Radioluminescence and optical studies of gadolinium calcium phosphate oxyfluoride glasses doped with Sm3+
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Publication Details
Author list: Meejitpaisan P., Insiripong S., Kedkaew C., Kim H.J., Kaewkhao J.
Publisher: Elsevier
Publication year: 2017
Journal: Radiation Physics and Chemistry (0969-806X)
Volume number: 137
Start page: 62
End page: 67
Number of pages: 6
ISSN: 0969-806X
Languages: English-Great Britain (EN-GB)
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Abstract
Sm3+-doped gadolinium calcium phosphate oxyfluoride glasses have been synthesized and investigated their optical, photo and radioluminescence properties. The glasses were prepared by melt quenching technique at 1400 °C. The characteristic absorption bands of Sm3+ ions originating from the 6H5/2 ground state and occurring absorbed photon in visible light (VIS) and near-infrared (NIR) region with clearly observed from absorption spectra. From the photoluminescence (PL), the glasses showed the emission at 561 (4G5/2→6H5/2), 598 (4G5/2→6H7/2), 644 (4G5/2→6H9/2) and 705 nm (4G5/2→6H11/2). The radioluminescence (RL), emission spectra were corresponding to those from PL measurements. From RL measurement, the integral scintillation efficiency of developed glass was determined at 43% when compared with BGO crystal. © 2016 Elsevier Ltd
Keywords
Optical, Oxyfluoride, Radioluminescence
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