Performance simulation study of plastic scintillator arrays for stability monitoring applications

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Engineering and Technology Pub Date : 2025-01-01 DOI:10.1016/j.net.2024.08.037

Z. Chen , Z.W. Pan , Z. Wang , Z.Y. He , Z.B. Lin , T.Y. Yang , Y. Wang , Z.Y. Zhang , J.D. Liu , S.B. Liu , B.J. Ye , L.W. Chen , Y.H. Yu

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Abstract

The characteristics of high energy cosmic-ray muons make them strongly penetrative in materials. It has great potential to monitor the stability of buildings by reconstructing the tracks of cosmic-ray muons. In this work, a buildings stability monitoring system based on plastic scintillator strips is proposed. The monitoring system consists of a single-plane upper telescope to record the incoming track of a muon, and a three-plane lower telescope to track its outgoing trajectory. Every detector plane is formed by orthogonally placed scintillator strips. The impacts of the scintillator geometry and spatial placement on the stability monitoring precision are carefully studied using Geant4 simulations. A sub-millimeter position resolution is achievable by selecting a proper data taking time. The triangular scintillator strips always outperform rectangular ones of the same size and placement. Two empirical formulas have been derived to quantitatively estimate the position resolution with respect to the abovementioned influential factors. In addition, the comprehensive effects of multiple parameters are also studied. Accordingly, triangular scintillator strips will be utilized in the construction of a real monitoring system with better performance and less detection channels. The simulation study in this work can provide good guidance for the manufacturing of triangular strips and their experimental configurations.

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用于稳定性监测的塑料闪烁体阵列性能仿真研究

高能宇宙射线μ子的特性使其在物质中具有很强的穿透性。通过重建宇宙射线介子的轨迹来监测建筑物的稳定性具有很大的潜力。本文提出了一种基于塑料闪烁条的建筑物稳定性监测系统。监测系统由单平面上方望远镜记录μ子的入射轨迹和三平面下方望远镜跟踪其出射轨迹组成。每个探测器平面都是由正交放置的闪烁体条构成的。利用Geant4仿真研究了闪烁体的几何形状和空间位置对稳定性监测精度的影响。通过选择适当的数据采集时间，可以实现亚毫米的位置分辨率。三角形的闪烁条总是比相同大小和位置的矩形闪烁条表现更好。导出了两个经验公式，可以定量地估计相对于上述影响因素的位置分辨率。此外，还研究了多个参数的综合影响。因此，三角形闪烁条将用于构建具有更好性能和更少检测通道的实际监测系统。本文的仿真研究可以为三角带材的制作及其实验配置提供良好的指导。

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来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development