pool reactors) in a continuous environment. The external exposure dose due to the inert gas plume emitted by the reactor is given. The highest year (1992) value is 53.8 μSv, which is only 9% of the natural background value. The results of the monitoring are compared with the results calculated using the atmospheric diffusion model with limited plumes and are consistent within 62%.