Influence of Si-codoping on YAG:Ce scintillation characteristics

S. Baccaro, A. Cecilia, E. Mihokova, M. Nikl, K. Nejezchleb, K. Blazek

Research output: Contribution to conferencePaper

Abstract

A set of undoped, Ce3+-doped and Si4+ -codoped Y 3A15O12 (YAG) single crystals were grown by the Czochralski method and submitted to γ irradiation in the dose range 1-236 Gy at RT. Their irradiation induced absorption coefficient was calculated and analyzed. Crystals also underwent light yield (LY) and scintillation decay measurements using the 241 Am and 22 Na radioactive sources, respectively, in 1 μs time gate. The induced absorption at 550 nm (at the Ce3+ luminescence peak) decreases with Ce concentration and further decrease is obtained in the Si4+-codoped samples. LY values are independent on the Ce3+ concentration within 0.12% - 0.3% and on the moderate Si4+ codoping as well. © 2004 IEEE.

Conference

Conference2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors
CountryItaly
Period1/1/04 → …

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All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Baccaro, S., Cecilia, A., Mihokova, E., Nikl, M., Nejezchleb, K., & Blazek, K. (2004). Influence of Si-codoping on YAG:Ce scintillation characteristics. Paper presented at 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors, Italy.