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自从1980年8月在江苏省镇江港进行了国内首次放射性示踪沙试验以后,今年我所又与有关单位协作,在长江镇扬河段、杭州湾和长江口相继进行了三次测验。三次试验都使用放射性钪—46玻璃沙作示踪沙,其半衰期为81天,γ—射线能量分別为0.88和1.12兆电子伏。现将各次测验情况概述于下: 令年四月间,我所与镇江港整治委员会和江苏省卫生防疫站协作,在长江下游镇扬河段征润洲北
Since the first radioactive tracer sand test was conducted in Zhenjiang Port, Jiangsu Province in August 1980, this year, in collaboration with other units, I conducted three tests one after another in Zhenyang section of the Yangtze River, Hangzhou Bay and the mouth of the Yangtze River. In all three experiments, radioactive scandium-46 glass sand was used as a tracer sand with a half-life of 81 days and gamma-ray energies of 0.88 and 1.12 MeV, respectively. Now the situation of each test is summarized in the following: In April, I collaborate with Zhenjiang Port Regulation Commission and Jiangsu Provincial Health and Epidemic Prevention Station,