| 陕西省石煤矿放射性水平调查分析 |
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| 引用本文： | 刘中平,米莎,李亚军,曹志军,杨龙泉. 陕西省石煤矿放射性水平调查分析[J]. 铀矿地质, 2017, 0(5): 314-320. DOI: 10.3969/j.issn.1000-0658.2017.05.009 |
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| 作者姓名： | 刘中平 米莎 李亚军 曹志军 杨龙泉 |
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| 作者单位： | 1. 核工业203研究所,陕西咸阳,712000;2. 中陕核工业集团公司,陕西西安,710100;3. 核工业北京地质研究院,北京,100029 |
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| 摘 要： | 为了掌握陕西省石煤矿的辐射环境现状,对陕西省3个石煤矿进行了放射性水平调查,结果表明陕西省石煤中238 U、226 Ra平均比活度分别为当地环境本底的26~35倍、19~30倍,γ辐射水平为当地天然环境本底的4~7倍,各工作场所及周边环境的222 Rn及其子体浓度处于正常范围之内。石煤开发活动所致矿区作业人员、公众年附加有效剂量满足国家标准相关限值要求。
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| 关 键 词： | 外照射 内照射 附加有效剂量 天然放射性核素 |
Investigation and Analysis on Radioactivity Level of Bone-coal Mine in Shaanxi Province |
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| LIU Zhongping,MI Sha,LI Yajun,CAO Zhijun,YANG Longquan. Investigation and Analysis on Radioactivity Level of Bone-coal Mine in Shaanxi Province[J]. Uranium Geology, 2017, 0(5): 314-320. DOI: 10.3969/j.issn.1000-0658.2017.05.009 |
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| Authors: | LIU Zhongping MI Sha LI Yajun CAO Zhijun YANG Longquan |
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| Abstract: | In order to understand the radiation environment status of bone-coal mines in Shaanxi,radioactivity level of three bone-coal mines in Shaanxi Province was investigated.The investigation result showed that the mean specific activity of 238 U,226 Ra were respectively 26 ~ 35 times and 19 ~ 30 times higher than that of the background.The γ-radiation dose rate of the bone-coal was 4 ~ 7 times higher than background value of the local natural environment.The concentration of 222 Rn and its daughters in the workplace and the surrounding environment was within the range of normality.The additional effective dose of mine workers and the public which caused by the development and utilization of bone-coal are within the relevant national standard limit. |
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| Keywords: | external exposure internal exposure additional effective dose natural nuclides |
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