Articles producció científica> Ciències Mèdiques Bàsiques

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

  • Dades identificatives

    Identificador: PC:1842
    Handle: https://hdl.handle.net/20.500.11797/PC1842
    Autors:
    Ramon CasanovasElena PrietoMarçal Salvadó
    Resum:
    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.

  • Altres:

    Autor segons l'article: Ramon Casanovas; Elena Prieto; Marçal Salvadó
    Departament: Ciències Mèdiques Bàsiques
    Autor/s de la URV: CASANOVAS ALEGRE, RAMON; Elena Prieto; SALVADÓ ARTELLS, MARÇAL
    Paraules clau: Monte Carlo simulation scintillation gamma-ray spectrometry LaBr3(Ce)
    Resum: 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.
    Grup de recerca: Física i Cristal.lografia de Materials
    Àrees temàtiques: Ciències de la salut Ciencias de la salud Health sciences
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0969-8043
    Identificador de l'autor: N/D; N/D; N/D
    Data d'alta del registre: 2016-10-03
    Pàgina final: 159
    Volum de revista: 118
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0969804316303268?via%3Dihub
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1016/j.apradiso.2016.09.001
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2016
    Pàgina inicial: 154
    Tipus de publicació: Article Artículo Article

  • Paraules clau:

    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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