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Updated: Nov 4, 2025
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Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
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Optimization and validation of a LaBr3(Ce) detector model for use in Monte Carlo simulations
Md Moudud Hasan1, Tim Vidmar2, Jos Rutten2
1SCK CEN, Belgian Nuclear Research Centre, Boeretang 200, BE-2400, Mol, Belgium; Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel (VUB), Pleinlaan 2, BE-1050, Brussels, Belgium.
Summary
This study optimized a detector model for Monte Carlo efficiency calibration. The model showed good agreement with experimental data, validating its reliability for nuclear physics applications.
Area of Science:
- Nuclear Physics
- Computational Physics
- Radiation Detection
Background:
- Accurate detector modeling is crucial for Monte Carlo efficiency calibration in radiation detection.
- Optimized detector models enhance the reliability of simulations for nuclear physics applications.
Purpose of the Study:
- To develop and validate a detector model for Monte Carlo simulations.
- To assess the accuracy of the model using various radioactive sources and geometries.
- To compare the performance of PENELOPE and MCNP simulation codes for detector efficiency calibration.
Main Methods:
- Utilized PENELOPE and MCNP for Monte Carlo simulations of a LaBr3(Ce) detector.
- Employed multiple radioactive sources (241Am, 133Ba, 137Cs, 60Co, 152Eu) for model verification.
- Compared simulated full energy peak efficiencies (FEPE) with experimental data across different geometries (point, extended, surface).
Main Results:
- Achieved good agreement between simulated and experimental full energy peak efficiencies (FEPE).
- Mean relative differences were 2.84% ± 1.93% for PENELOPE and 2.79% ± 1.99% for MCNP.
- Negligible differences between PENELOPE and MCNP simulations, except at low energies (< 100 keV).
Conclusions:
- The optimized LaBr3(Ce) detector model is reliable for Monte Carlo efficiency calibration.
- Both PENELOPE and MCNP codes provide accurate simulations for detector efficiency calibration.
- The validated model can be used for precise efficiency calibration in radiation detection.
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