中华放射医学与防护杂志
中華放射醫學與防護雜誌
중화방사의학여방호잡지
Chinese Journal of Radiological Medicine and Protection
2015年
9期
692-695
,共4页
土壤放射性%空间分布%HPGeγ能谱仪%地理信息系统(GIS)
土壤放射性%空間分佈%HPGeγ能譜儀%地理信息繫統(GIS)
토양방사성%공간분포%HPGeγ능보의%지리신식계통(GIS)
Soil radioactivity%Spatial distribution%HPGe γ-ray spectrometry%Geographic information system (GIS)
目的 调查京津冀接壤区域土壤中238U的放射性水平,绘制238U活度浓度空间分布精细图.方法 以10 km×10 km网格法采集京津冀接壤区域土壤样品,用HPGe γ能谱仪测量土壤样品中238U的活度浓度,借助MAPGIS软件绘制京津冀接壤区域表层土壤中238U的活度浓度分布图.结果 共采集和测量了416份土壤样品,238U的活度浓度范围为0.1 ～ 106.0 Bq/kg,平均值为34.7 Bq/kg,238U活度浓度分布图显示京津冀接壤区域表层土壤大部分地区238U活度浓度在15～55 Bq/kg之间.结论 绘制京津冀接壤区域238U的放射性空间分布,以图形显示238U活度浓度分布,对该区域环境放射性评价以及放射性物质转移研究等具有重要意义.
目的 調查京津冀接壤區域土壤中238U的放射性水平,繪製238U活度濃度空間分佈精細圖.方法 以10 km×10 km網格法採集京津冀接壤區域土壤樣品,用HPGe γ能譜儀測量土壤樣品中238U的活度濃度,藉助MAPGIS軟件繪製京津冀接壤區域錶層土壤中238U的活度濃度分佈圖.結果 共採集和測量瞭416份土壤樣品,238U的活度濃度範圍為0.1 ～ 106.0 Bq/kg,平均值為34.7 Bq/kg,238U活度濃度分佈圖顯示京津冀接壤區域錶層土壤大部分地區238U活度濃度在15～55 Bq/kg之間.結論 繪製京津冀接壤區域238U的放射性空間分佈,以圖形顯示238U活度濃度分佈,對該區域環境放射性評價以及放射性物質轉移研究等具有重要意義.
목적 조사경진기접양구역토양중238U적방사성수평,회제238U활도농도공간분포정세도.방법 이10 km×10 km망격법채집경진기접양구역토양양품,용HPGe γ능보의측량토양양품중238U적활도농도,차조MAPGIS연건회제경진기접양구역표층토양중238U적활도농도분포도.결과 공채집화측량료416빈토양양품,238U적활도농도범위위0.1 ～ 106.0 Bq/kg,평균치위34.7 Bq/kg,238U활도농도분포도현시경진기접양구역표층토양대부분지구238U활도농도재15～55 Bq/kg지간.결론 회제경진기접양구역238U적방사성공간분포,이도형현시238U활도농도분포,대해구역배경방사성평개이급방사성물질전이연구등구유중요의의.
Objective To survey the 238U radioactivity level in the surface soil in the Beijing-Tianjin-Hebei Border (BTHB) region,and to prepare a high resolution distribution map of 238U activity concentrations.Methods The soil samples were collected in a grid (10 km × 10 km).The activity concentrations of 238U in soil samples were measured by using HPGe γ spectrometry.The distribution of the activity concentrations of 238U in soil samples was mapped by the aid of MAPGIS software.Results In total,416 samples were collected and measured.The activity concentrations of 238U were in the range of 0.1-106.0 Bq/kg,with an average of 34.7 Bq/kg.The 238U activity concentration distribution map showed that 238U activity concentration was in the range of 15-55 Bq/kg mostly on the surface soil in the BTHB region.Conclusions The map of 238U activity concentration shows the distribution of 238U activity concentration in the BTHB region.It is of importance to map the distribution of 238U activity concentration in the BTHB region,by converting a huge amount of data into the simple and intuitive graphics,and for evaluating the regional environmental radioactivity and studying the radioactive substance migration within the locality.
