Cathodoluminescence kinetics of Li6GdB3O9 crystals

Огородников, И. Н.; Киселева, М. С.; Vostrov, D.O.; Yakovlev, V. Yu.

doi:10.1016/j.jlumin.2014.10.011

Cited by 7 publications

(2 citation statements)

References 44 publications

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“…The main losses of scintillation characteristics take place at the transport stage [19]. Particularly, the excitation by a high-power electron beam leads to formation of specific defects and may cause the significant change in luminescence characteristics; the phenomena are observed, particularly, in Ce:Li 6 GdB 3 O 9 [20,21].…”

Section: Discussionmentioning

confidence: 99%

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%

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

et al. 2021

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“…At the same time, the developed surface of the fibers and strong temperature gradients that occur when stretching and cooling, are sources of increased defectiveness of the crystal-fiber samples [46,47]. Previously, we have conducted a similar study of LGBO crystals using the X-rays induced luminescence [47,48], thermoluminescence [49], and cathodoluminescence [50] techniques. These publications revealed a number of significant differences in the luminescent properties of single crystals and crystalfibers.…”

Section: Introductionmentioning

confidence: 99%