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新疆某铀矿是从1970～1979年由土法开采、冶炼逐渐转变为机械化生产的企业。它分为矿山区、大水冶厂区和小水冶厂区。矿石为花岗岩石,其U_3O_3的平均品位为0.2%。全矿区总人口为4600人,职工人数为1882人。为了解该矿区停产10年后的环境放射性污染及放射职业者的受照射情况,我们于1989年对铀矿生产区及周周区域居民村的环境进行了γ外照射剂量率的测定,现将结果分析综述如下。
A uranium mine in Xinjiang is from the mining of the earth law from 1970 to 1979, smelting gradually transformed into mechanized production enterprises. It is divided into the mine area, a large watermelon area and a small watermelon area. Ore is granite, the average grade of U_3O_3 is 0.2%. The total mining population of 4600 people, the number of workers for the 1882 people. In order to understand the environmental radioactive contamination 10 years after the cessation of production in the mine and the exposure of radiographers, we conducted the measurement of γ external radiation dose rate in the environment of uranium-producing areas and surrounding villages in 1989. Now, The results are summarized as follows.