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稀土元素往往与铀、钍、镭等放射性核素共生。因此,稀土矿水冶作业场所存在着α、β和γ射线危害因素。γ射线对物质的穿透能力强。人体主要受其外照射。我们试图通过对广东阳江某稀土矿水冶厂的选矿和冶炼等作业场所γ射线辐射水平的测定,估算在不同作业岗位上工人受到γ射线外照射年剂量大小,为改善防护设施、观察长期在低照射率的γ射线作用下人体可能出现的效应提供剂量依据。
Rare earth elements often with uranium, thorium, radium and other radionuclide symbiosis. Therefore, rare earth mine water metallurgy operating sites exist α, β and γ-ray hazards. γ-ray penetration of the material ability. The human body is mainly affected by its external exposure. We tried to estimate the radiation dose of γ-rays emitted by workers at different job posts through γ-ray irradiation at the ore dressing and smelting sites of a rare earth mine in Yangjiang, Guangdong Province. In order to improve the protective facilities, Low dose of gamma rays under the effect of the human body may provide a dose based on the effect.