重庆市典型矿区γ辐射剂量率研究  

Research into γ radiation dosage of representative mines in Chongqing

作　　者：郑阳华[1] 王里奥[1] 韩勇[1] 任利 张晚凉 李萍 李衣维 杜衡雁 吕旭晨 

机构地区：[1]重庆大学资源及环境科学学院,重庆400030 [2]重庆市辐射环境监督管理站,重庆400015

出　　处：《重庆工商大学学报（自然科学版）》2007年第4期398-402,共5页Journal of Chongqing Technology and Business University:Natural Science Edition

摘　　要：筛选了重庆市10种比较有代表性矿物的20个矿区,开展了矿区γ辐射水平研究;各矿区之间γ辐射剂量率差距比较明显,γ辐射剂量率最大值为439 nGy/h(4#煤矿矿区),γ辐射剂量率最小值为61 nGy/h,平均水平为119.8 nGy/h。通过与环境对照点γ辐射剂量率监测数据的比较,大部分矿区γ辐射剂量处于平均值附近,2#煤矿、4#煤矿和铝矿矿区γ辐射剂量率水平明显高于对照点监测最高值;预测各矿区所致公众、职业照射有效剂量最大值分别为0.61、0.54 mSv/a,均未超过年剂量限值。The γradiation dosage in 20 areas of 10 representative mines in Chongqing was researched. The γradiation dosage level of 20 mine areas is different. The maximun value is 439 nGy/h（4^# coal mine） and the minimum value is 61 nGy/h and the average value is 119.8 nGy/h. Compared with the collated inspecting points, most of the mine areas approach the average level of the collated inspecting points, but the γradiation dosage of 2^# coal mine ,4^# coal mine and aluminium mine is bigger than maximum value of the collated inspecting points. The availability maximum dosage to public and worker which was checked is 0.61 mSv/a,0.54 mSv/a,respectively , which is under the prescribed level.

关 键 词：矿区 Γ辐射剂量率 监测点 

分 类 号：X651[环境科学与工程]