水中放射性就地监测设备的点源相对刻度方法  

Relative Calibration of Point Source for In-Situ Equipment Measuring Radioactivity in Water

作　　者：刘明健[1] 罗明[1] 闫学昆[1] 谷铁男[1] 

机构地区：[1]海军核化安全研究所,北京100077

出　　处：《辐射防护通讯》2014年第2期20-23,共4页Radiation Protection Bulletin

摘　　要：针对水中放射性就地测量设备的效率刻度问题,提出一种用点源替代液体源进行效率刻度的方法。通过蒙卡计算,分别得到溴化镧探测器对点源和体源的光电峰计数概率,并建立起点源与体源效率刻度的对应关系,以便于在实际应用中简化水中放射性监测设备的效率刻度。To address the problems in efficiency calibration of in-situ radioactivity measuring equipment ,an approach to efficiency calibration was presented using point source in lieu of liquid volume source .Through Monte Carlo calculation , photoelectric count efficiency of lanthanum bromide detector to point and volume sources are obtained respectively and the relationship of calibration efficiency were established between point and volume sources for simplified use of efficiency calibration in practice .

关 键 词：水中放射性 溴化镧探测器 效率刻度 

分 类 号：TL81[核科学技术—核技术及应用]