α谱仪探测器和面源不同轴情况下几何因子的计算  

Calculation of Geometric Factor on Condition for α Detector and Surface Source Being Not Coaxial

作　　者：何希[1] 雷震[1] 巨凌军[1] 杨晓燕[1] 金玉仁[1] 申茂泉[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《原子能科学技术》2010年第B09期58-62,共5页Atomic Energy Science and Technology

摘　　要：使用投影法计算了α谱仪探测器和面源不同轴情况下的几何因子,并与实验结果进行了比较。结果表明,不同轴距情况下,α谱仪探测器和面源的几何因子与实验测量结果差异基本一致,对α谱仪刻度和实际测量时几何位置引起的不确定度的评估有参考价值。A geometric factor was calculated using projection method on condition for α detector and surface source being not coaxial, and compared with experimental result. The differences between the geometric factor and experimental result are mainly consistent. The study is beneficial to α spectrometer calibration and uncertainty evaluation result from the geometric position in the routine measurement.

关 键 词：投影法 几何因子 圆形探测器 

分 类 号：TL817.2[核科学技术—核技术及应用]