Use este identificador para citar ou linkar para este item: http://carpedien.ien.gov.br:8080/handle/ien/845
Tipo: article
Título: Validation of a NaI(Tl) detector’s model developed with MCNP-X code
Autor(es): SALGADO, César Marques
BRANDÃO, Luis Eduardo Barreira
SCHIRRU, Roberto
PEREIRA, Cláudio Márcio do Nascimento Abreu
CONTI, Cláudio de Carvalho
Resumo: The Monte Carlo method was used to calculate the photon detection efficiency and energy resolution curves for a 1.500 100 NaI(Tl) scintillator detector (crystal þ housing þ photomultiplier tube material equivalent) exposed to gamma rays in the energy range from 20 keV to 662 keV. This work aims to design a precise computational model, based in Monte Carlo simulation, which can be used in practical application. The energy resolution curve was used to improve the response of the mathematical simulation of the detector. The detector was modeled with the MCNP-X code and the results were compared to experimental photopeak efficiency measurements of radiation sources. The results showed good agreement with the experimental data.
Abstract: The Monte Carlo method was used to calculate the photon detection efficiency and energy resolution curves for a 1.500 100 NaI(Tl) scintillator detector (crystal þ housing þ photomultiplier tube material equivalent) exposed to gamma rays in the energy range from 20 keV to 662 keV. This work aims to design a precise computational model, based in Monte Carlo simulation, which can be used in practical application. The energy resolution curve was used to improve the response of the mathematical simulation of the detector. The detector was modeled with the MCNP-X code and the results were compared to experimental photopeak efficiency measurements of radiation sources. The results showed good agreement with the experimental data.
Palavras-chave: MCNP-X simulation
NaI (Tl) detector
Gamma spectrometry
CNPq: Instrumentação para Medida e Controle de Radiação
Idioma: por
País: Brasil
Editor: Insitituto de Engenharia Nuclear
Sigla da Instituição: IEN
Tipo de Acesso: openAccess
URI: http://hdl.handle.net/ien/845
Data do documento: 2012
Aparece nas coleções:Aplicação de técnicas nucleares na indústria, saúde e meio ambiente - Artigos de Periódicos

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