Articles producció científica> Ciències Mèdiques Bàsiques

Calculation of the ambient dose equivalent H*(10) from gamma-ray spectra obtained with scintillation detectors

  • Datos identificativos

    Identificador: PC:1842
    Handle: https://hdl.handle.net/20.500.11797/PC1842
    Autores:
    Ramon CasanovasElena PrietoMarçal Salvadó
    Resumen:
    The measurement of the ambient dose equivalent H*(10) with automatic real-time radioactivity monitors using gamma-ray spectrometry provides valuable information at short integration times and serves as an alternative to conventional peak analysis of spectra. In this paper, a full methodology for the calculation of this quantity using Monte Carlo (MC) simulations is described and applied to real spectrometric measurements with LaBr3(Ce) scintillation detectors. The methodology involves the calculation of the fluence-to-H*(10) conversion factors and a method for obtaining the fluence from gamma-ray spectra. The combination of these two elements makes it possible to calculate the H*(10). The obtained results are compared with the H*(10) measurements of a Geiger-Müller (GM) detector. Finally, the necessary activity concentration to produce a certain increment on the H*(10) is discussed for some isotopes. This is used to discuss the analysis capabilities of the spectrometric detectors when compared to GM ones.

  • Otros:

    Autor según el artículo: Ramon Casanovas; Elena Prieto; Marçal Salvadó
    Departamento: Ciències Mèdiques Bàsiques
    Autor/es de la URV: CASANOVAS ALEGRE, RAMON; Elena Prieto; SALVADÓ ARTELLS, MARÇAL
    Palabras clave: Monte Carlo simulation scintillation gamma-ray spectrometry LaBr3(Ce)
    Resumen: The measurement of the ambient dose equivalent H*(10) with automatic real-time radioactivity monitors using gamma-ray spectrometry provides valuable information at short integration times and serves as an alternative to conventional peak analysis of spectra. In this paper, a full methodology for the calculation of this quantity using Monte Carlo (MC) simulations is described and applied to real spectrometric measurements with LaBr3(Ce) scintillation detectors. The methodology involves the calculation of the fluence-to-H*(10) conversion factors and a method for obtaining the fluence from gamma-ray spectra. The combination of these two elements makes it possible to calculate the H*(10). The obtained results are compared with the H*(10) measurements of a Geiger-Müller (GM) detector. Finally, the necessary activity concentration to produce a certain increment on the H*(10) is discussed for some isotopes. This is used to discuss the analysis capabilities of the spectrometric detectors when compared to GM ones.
    Grupo de investigación: Física i Cristal.lografia de Materials
    Áreas temáticas: Ciències de la salut Ciencias de la salud Health sciences
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0969-8043
    Identificador del autor: N/D; N/D; N/D
    Fecha de alta del registro: 2016-10-03
    Página final: 159
    Volumen de revista: 118
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0969804316303268?via%3Dihub
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: 10.1016/j.apradiso.2016.09.001
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2016
    Página inicial: 154
    Tipo de publicación: Article Artículo Article

  • Palabras clave:

    Espectrometria de raigs gamma
    Montecarlo, Mètode de
    Monte Carlo simulation
    scintillation gamma-ray spectrometry
    LaBr3(Ce)
    Ciències de la salut
    Ciencias de la salud
    Health sciences
    0969-8043

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