Color center and radiation center in Lu2SiO5:Ce crystal

  • QIN L
  • LU S
  • DING D
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Radiation damage of Lu2SiO5:Ce (LSO:Ce) crystals was investigated through intense UV light. An absorption band at 435 nm was observed in the transmission spectrum of the damaged LSO:Ce crystal, similar to that of absorption band caused by gamma ray irradiation. GDMS analysis for LSO:Ce crystals revealed the existence of impurities, such as Yb in the crystals. The impurities might be responsible for the optical absorption of the color center and the radiation center. © 2008 The Chinese Society of Rare Earths.

Author-supplied keywords

  • LSO:Ce
  • color center
  • radiation damage
  • rare earths
  • scintillation crystal

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  • Laishun QIN

  • Shen LU

  • Dongzhou DING

  • Huanying LI

  • Guohao REN

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