A set of undoped, Ce3+-doped and Si4+-codoped Y3Al5O12[yttrium aluminum garnet (YAG)] crystals were grown by the Czochralski method and submitted to γ irradiation in the dose range 1-236 Gy at RT, to investigate the possibility to reinforce crystal radiation hardness by Si4+doping. The absorption coefficients induced by the irradiation were calculated and analyzed. Crystals also underwent light yield (LY) and scintillation decay measurements using the241Am and22Na radioactive sources 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. © 2005 IEEE.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering
Baccaro, S., Cecilia, A., Mihokova, E., Nikl, M., Nejezchleb, K., & Blazek, K. (2005). Influence of Si-codoping on YAG:Ce scintillation characteristics. IEEE Transactions on Nuclear Science, 52(4), 1105 - 1108. https://doi.org/10.1109/TNS.2005.852664