Dosimetric properties of UV irradiated calcium co-doped borate glass-ceramic
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Data
2008-02-01
Autores
Rojas, S. S.
Yukimitu, K. [UNESP]
Hernandes, A. C.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
The thermoluminescence (TL) response of Dy and Li doped 20CaB(4)O(7)-80CaB(2)O(4) (Wt%) glass-ceramic irradiated with ultraviolet (UV) radiation was studied. In order to act as TL activator ions, the Dy and Li ions were included in the matrix during the melting process to increase its TL efficiency. A single crystalline CaB2O4 phase was present in the glass-ceramic as determined by X-ray diffraction (XRD). The glass-ceramic 20CaB(4)O(7)-80CaB(2)O(4):Dy,Li wt% (named 20CBO7:Dy,Li) is a newly prepared TL material. Its thermoluminescent dosimetric characteristics have shown a linear response under UV radiation exposure and a good TL signal reproducibility, thus proving to be a promising material for using as an ultraviolet radiation dosimeter. (C) 2007 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Borates, glass-ceramic, UV dosimetry, thermoluminescence
Como citar
Nuclear Instruments & Methods In Physics Research Section B-beam Interactions With Materials and Atoms. Amsterdam: Elsevier B.V., v. 266, n. 4, p. 653-657, 2008.