A High Spatial Resolution Muon Tomography Prototype System Based on Micromegas Detector

Wang, Yu; Zhang, Zhiyong; Liu, Shubin; Shen, Zhongtao; Feng, C. Q.; Liu, Jianguo; Liu, Yulin

doi:10.1109/tns.2021.3137415

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…A muon tomography experiment using four detectors were conducted by Ref. [12][13][14] and their experimental data after 24 hours of exposure are used in this work. It is challenging to apply the reconstruction algorithm directly to experimental data.…”

Section: Imaging Reconstruction Resultsmentioning

confidence: 99%

“…In general, the reconstruction of the experimental data is quite challenging due to that the muon intensity from the cosmic ray is low. In this work, a modified ASR algorithm and PoCA algorithm was proposed and applied to experimental data generated by a one-day muon tomography experiment [12][13][14]. In this modified ASR algorithm, the event number threshold is employed to filter out edge noise and the fluctuation from the limited event numbers, and to improve image clarity.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Application experiment and partial improvement of traditional muon scattering imaging algorithm

Wang,

Qi,

Chen

2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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Muons produced by cosmic rays can be used to reconstruct images by analyzing their energy and angle information after passing through a medium. These subatomic particles have strong penetrating ability and are sensitive to high-Z (high atomic number) materials, making them ideal for large-scale structural imaging and nuclear material detection, which is critical for maintaining nuclear safety. However, muon tomography faces challenges such as low natural muon flux and difficulties in image reconstruction. Therefore, developing effective imaging reconstruction algorithms is crucial for muon tomography. In this study, we present modifications to the ASR algorithm, then apply the modified version to experimental data. Our results show that the images reconstructed using the modified ASR algorithm exhibit good quality, indicating the algorithm's effectiveness.

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Section: Imaging Reconstruction Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Application experiment and partial improvement of traditional muon scattering imaging algorithm

Wang,

Qi,

Chen

2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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show abstract

“…• Currently a position resolution of the track detector better than 100 μm has already been achievable in a MST system with gas detectors, such as 85 μm of Micromegas [25] and 50 μm of GEM detetor [26]. The main advantage of the SciFi tracker lies in its solid and compact structures, which can be portable and more robust in real applications.…”

Section: Summary and Discussionmentioning

confidence: 99%

Towards a muon scattering tomography system for both low-Z and high-Z materials

Chen

Li²,

et al. 2023

J. Inst.

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Muon scattering tomography (MST) is a non-destructive technique to image various materials by utilizing cosmic ray muons as probes. A typical MST system with a two-fold track detectors is particularly effective in detecting high-Z materials (e.g. nuclear materials), but difficult to recognize low-Z materials (e.g. explosive materials). In this work, we present a concept of MST system to discriminate both low-Z and high-Z materials by extra measuring momentum of low-energy muons with a Cherenkov detector. A toy Monte Carlo simulation to describe detector responses and multiple scatterings of a muon tracking through materials is developed for statistical tests. Based on momentum-dependent track reconstruction and image reconstruction algorithm, we evaluate separation powers of different materials in the system. The results show that momentum measurement of low-energy muons and accurate track reconstruction can improve separation power of low-Z materials significantly. This may enable the MST system to detect both low-Z and high-Z materials with cosmic ray muons in the whole energy range.

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“…By visualizing all reconstructed data points and their corresponding ratio values within the measurement area, an image can be generated. A prototype of muon tomography, called the muon Scattering and Transmission imaging facility ( STC) 5 , was developed. It included eight Micromegas detectors 9 , 10 , four front-end electronics cards (FECs), a general data acquisition (DAQ) board, a server, two scintillators for trigger generation, and several high-voltage (HV) modules.…”

mentioning

confidence: 99%

Research on rapid imaging with cosmic ray muon scattering tomography

Wen

2023

Sci Rep

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Cosmic ray muons tomography is a non-destructive imaging technique that uses the natural radiation of cosmic ray muons to create tomographic images of objects. This article presents a novel imaging algorithm that effectively utilizes experimental measurement data to achieve rapid and clear imaging of cosmic ray muons. A clear image can be obtained with only 20 min of measurement time and approximately 200 effective muons. However, the current detection flux is only about 0.044 cm$$^{-2}$$ - 2 min$$^{-1}$$ - 1 , which is significantly lower than the natural cosmic ray flux of about 1 cm$$^{-2}$$ - 2 min$$^{-1}$$ - 1 .

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A High Spatial Resolution Muon Tomography Prototype System Based on Micromegas Detector

Cited by 7 publications

References 22 publications

Application experiment and partial improvement of traditional muon scattering imaging algorithm

Application experiment and partial improvement of traditional muon scattering imaging algorithm

Towards a muon scattering tomography system for both low-Z and high-Z materials

Research on rapid imaging with cosmic ray muon scattering tomography

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