Radioluminescence and optical studies of gadolinium calcium phosphate oxyfluoride glasses doped with Sm3+

P. Meejitpaisan, S. Insiripong, C. Kedkaew, H. J. Kim, J. Kaewkhao

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

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 (4G5/26H5/2), 598 (4G5/26H7/2), 644 (4G5/26H9/2) and 705 nm (4G5/26H11/2). 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.

Original languageEnglish
Pages (from-to)62-67
Number of pages6
JournalRadiation Physics and Chemistry
Volume137
DOIs
StatePublished - Aug 2017

Keywords

  • Optical
  • Oxyfluoride
  • Phosphate
  • Radioluminescence

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