核设施环境连续监测  

CONTINUOUS MONITORING IN THE ENVIRONMENT NEAR NUCLEAR FACILITIES

作　　者：岳清宇[1] 肖雪夫[1] 金花[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1期35-43,共9页Atomic Energy Science and Technology

摘　　要：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吸收剂量率的技术和方法，总结了１台连续监测仪在２座实验性核反应堆（１５ＭＷ重水堆和３．５ＭＷ轻水游泳池式反应堆）附近环境中，连续测量３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有效剂量。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。The report describes techniques and methods on continuous monitoring in the environmental γ radiation dose rate due to the effluence from nuclear facilities with a high pressure argon ionization chamber.About 33450 individual record data for three years (1990—1992) were obtained by a continuous monitor in the environment near the two reactors (15 MW heavy water reactor and 3 5 MW light water swimming pool reactor).These data give the absorbed dose caused by noble gas plume from the reactors.The maximum value of annual effective dose is 53 8 μSv in 1992,which is only equal to 9% of natural background level.The monitoring results are compared with the computed results for the finite cloud atmospheric diffusion models,and they are in agreement within 62%.

关 键 词：核设施 烟羽 连续监测 核电厂 

分 类 号：TL751[核科学技术—辐射防护及环境保护]