航空放射性测量的模拟计算  

Simulate Calculation of Airborne Radioactivity Measuring

作　　者：张法磊[1] 邵晖[1] 李润新[1] 程松[1] 胡俊丽[1] 

机构地区：[1]防化研究院,北京102205

出　　处：《核电子学与探测技术》2011年第9期1058-1061,共4页Nuclear Electronics & Detection Technology

摘　　要：航测系统刻度主要有实验刻度法、模拟实验刻度法、Beck法和蒙特卡洛法。将模拟实验刻度法与蒙特卡洛方法结合,通过MCNP4c程序对系统进行模拟,计算不同高度下对点源的计数,并与木板模拟实验结果对比,得到航测系统在不同高度下计数率的变化规律,并计算出转换因子公式,对今后航空放射性测量高度校正的研究具有指导意义。Airborne radioactivity measuring system calibration methods includes experimental scale method,simulation experiments scale method,Beck and Monte Carlo method.It uses simulation experiments scale method combined with Monte Carlo methods,simulation calculate the point sources count of different heights by MCNP4c,and comparison with the experimental results of wood to get variation law of the counting rate at different altitudes and calculate the conversion factor formula,it has guiding significance in future research of airborne radioactivity survey high degree correction.

关 键 词：蒙特卡罗 转化因子 木板 

分 类 号：TL81[核科学技术—核技术及应用]