| 低放辐照工程退役的辐射环境监测 |
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| 引用本文： | 王红海,熊超,花永涛,刘端. 低放辐照工程退役的辐射环境监测[J]. 核电子学与探测技术, 2016, 0(1): 103-107. DOI: 10.3969/j.issn.0258-0934.2016.01.025 |
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| 作者姓名： | 王红海 熊超 花永涛 刘端 |
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| 作者单位： | 1. 江西省核工业地质局测试研究中心，南昌330002; 江西核工业环境保护中心，南昌330002;2. 开封市环保局辐射监督管理站,开封,475000;3. 绵阳市辐射环境监测站,绵阳,621000 |
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| 摘 要： | 采用室内外X-γ剂量率、室内β表面污染水平、样品取样及活度浓度分析等方法对某地需退役的低放辐照工程的辐照室、废物坑、废水池及其周边土壤进行辐射监测。结果表明:室外γ剂量率平均值为118.1 nGy/h,扣除宇宙射线本底后水平正常,属环境本底范围;室内γ剂量率平均值为259.9nGy/h,明显高于室外水平,且高值热点区域呈东北向展布;土壤取样结果呈现出核素在浅层土壤中富集、深层无明显异常的特征;水池中水体~(60)Co高异常为地下水管破裂导致,~(60)Co随水体沉积于池底底泥中。
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| 关 键 词： | 辐照工程 低放 辐射监测 剂量率 |
Environmental Radiation Monitoring during Retirement of Low Level Radioactive Decommissioning Project |
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| Abstract: | This paper monitoring radiation level in irradiation chamber , waste pits , waste water tank and the surrounding soil of Low -level radiation engineering by using indoor and outdoor uses X ,γdose rate measure-ment ,Indoor βsurface contamination level measurement and sample analysis .The results showed that:Outdoorγdose rate average value is 118.1 nGy/h,which is within range of natural radioactive background after deduc-ting the cosmic ray background .Indoorγdose rate average value is 259 .9 nGy/h,Significantly higher than out-door levels , and the zone of high value was trend to northeast .Soil sampling results are presented characteristics that nuclides in the shallow soil enrichment but deep no obvious abnormalities . |
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| Keywords: | irradiation works Low level radiation radiation monitoring dose rate |
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