Characterization of the muography background using the Muon Telescope (MuTe)

Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020) Pub Date : 2021-02-21 DOI:10.22323/1.390.0984

J. Pena-Rodr'iguez, L. N'unez, Hernán Asorey

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引用次数: 6

Abstract

In this work, we estimate the background components in muography using the MuTe: a hybrid muon telescope composed of two subdetectors –a scintillator hodoscope and a Water Cherenkov Detector (WCD). The hodoscope records the trajectories of particles crossing the telescope, while the WCD measures their energy loss. The MuTe hodoscope reconstructs 3841 different directions with an angular resolution of 32 mrad for an inter-panel distance of 2.5 m. The spatial resolution can reach ∼ 25.6m assuming an 800m distance to the target. The WCD measures the deposited energy from 50 MeV to 1.5 GeV with a resolution of 0.72MeV. MuTe discriminates muography background sources such as: upward coming muons, scattered muons, the soft component of Extensive Air Showers (EAS), and particles arriving simultaneously. They are ﬁltered by using measurements of deposited energy (WCD) and Time-of-Flight. The WCD differentiates single muons, electrons/positrons, and multiparticle events. On the other hand, the ToF measurements allow us to estimate the muon momentum establishing an energy threshold to decrease the

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利用μ子望远镜(MuTe)表征微成像背景

在这项工作中，我们使用MuTe(一种由两个子探测器组成的混合μ子望远镜)来估计微影成像中的背景成分——闪烁体hodoscope和Water Cherenkov Detector (WCD)。hodoscope记录粒子穿过望远镜的轨迹，而WCD则测量它们的能量损失。MuTe反射镜在板间距离为2.5 m的情况下，以32 mrad的角分辨率重建了3841个不同的方向。假设距离目标800米，空间分辨率可以达到~ 25.6米。WCD测量的沉积能量范围从50 MeV到1.5 GeV，分辨率为0.72MeV。MuTe可以区分背景源，如:向上的μ子、散射的μ子、大范围空气淋点(EAS)的软成分和同时到达的粒子。它们通过测量沉积能量(WCD)和飞行时间来过滤。WCD区分单μ子、电子/正电子和多粒子事件。另一方面，ToF测量允许我们估计μ子动量，建立一个能量阈值来降低

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Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020)

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