Development of 3D-scan-based efficiency calibration method of complex-shaped materials in gamma spectrometry

To address gamma spectrometry on complex-shaped materials when the conventional method based on certified reference materials is impractical, we propose a new 3D-scan-based source modeling method for reflecting geometry of complex-shaped materials. Various complex-shaped materials were selected, sca...

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Bibliographic Details
Published in:Journal of the Korean Physical Society Vol. 87; no. 2; pp. 225 - 235
Main Authors: Lee, Jihye, Cho, Seungryong, Kim, Jiseok, Kwon, Jinhyung, Shin, Donghyuk, Kim, Chanjoong, Kim, Hyeonggon, Kim, Young-su
Format: Journal Article
Language:English
Published: Seoul The Korean Physical Society 01.07.2025
Springer Nature B.V
한국물리학회
Subjects:
Calibration
Data processing
Efficiency
Gamma rays
Geometry
Lasers
Mathematical and Computational Physics
Methods
Monte Carlo simulation
Particle and Nuclear Physics
Physics
Physics and Astronomy
Radioactivity
Research - Cross-Disciplinary Physics and Related Areas of Science and Technology
Scanners
Scientific imaging
Software
Spectrometry
Theoretical
물리학
Complex-shaped materials
3D-scan
Monte Carlo simulation
Efficiency calibration
Gamma spectrometry
ISSN:0374-4884, 1976-8524
Online Access:Get full text
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Summary:To address gamma spectrometry on complex-shaped materials when the conventional method based on certified reference materials is impractical, we propose a new 3D-scan-based source modeling method for reflecting geometry of complex-shaped materials. Various complex-shaped materials were selected, scanned with tailored methods depending on the scanned objects, and the scanned 3D data were integrated into the source term models for Monte Carlo simulation. The developed method has been confirmed that all complex-shaped materials thus created can be cast into the Monte Carlo simulation toolkit Geant4 as source terms. It produced mesh deviations of all samples within 1 mm, validating its utility for practical applications. The developed method was experimentally validated using CRM, proving the accuracy of the method. The proposed method enables a comprehensive efficiency calibration for radioactivity analysis of complex-shaped materials without the need for destructive preprocessing.
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ISSN:0374-4884
1976-8524
DOI:10.1007/s40042-025-01395-6