A Monte Carlo study of three-dimensional muonic X-ray elemental imaging using MLEM-based reconstruction.

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Title: A Monte Carlo study of three-dimensional muonic X-ray elemental imaging using MLEM-based reconstruction.
Authors: Lin, Zebin1 (AUTHOR) zeb_lin@ecut.edu.cn, Huang, Fengyu1 (AUTHOR), Kang, Zechao2,3 (AUTHOR), Pan, Ziwen1,2,3 (AUTHOR) panzw19@ustc.edu.cn, Wu, Libo4 (AUTHOR), Wan, Jiangfeng1 (AUTHOR), Liu, Qi1 (AUTHOR), Zhang, Xiongjie1 (AUTHOR), Zou, Jijun1 (AUTHOR), Deng, Li5,6 (AUTHOR), Yu, Pei5,6 (AUTHOR), Chen, Liangwen5,6,7 (AUTHOR), Ye, Bangjiao2,3 (AUTHOR)
Source: Radiation Measurements. Jun2026, Vol. 194, pN.PAG-N.PAG. 1p.
Subjects: Image reconstruction, Computer simulation, Spatial resolution, Monte Carlo method, Elemental analysis, Nondestructive testing
Abstract: Muon-induced X-ray Emission (MIXE) is an emerging nondestructive elemental analysis technique with depth sensitivity. Owing to the high-energy characteristic muonic X-rays, MIXE offers the potential for three-dimensional elemental imaging inside bulk materials. To address the depth-direction blurring caused by the longitudinal spread of muon implantation, a multi-module three-dimensional imaging approach based on MLEM iterative reconstruction is proposed. The multi-module 3D imaging system was constructed using Geant4, and its performance was evaluated for single-element samples, multi-element configurations, and complex elemental distributions involving encapsulated structures. The influence of different muon implantation depth profiles on imaging quality was also systematically assessed. The simulation results demonstrate that the proposed imaging system achieves a spatial localization resolution better than 2 mm and effectively reconstructs the internal 3D elemental distributions of samples, confirming its feasibility and potential advantages for MIXE imaging applications. • Developed a multi-module 3D MIXE imaging method based on MLEM reconstruction. • Built the imaging system in Geant4 and validated performance for various elemental distributions. • Assessed the impact of muon implantation depth profiles on MIXE imaging quality. • Achieved 2-mm reconstruction spatial resolution (FWHM) in 3D elemental reconstruction. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Muon-induced X-ray Emission (MIXE) is an emerging nondestructive elemental analysis technique with depth sensitivity. Owing to the high-energy characteristic muonic X-rays, MIXE offers the potential for three-dimensional elemental imaging inside bulk materials. To address the depth-direction blurring caused by the longitudinal spread of muon implantation, a multi-module three-dimensional imaging approach based on MLEM iterative reconstruction is proposed. The multi-module 3D imaging system was constructed using Geant4, and its performance was evaluated for single-element samples, multi-element configurations, and complex elemental distributions involving encapsulated structures. The influence of different muon implantation depth profiles on imaging quality was also systematically assessed. The simulation results demonstrate that the proposed imaging system achieves a spatial localization resolution better than 2 mm and effectively reconstructs the internal 3D elemental distributions of samples, confirming its feasibility and potential advantages for MIXE imaging applications. • Developed a multi-module 3D MIXE imaging method based on MLEM reconstruction. • Built the imaging system in Geant4 and validated performance for various elemental distributions. • Assessed the impact of muon implantation depth profiles on MIXE imaging quality. • Achieved 2-mm reconstruction spatial resolution (FWHM) in 3D elemental reconstruction. [ABSTRACT FROM AUTHOR]
ISSN:13504487
DOI:10.1016/j.radmeas.2026.107689