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本文报道了长城钢厂(以下简称长钢)室内外天然γ辐射水平及所致职工辐射剂量,以及部分原材料、产品的r辐射水平。 共测567个点,获得数据2392个,得出长钢天然γ辐射所致空气吸收剂量率平均值为室外10.53±0.71×10~(-8)Gy/h、室内14.42±1.26×10~(-8)Gy/h、野外10.56×10~(-8)Gy/h。天然辐射所致职工年有效剂量当量126μSV,年集体有效剂量当量为5.816人·SV。耐火砖、合金料钢材产品平均r辐射所致空气吸收剂量率分别为27.48×10~(-8)Gy/h,11.79×10~(-8)Gy/h和7.35×10~(-8)Gy/h.
This paper reports the indoor and outdoor natural γ radiation level of the Great Wall Steel Works (hereinafter referred to as the “Chang Steel”) and the radiation dose of the staff and workers as well as the r radiation level of some raw materials and products. A total of 567 points were measured and 2392 data were obtained. The average dose of air absorbed by natural gamma radiation in long steel was 10.53 ± 0.71 × 10 ~ (-8) Gy / h outdoors and 14.42 ± 1.26 × 10 ~ -8) Gy / h, the field of 10.56 × 10 ~ (-8) Gy / h. The annual effective dose equivalent of workers due to natural radiation is 126μSV, and the annual collective effective dose equivalent is 5.816 person · SV. The average dose rate of air absorbed by firebrick and alloy steel products was 27.48 × 10 -8 Gy / h, 11.79 × 10 -8 Gy / h and 7.35 × 10 -8, respectively. Gy / h.