Design of an atmospheric muon tomographer for material identification based on CORSIKA+GEANT4 simulations
In recent years, muon tomography has turned into a powerful and innovative technique for non-invasive imaging of large and small structures with applications in different areas like geology, archaeology, security, etc. We present the design and simulation of a transportable and easy to construct det...
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Main Authors | , |
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Format | Journal Article |
Language | English |
Published |
22.03.2024
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Subjects | |
Online Access | Get full text |
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Summary: | In recent years, muon tomography has turned into a powerful and innovative
technique for non-invasive imaging of large and small structures with
applications in different areas like geology, archaeology, security, etc. We
present the design and simulation of a transportable and easy to construct
detector based on plastic scintillator and Silicon photomultipliers current
technology. From a flux of cosmic rays reaching the atmosphere we simulated
atmospheric muons at ground using CORSIKA. The detector and the object to
analyze are simulated with GEANT4, where the previously obtained muon flux is
transported. We use two methods for muon tomography to differentiate objects
made of different materials: absorption and scattering. The statistical
differences for several object sizes and materials are quantified. Using a
threshold of 3 $\sigma$ in the first method, we conclude that materials made of
lead can be differentiated from objects made of other materials. The
observation time needed to differentiate an object made of lead from one of
aluminum was 4.9 and 9.9 days using the first and second method, respectively.
In general, the absorption method gives the best results. |
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DOI: | 10.48550/arxiv.2403.14948 |