Influence of defects on scintillation properties of oxyorthosilicate crystals Ce:Sc:LFS

Belov, M. V.; Zavertyaev, M.; Zagumenniy, A. I.; Козлов, В. А.; Kondratyuk, V. A.; Kutovoĭ, S. A.; Pestovskii, N. V.; Savinov, S. Yu.

doi:10.3103/s1068335617080048

Cited by 5 publications

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“…This result shows that the scintillation mechanism of Li:Sc:Ce:LSO crystal is persistent for the damage caused by the high-power ionizing radiation. Previous studies [4][5][6]9] showed that the Lutetium oxyorthosillicates with additional dopants are strongly radiation hard. Thus, the studied Li:Sc:Ce:LSO composition is suitable for direct measurements of beam parameters in large particle accelerators.…”

Section: Discussionmentioning

confidence: 99%

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Wavelength-Resolved Photoluminescence and Cathodoluminescence Decay Times of LSO:Ce Scintillator CO-Doped with Lithium and Scandium

et al. 2021

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We study the luminescence decay times of Ce 3+ : Lu 2 SiO 5 scintillator, co-doped with Sc 3+ and Li + ions, under the direct photoexcitation of Ce 3+ ions at 337 nm and excitation by a pulsed electron beam with energies of 100 -300 keV. The cathodoluminescence (CL) and photoluminescence (PL) decay times of studied sample are equal within the experimental error. Two emission bands are found: in the range of 370 -480 nm ("high-energy band") and 500 -570 nm ("low-energy band"). The highenergy emission band has the decay times ∼40 ns. The low-energy emission band has the maximum decay time ∼60 ns at 545 nm. The observed results show that the transport stage of Li:Sc:Ce:Lu 2 SiO 5 scintillation mechanism is not affected by a high negative space charge and high density of electronic excitations provided by the high-power electron beam.

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Section: Discussionmentioning

confidence: 99%

“…In particular, a co-doping of Ce:LSO by Ca 2+ and Mg 2+ leads to significant decay-time shortening [6][7][8]. Co-doping of Ce:LSO by Sc 3+ and Y 3+ lead to increase in the radiation hardness and performance improvement [3,5,9].…”

Section: Introductionmentioning

confidence: 99%