Radiation induced colour centers and damage in YAlO3:Ce and YAlO3:Ce,Zr scintillators

J. A. Mares, M. Nikl, E. Mihokova, N. Solovieva, K. Blazek, K. Nejezchleb, P. Maly, J. Pejchal, V. Mucka, M. Pospisil, A. Vedda, M. Martini, S. Baccaro

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Radiation induced absorption spectra (irradiation up to 500 Gy by 60Co) and TSL of a set of YAP:Ce crystals co-doped by Zr4+ were investigated. Positive effect of Zr4+ co-doping was found, namely reduction of both the defect creation and presence of TSL active traps. Up to three absorption bands were observed in the radiation induced absorption spectra. They probably have different origin - from colour centers in the green part of the spectra to change of the Ce3+ valency in the near UV.

Original languageEnglish
Pages (from-to)677-681
Number of pages5
JournalRadiation Effects and Defects in Solids
Volume157
Issue number6-12
DOIs
Publication statusPublished - 2002

Keywords

  • Colour centers
  • Defect states
  • Electron and hole traps
  • YAlO:Ce scintillator
  • Zr co-doping
  • γ-ray irradiation

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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