High light yield Ce3+-doped dense scintillating glasses

Wang, Qin; Yang, Bin; Zhang, Yuepin; Xia, Haiping; Zhao, T.; Jiang, Haochuan

doi:10.1016/j.jallcom.2013.07.181

Cited by 71 publications

(40 citation statements)

References 16 publications

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“…One of the transparent blue-emitting glass samples is shown in the inset of Figure 1. 8 Van Loef et al reported that the peak emission from GdBr 3 :Ce single crystals was located at 419 nm. An emission band peaked at 431 nm with a width of 90 nm at half maximum was observed under excitation at 356 nm.…”

Section: Photoluminescencementioning

confidence: 99%

“…8,12 This is mostly due to the lowered conduction band level of the host glass relative to the excited 5D states of Ce 3+ . 8,12 This is mostly due to the lowered conduction band level of the host glass relative to the excited 5D states of Ce 3+ .…”

Section: Introductionmentioning

confidence: 99%

“…13,14 If the absorption is at lower energy, electron transfer or photoionization will quench the luminescence as in La 2 O 3 :Ce which shows no luminescence. 8 Incorporation of Gd content into the glass is through addition of GdBr 3 instead of Gd 2 O 3 . We have found that increase in F content relative to O is able to shift the band gap to higher energies.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of a gadolinium‐rich oxyhalide glass scintillator for gamma ray spectroscopy

et al. 2017

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A transparent gadolinium‐rich oxyhalide glass scintillator was developed for gamma ray spectroscopy with an energy resolution of 14.0% at 662 keV. To the best of our knowledge, this is the highest energy resolution reported for a glass‐based scintillator. The high gadolinium content facilitated a scintillator density of 4.4 g/cm3. The high fluorine and bromine incorporation is advantageous for better uniformity and a good light output of ~3200 Ph/MeV. The peak emission at 431 nm with a FWHM of 90 nm, resulting from the fast Ce3+ transitions, yielded pulse‐height spectra with distinctive peaks from 122 keV to 1.33 keV for gamma radiation from different nuclides.

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Section: Photoluminescencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of a gadolinium‐rich oxyhalide glass scintillator for gamma ray spectroscopy

et al. 2017

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“…The featured apparent absorption peaks at 350, 368, 378 and 483 nm are associated with optical transitions from 7 F 6 -5 D 2 , 5 L 10 , 5 D 3 ( 5 G 6 ) and 5 D 4 of Tb 3 þ , respectively [9,11]. While the absorption peaks are dominantly by the strong and broad absorption bands centered at about 240 nm in 200-300 nm region, which is assigned to the allowed 4f 8 -4f 7 5d transition of Tb 3 þ ions [15]. It is clear that all absorption peaks get stronger with the elevated Tb 2 O 3 content.…”

Section: Resultsmentioning

confidence: 99%

Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

Sun

Yang

Gao

et al. 2015

Journal of Luminescence

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“…Glasses doped with rare-earth ions have important advantages over crystals because of their low production cost, high transparency, compositional variety, drawn to flexible geometry and easy mass production, such as optic fibers. Detecting high-energy particles and gamma rays usually requires scintillators with high light yield and short decay time [2].…”

Section: Introductionmentioning

confidence: 99%

Luminescent Properties and Energy Transfer Mechanism of Gd3+ and Eu2+ Co-doped Phosphate Glasses

Wang

Ouyang

Zhang

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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The phosphate glasses doped with Eu 2? , Gd 3? , respectively, and co-doped with Gd 3? and Eu 2? were prepared by high-temperature melting method. The transmission spectra, the excitation spectra, the emission spectra and the fluorescent decay time were investigated. The energy transfer process between Gd 3? and Eu 2? was studied. From the excitation spectra and the emission spectra of the phosphate glasses doped with Eu 2? , we observed that the emission intensity of Eu 2? shows higher for 0.02 mol% Eu 2? -doped phosphate glass. According to the excitation spectra and the emission spectra and the fluorescence decay curves, when the concentration of Eu 2? was 0.02 mol%, the optimal concentration of Gd 3? was 0.3 mol%. Based on Dexter theory, it is shown that the energy transfer between Gd 3? and Eu 2? was nonradiation energy transfer by analyzing the energy-level diagram. The fluorescence decay curves of Gd 3? were expressed by the Inokuti-Hirayama's model and were used to analyze energy transfer mechanism between Gd 3? and Eu 2? . And the energy transfer efficiency was also calculated.

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High light yield Ce3+-doped dense scintillating glasses

Cited by 71 publications

References 16 publications

Optimization of a gadolinium‐rich oxyhalide glass scintillator for gamma ray spectroscopy

Optimization of a gadolinium‐rich oxyhalide glass scintillator for gamma ray spectroscopy

Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

Luminescent Properties and Energy Transfer Mechanism of Gd3+ and Eu2+ Co-doped Phosphate Glasses

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