Innovative Eu3+-doped gadolinium borogermanate glass for X-ray imaging scintillator
| Parent link: | Radiation Physics and Chemistry.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 238.— 2026.— Article number 113193, 12 p. |
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| Այլ հեղինակներ: | , , , , , |
| Ամփոփում: | Title screen This research investigated the effects of varying Eu2O3 concentration on the physical, optical, luminescence, and scintillation properties in newly synthesized Eu3+-doped gadolinium borogermanate glasses. It aimed to identify the optimal composition for scintillation and photonic glasses. The density and refractive index of glass increase by adding Eu2O3 content. FTIR spectroscopy confirmed that trigonal BO3 and tetrahedral BO4 borate groups are the primary structural units present in these glasses. Some photons in UV, visible light, and NIR region are absorbed via the 4f-4f transitions of Eu3+ ion in glasses. The X-ray induced luminescence and cathodoluminescence spectra patterns correspond to that of photoluminescence. Under all excitations by UV, X-ray, and electron, Eu3+ ions in glasses demonstrated the intense reddish-orange luminescence with the strongest peak around 612 – 615 nm. The highest emission intensity belongs to 5 mol % Eu2O3 - doped glass with photoluminescence decay time ∼1.58 ms. The O2− → Eu3+ charge transfer, Gd3+→ Eu3+ energy transfer, and Eu3+ direct excitation are the crucial processes in such luminescence. Glass has a potential X-ray scintillation with integral efficiency as 32 % of BGO crystal. To investigate the glass's capability, an X-ray imaging experiment was conducted using it as a scintillator. Glass can capture several objects with image characteristics comparable to YAG:Ce crystal, but with longer exposure time and less contrast. This developed glass is a new promising material for static X-ray imaging, radiation detecting with integration mode, and reddish-orange photonics Текстовый файл AM_Agreement |
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2026
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| Առցանց հասանելիություն: | https://doi.org/10.1016/j.radphyschem.2025.113193 |
| Ձևաչափ: | Էլեկտրոնային Գրքի գլուխ |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682675 |