A plastic scintillator-based muon tomography system with an integrated muon spectrometer
A plastic scintillator-based muon tomography system with an integrated muon spectrometer
复制标题
基于塑料闪烁体的μ介子层析成像系统与集成μ介子光谱仪
DOI：
10.1016/j.nima.2015.06.054
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发表时间：
2015-10-21
影响因子：
1.4
通讯作者：
Waller, D.
中科院分区：
文献类型：
--
作者：
Anghel, V.;Armitage, J.;Waller, D.
一个μ子散射层析成像系统，它使用挤出塑料闪烁棒的μ子跟踪和一个专用的μ子光谱仪，测量散射通过钢板已建成并成功地进行了测试。大气μ介子探测效率平均为97%，平均固有命中分辨率为2.5 mm。除了创建各种感兴趣的物体的三维图像，已经进行了定量研究，以调查包括μ介子动量测量的影响时，试图检测高密度，高Z材料。正如预期的那样，动量信息的增加提高了系统的性能。对于一个固定的数据采集时间为60秒和一个固定的假阳性分数，检测到一个目标的概率增加时，使用动量信息。这是第一次演示使用μ子动量信息从专用光谱仪测量μ子散射断层扫描。皇冠版权所有（C）2015由Elsevier B.V.
A muon scattering tomography system which uses extruded plastic scintillator bars for muon tracking and a dedicated muon spectrometer that measures scattering through steel slabs has been constructed and successfully tested. The atmospheric muon detection efficiency is measured to be 97% per plane on average and the average intrinsic hit resolution is 2.5 mm. ln addition to creating a variety of three-dimensional images of objects of interest, a quantitative study has been carried out to investigate the impact of including muon momentum measurements when attempting to detect high-density, high-Z material. As expected, the addition of momentum information improves the performance of the system. For a fixed data-taking time of 60 s and a fixed fake positive fraction, the probability to detect a target increases when momentum information is used. This is the first demonstration of the use of muon momentum information from dedicated spectrometer measurements in muon scattering tomography. Crown Copyright (C) 2015 Published by Elsevier B.V.