Photoluminescence, scintillation, and dosimetric properties of Ce-codoped MgF2:Tb ceramics

Photoluminescence (PL), scintillation, and dosimetric properties of the Ce-codoped MgF2:Tb ceramics were evaluated. The Ce-codoped MgF2:Tb ceramics showed some PL emission peaks ascribed to the 4f–4f transitions of the Tb3+ ion and the 5d–4f transitions of the Ce3+ ion. It was confirmed that the emi...

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Bibliographic Details
Published in:Journal of luminescence 2021-03, Vol.231, p.117803, Article 117803
Main Authors: Matsuo, Tatsuya, Kato, Takumi, Kimura, Hiromi, Nakamura, Fumiya, Hashimoto, Kosuke, Nakauchi, Daisuke, Kawaguchi, Noriaki, Yanagida, Takayuki
Format: Article
Language:English
Subjects:
Codoping
MgF2
SPS
TSL
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Summary:Photoluminescence (PL), scintillation, and dosimetric properties of the Ce-codoped MgF2:Tb ceramics were evaluated. The Ce-codoped MgF2:Tb ceramics showed some PL emission peaks ascribed to the 4f–4f transitions of the Tb3+ ion and the 5d–4f transitions of the Ce3+ ion. It was confirmed that the emission wavelength of Ce3+ overlapped with the excitation wavelength of Tb3+, and the quantum yield was improved by codoping of Tb and Ce. In addition, the thermally-stimulated luminescence (TSL) glow curves mainly had the glow peak at 245 °C, and TSL spectra showed emission peaks due to the Tb3+ ion. TSL dose response functions were also evaluated, and the dynamic range with linear responses was from 0.01 to 1000 mGy. •We have synthesized Ce-codoped MgF2:Tb ceramics by the spark plasma sintering (SPS) method.•We have characterized the photoluminescence, scintillation and dosimetric properties.•TSL dose response functions were evaluated, and the dynamic range with linear responses was from 0.01 to 1000 mGy.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2020.117803