Optimization and validation of a LaBr3(Ce) detector model for use in Monte Carlo simulations

Moudud Hasan; Tim Vidmar; Jos Rutten; Leen Verheyen; Johan Camps; Marijke Huysmans

doi:10.1016/j.apradiso.2021.109790

Optimization and validation of a LaBr3(Ce) detector model for use in Monte Carlo simulations

Moudud Hasan, Tim Vidmar, Jos Rutten, Leen Verheyen, Johan Camps, Marijke Huysmans

Crisis Management and Decision Support

Research output › peer-review

Abstract

A reliable detector model is needed for Monte Carlo efficiency calibration. A LaBr3(Ce) detector model was optimized and verified using different radioactive sources (241Am, 133Ba, 137Cs, 60Co and 152Eu) and geometries (point, extended and surface). PENELOPE and MCNP were used for Monte Carlo simulations. A good agreement was observed between simulated and experimental full energy peak efficiencies (FEPE) as their mean relative difference was 2.84% ± 1.93% and 2.79% ± 1.99% for PENELOPE and MCNP simulation, respectively. The differences between simulated FEPEs of two Monte Carlo codes were negligible except for low energies (< 100 keV).

Original language	English
Article number	109790
Pages (from-to)	1-14
Number of pages	14
Journal	Applied Radiation and Isotopes
Volume	174
DOIs	https://doi.org/10.1016/j.apradiso.2021.109790
State	Published - 25 May 2021

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Cite this

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title = "Optimization and validation of a LaBr3(Ce) detector model for use in Monte Carlo simulations",

abstract = "A reliable detector model is needed for Monte Carlo efficiency calibration. A LaBr3(Ce) detector model was optimized and verified using different radioactive sources (241Am, 133Ba, 137Cs, 60Co and 152Eu) and geometries (point, extended and surface). PENELOPE and MCNP were used for Monte Carlo simulations. A good agreement was observed between simulated and experimental full energy peak efficiencies (FEPE) as their mean relative difference was 2.84% ± 1.93% and 2.79% ± 1.99% for PENELOPE and MCNP simulation, respectively. The differences between simulated FEPEs of two Monte Carlo codes were negligible except for low energies (< 100 keV).",

keywords = "Monte Carlo, Lanthanum bromide, Gamma spectrometry, MCNP, PENELOPE",

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T1 - Optimization and validation of a LaBr3(Ce) detector model for use in Monte Carlo simulations

AU - Hasan, Moudud

AU - Vidmar, Tim

AU - Rutten, Jos

AU - Verheyen, Leen

AU - Camps, Johan

AU - Huysmans, Marijke

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AB - A reliable detector model is needed for Monte Carlo efficiency calibration. A LaBr3(Ce) detector model was optimized and verified using different radioactive sources (241Am, 133Ba, 137Cs, 60Co and 152Eu) and geometries (point, extended and surface). PENELOPE and MCNP were used for Monte Carlo simulations. A good agreement was observed between simulated and experimental full energy peak efficiencies (FEPE) as their mean relative difference was 2.84% ± 1.93% and 2.79% ± 1.99% for PENELOPE and MCNP simulation, respectively. The differences between simulated FEPEs of two Monte Carlo codes were negligible except for low energies (< 100 keV).

KW - Monte Carlo

KW - Lanthanum bromide

KW - Gamma spectrometry

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