管道中放射源位置的滤波估计方法  

Filter Estimation Method of Radioactive Source Position in Pipeline

作　　者：杨琳 YANG Lin(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《山东化工》2025年第6期182-185,共4页Shandong Chemical Industry

摘　　要：针对放射源在管道中驻留时难以定位的问题,提出一种简单易行的检测方法--滤波估计的放射源位置计算方法:首先,建立管道的三维模型;然后,沿规划路线移动采集辐射计数率;此后,根据三维模型定义估计空间,并执行滤波算法,完成权值更新和归一化、重采样、自适应更新过程;最后,根据收敛后的粒子集计算放射源位置。实验证明该方法可正确工作。In response to the difficulty of locating radioactive sources when they are stationary in pipelines,this paper proposes a simple and practical detection method-the method of calculating the position of radioactive sources using filtering estimation:First,a three-dimensional model of the pipeline is established;Then,radiation detectors are moved along a planned route to collect radiation counts;After that,the estimated space is defined based on the three-dimensional model,and the filtering algorithm is executed to complete the weight update,normalization,resampling,and adaptive update process;Finally,the position of the radioactive source is calculated based on the converged particle set.The experiment proves that the method can work correctly.

关 键 词：放射源定位 三维模型 滤波估计 

分 类 号：TE832[石油与天然气工程—油气储运工程]