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Effect of the Pr.sup.3+./sup.→Gd.sup.3+./sup. energy transfer in multicomponent garnet single crystal scintillators
- 1.0396626 - FZÚ 2014 RIV GB eng J - Journal Article
Babin, Vladimir - Nikl, Martin - Kamada, K. - Beitlerová, Alena - Yoshikawa, A.
Effect of the Pr3+→Gd3+ energy transfer in multicomponent garnet single crystal scintillators.
Journal of Physics D-Applied Physics. Roč. 46, č. 36 (2013), s. 1-6. ISSN 0022-3727. E-ISSN 1361-6463
R&D Projects: GA MŠMT LH12150
Institutional support: RVO:68378271
Keywords : scintillator * Pr3+ * garnet * energy transfer * decay kinetics
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.521, year: 2013
http://stacks.iop.org/JPhysD/46/365303
Luminescence processes in the undoped and Pr3+-doped (Gd,RE)3(Ga,Al)5O12, RE=Lu,Y, multicomponent garnets are studied by the time-resolved photoluminescence spectroscopy. Energy transfer processes between Pr3+ and Gd3+ causing significant deterioration of the scintillation performance are considered in detail. As it is shown in current work, an overlap of the 5d1-3H4 emission transition of Pr3+ and 8S-6Px absorption transition of Gd3+ results in unwanted depletion of Pr3+ 5d1 excited state and is further intensified by the concentration quenching in the Gd3+-sublattice. This process explains a drastic decrease of light yield in Pr3+-doped Gd3+-containing multicomponent garnets observed in a previous work.
Permanent Link: http://hdl.handle.net/11104/0224359
Number of the records: 1