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本文简要介绍了兰州铀浓缩厂 1 96 1～ 1 985年期间放射性物质运输环境影响评价方法和结果。剂量计算采用国际原子能机构 (IAEA)提供给其成员国的 RADTRAN4放射性物质运输引起辐射影响的计算机程序。计算结果表明 ,在 1 96 1～ 1 985年期间的正常运输过程中 ,对机组人员的个人年平均有效剂量当量为 1 5 μSv;对装卸人员为 1 .0 m Sv;对铁路沿线 1 km范围内公众、旅客列车内乘客、运输列车停运期间周围人员的个人年平均有效剂量当量分别为 0 .1 4、1 .0、2 .7μSv。在各类受照人员中 ,装卸人员受照剂量最高 ,但其年平均集体有效剂量当量仅为 7× 1 0 - 3人· Sv。本厂自投产至今从未发生过放射性物质运输事故。可见 ,兰州铀浓缩厂放射性物质运输是安全的 ,对环境产生辐射影响甚微
This article briefly introduces the methods and results of environmental impact assessment of radioactive material transport in Lanzhou uranium enrichment plant from 1986 to 1985. Dosage calculation Computer program that uses radiation from RADTRAN4 radioactive material transport provided by the International Atomic Energy Agency (IAEA) to its member states. The calculation results show that the average annual effective effective dose equivalent for crew members is 15 μSv during normal transport from 1961 to 1985 and that for loaders is 1.0 m Sv. For the 1 km range along the railway line Within the public, passenger trains passengers, transport trains around the personal annual average effective dose equivalent were 0.14,1.0,2 .7 μSv. Among the various types of exposed workers, the loading and unloading personnel received the highest dose, but their annual average collective effective dose equivalent was only 7 × 10-3 people · Sv. Since the factory has put into operation so far never happened radioactive material transportation accident. Can be seen, Lanzhou uranium enrichment plant radioactive material transport is safe, minimal impact on the environment radiation