^(137)Cs,^(60)Co大面积航空平面源的制备技术  

Development Technology for ^(137)Cs,^(60)Co Large Aero Plane Source

作　　者：孙保山 张积运[2] 陈细林[3] 胡明考[2] 梁永顺[2] 杜晓立[2] 

机构地区：[1]湖南省核工业地质调查院,长沙410011 [2]核工业航测遥感中心,石家庄050002 [3]中国原子能科学研究院,北京102413

出　　处：《宇航计测技术》2015年第1期71-75,78,共6页Journal of Astronautic Metrology and Measurement

摘　　要：用于校准航空γ谱仪的137Cs,60Co大面积航空平面源对传统的涂刷制源技术提出了挑战,为确保平面上的均匀性,借鉴现代网格点阵喷涂技术,将137Cs,60Co两种放射性标准溶液分别定量滴注在底衬滤纸上,晾干后热塑封并用环氧树脂将塑封片固定在梯形铝板上,由8块梯形铝板拼接为边长1m的正六边形航空平面源。制备的航空平面源的扩展不确定度(k=2)为4%,不均匀性优于10%。For the challenge of traditional fabrication method for ^137 Cs and ^60 Co aero plane source in aero gamma spectrometer calibration, and ensure the uniformity of the plane, the modern grid lattice spraying technology was adopt, radioactive standard solution of ^137 Cs and ^60 Co were quantitative drip on the bottom liner filter paper individually, heat sealing after dried, fixed the plastic package slice on the trapezoidal aluminium plate with epoxy resin. 8 blocks of aluminium plate compose plane source of regu-lar hexagon side length of 1m. The expanded uncertainly （k =2） of plane source is 4% , the heterogeneity is better than 10% .

关 键 词：航空平面源 制备技术 

分 类 号：TB98[一般工业技术—计量学] TL84[机械工程—测试计量技术及仪器]