Comparing the effect of electron beam, beta and ultraviolet C exposure on the luminescence emission of commercial dosimeters

Boronat, Cecilia, Correcher, Virgilio, Bravo Yagüe, Juan Carlos, Sarasola Martín, Iciar, García Guinea, Javier y Benavente Cuevas, José Francisco . (2023) Comparing the effect of electron beam, beta and ultraviolet C exposure on the luminescence emission of commercial dosimeters. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy: Volume 295, 5 July 2023, 122571

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Título Comparing the effect of electron beam, beta and ultraviolet C exposure on the luminescence emission of commercial dosimeters
Autor(es) Boronat, Cecilia
Correcher, Virgilio
Bravo Yagüe, Juan Carlos
Sarasola Martín, Iciar
García Guinea, Javier
Benavente Cuevas, José Francisco
Materia(s) Ciencias
Abstract This paper reports on the luminescence characterization of TLD-100 (LiF: Ti, Mg), TLD-200 (CaF2: Dy), TLD-400 (CaF2: Mn) and GR-200 (LiF: Mg, Cu, P) dosimeters exposed to electro beam, beta and ultraviolet C radiation -UVC-. All of them show high sensitivity to radiation regardless of whether it is ionizing or partially ionizing radiation based on their luminescence properties (cathodoluminescence -CL- or thermoluminescence -TL-). CL emission differs significantly among them in shape and intensity due to their chemical compositions. LiF samples display three maxima at: (i) 300-450 nm linked to intrinsic and structural defects, (ii) a green waveband probably due to F3+ centres or the presence of hydroxyl groups and (iii) the red-infrared emission band associated with F2 centres. However, CL spectra from the CaF2 dosimeters display meaningful differences due to the dopant. TLD-200 is characterized by an emission with four sharp individual peaks in the green-IR spectral region (due to the Dy3+), whilst TLD-400 exhibits a broad maximum peaked at ̴ 500 nm (linked to the Mn2+). On the other hand, the variation in the TL glow curves allows to discriminate the TLDs exposed to beta and UVC radiation since they give rise to different chemicalphysical processes and that have been studied from the estimation of the kinetic parameters by means of the Computerised Glow Curve Deconvolution (CGCD) method.
Palabras clave luminescence
ultraviolet
Dosimeters
kinetics analysis
LiF
CaF2
Editor(es) Elsevier
Fecha 2023-07-05
Formato application/pdf
Identificador bibliuned:DptoCA-FCIE-Articulos-Jcbravo-0002
http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Jcbravo-0002
DOI - identifier https://doi.org/10.1016/j.saa.2023.122571
ISSN - identifier 1386-1425
Nombre de la revista Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Número de Volumen 295
Publicado en la Revista Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy: Volume 295, 5 July 2023, 122571
Idioma eng
Versión de la publicación acceptedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales This is the Accepted Manuscript of an article published by ELSEVIER in "Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy", available online: https://doi.org/10.1016/j.saa.2023.122571
Notas adicionales Este es el manuscrito aceptado de un artículo publicado por ELSEVIER en "Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy", disponible en línea: https://doi.org/10.1016/j.saa.2023.122571

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Creado: Thu, 23 Nov 2023, 21:09:39 CET