【作者】 倪卫冲； 王彩霞； 高国林； 杨金政； 田宇； 李素岐； 祁程； 王景丹；

【Author】 NI Wei-chong;WANG Cai-xia;GAO Guo-lin;YANG Jing-zheng;TIAN Yu;LI Su-qi;QI Cheng;Wang Jing-dan;Airborne Survey and Remote Sensing Center of Nuclear Industry;China National Airborne Monitoring Center for Nuclear Emergency;CNNC Key Laboratory of Uranium Resource Geophysical exploration Technology;Shandong Nuclear Power Co.,Ltd.;

【机构】 核工业航测遥感中心； 国家核应急航空监测中心； 中核集团铀资源地球物理勘查技术中心(重点实验室)； 山东核电有限公司；

【摘要】 2013年12月28日至2014年1月14日,在海阳核电厂周围地区首次实施了环境辐射本底航空测量调查,完成航空测量面积5 829.6 km²,采集了11.6万余组航空测量数据。查明了海阳核电厂周围地区环境辐射本底水平、天然放射性核素⁴⁰K、²³⁸U(²²⁶Ra)、²³²Th质量活度的分布;环境辐射水平显现为"中部及西北与东北局部地区偏高、西南与北部地区中低水平"的特点。¹³⁷Cs和⁶⁰Co面活度均低于探测限,未发现有可分辨的其它人工放射性核素分布,亦未发现失控的放射源,发现了2个航测辐射偏高点（区）,均为地质环境中天然放射性核素偏高引起。更多还原

【Abstract】 During December 28 th in 2013 to January 14 th in 2014,we firstly implemented airborne gamma-ray spectrometric survey for investigating environmental radiation background measurements around Haiyang NPP constructing.Airborne survey covered 5 829.6 km~2 areas of the earth’s surface and collected 116 111 groups’ data.The project found out environmental radiation background measurements and the activity of natural Potassium-40,Uranium-238(Radium-226),and Thorium-232 around Haiyang NPP.It is the conclusion that the dose rate of northwest area is highest,the middle area and northeast area are higher,and southwest and north area are lower around Sanmen NPP.The activity of manmade radionuclide Cesium-137 and Cobalt-60 are less than their detective limits.We didn’t find out resoluble manmade radionuclide and radioactive sources lost.We found two airborne radiation hot-point’s,they are aroused by higher natural radiation in geological environment.更多还原