Radiation resistance and temperature dependence of Ce:GPS scintillation crystal

Chanho Kim, Dongyoung Kim, Yeeeun Lee, Chansun Park, Muhammad Nasir Ullah, Duckhyun Kim, Inyong Kwon, Seop Hur, Jung Yeol Yeom

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We investigated the scintillation properties of Ce:GPS (Ce:Gd2Si2O7), Pr:LuAG (Pr:Lu3Al5O12), and LYSO (Lu2(1 − x)Y2xSiO5) scintillators in high-temperature and high-radiation environments to evaluate their potential application in harsh environments. The temperature dependence of the scintillators was investigated from room temperature to 350 °C. The LYSO scintillator was very vulnerable to high temperatures while the light output of Pr:LuAG scintillator decreased rapidly above 200 °C. The Ce:GPS scintillator demonstrated almost constant light output to 250 °C and decrease about 30% at 300 °C. We also measured the changes in the light yield and transmittance of the scintillators in the range of 0–3.83 MGy. At the highest gamma rays radiation dose, the light output of Ce:GPS, Pr:LuAG, and LYSO compared to the reference scintillator were 15.3% ± 1.8%, 36.7% ± 3.1%, and 73.4% ± 2.6%, respectively. However, Ce:GPS demonstrated a pronounced and fast recovery via thermal annealing, and it recovered within 30 minutes at 400 °C and 1 hour at 300 °C. These properties permit the potential application of Ce:GPS in extreme environments.

Original languageEnglish
Article number109396
JournalRadiation Physics and Chemistry
Publication statusPublished - 2021 Jun

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF-2017M2A8A4017932 , NRF-2020R1A2C2007376 , NRF-2020R1I1A1A01070761 and NRF-2020M2A8A4023713 ).

Publisher Copyright:
© 2021 Elsevier Ltd


  • Ce:GPS
  • Radiation resistance
  • Recovery of damaged crystals
  • Scintillators
  • Temperature dependence

ASJC Scopus subject areas

  • Radiation


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