摘要
详细推导了宇宙线缪子传统散射成像算法:径迹类重建算法中具有代表性的最近邻点算法(PoCA)以及统计类重建算法中的最大似然散射角算法(MLS)、最大似然散射角和位移算法(MLSD)和期望最大算法(EM)。介绍了新发展的成像方法。进行了模拟实验,模拟研究表明统计类重建算法具有更好的成像精度。
This paper derives the traditional scattering imaging algorithms of cosmic ray muons in detail:the point of closest approach(PoCA)algorithm,which is representative of the track reconstruction algorithm,the maximum likelihood scattering(MLS)algorithm,the maximum likelihood scattering and displacement(MLSD)algorithm and expectation maximization(EM)algorithm belonged to the statistical reconstruction algorithm.The newly developed imaging algorithms are introduced.Simulation study shows that the statistical reconstruction algorithm has better imaging accuracy.
作者
严江余
霍勇刚
侯林军
张全虎
YAN Jiang-yu;HUO Yong-gang;HOU Lin-jun;ZHANG Quan-hu(Rocket Force University of Engineering,Xi’an 710025,China)
出处
《核电子学与探测技术》
CAS
北大核心
2021年第3期359-365,共7页
Nuclear Electronics & Detection Technology
关键词
宇宙线缪子
成像算法
模拟研究
Cosmic Ray Muon
Imaging Algorithm
Simulation Study
