Abstract
New scintillation crystals Ce:Sc:Li:LFS and Ce:Sc:Ca:LFS based on lutetium oxyorthosilicate are grown. Optical characteristics and the decay time of new scintillators are studied. For Ce:Sc:Ca:LFS crystals, it is shown that oxygen vacancies dominate in the energy transfer in the matrix transmission range of 3.46–6.26 eV. It is found that the high density of oxygen vacancies at the lower part of the Ce:Sc:Ca:LFS crystal leads to a decrease in the scintillation time to 22–26 ns.
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Original Russian Text © M.V. Belov, M.V. Zavertyaev, A.I. Zagumenniy, V.A. Kozlov, V.A. Kondratyuk, S.A. Kutovoi, N.V. Pestovskii, S.Yu. Savinov, 2017, published in Kratkie Soobshcheniya po Fizike, 2017, Vol. 44, No. 8, pp. 25–33.
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Belov, M.V., Zavertyaev, M.V., Zagumenniy, A.I. et al. Influence of defects on scintillation properties of oxyorthosilicate crystals Ce:Sc:LFS. Bull. Lebedev Phys. Inst. 44, 232–237 (2017). https://doi.org/10.3103/S1068335617080048
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DOI: https://doi.org/10.3103/S1068335617080048