Eu2O3 doped silicoborate glasses for scintillation material application: Luminescence ability and X-ray imaging

被引：9

作者：

Intachai N. ^{[1
]}

Kothan S. ^{[1
]}

Wantana N. ^{[2
,3
]}

Kaewjaeng S. ^{[1
]}

Pakawanit P. ^{[4
]}

Vittayakorn N. ^{[5
]}

Kanjanaboos P. ^{[6
]}

Phuphathanaphong N. ^{[6
]}

Kim H.J. ^{[7
]}

Kaewkhao J. ^{[2
,3
]}

机构：

[1] Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai

[2] Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom

[3] Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom

[4] Synchrotron Research and Applications Division, Synchrotron Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima

[5] Advanced Materials Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok

[6] School of Materials Science and Innovation, Faculty of Science, Mahidol University, Nakhon Pathom

[7] Department of Physics, Kyungpook National University, Daegu

来源：

Optik | 2023年 / 294卷

关键词：

Europium oxide; Luminescence; Silicoborate glass; X-ray imaging;

D O I：

10.1016/j.ijleo.2023.171439

中图分类号：

学科分类号：

摘要：

The glass samples were prepared by melt quenching method and changing Eu2O3 concentrations following component of xEu2O3 - 40Na2O - 7.5Gd2O3 - 5SiO2 - (47.5-x)B2O3 (x = 0, 1, 2, 3 mol %). Density and molar volume tend to increase with increasing Eu2O3 concentrations, corresponding to the larger non-bridging oxygen. Fourier transform infrared spectra (FTIR) results point out that the majority BO3 borate group. The absorption spectra were represented in the length of UV-Vis and NIR region. The phonon energy of 3Eu:7.5Gd was 1280.54 cm−1, related to the borate glass host. The photoluminescence and X-ray-induced luminescence spectra of 3Eu:7.5Gd glass showed similar highest intensity at 613 nm (5D0→7F2). The photoluminescence quantum yield (PLQY) of 3Eu:7.5Gd glass shows the highest value at 85.70 %. The scintillation efficiency of 3Eu:7.5Gd glass was 17.51 % of bismuth germanate (BGO) crystal. The decay time owing to Eu3+ emission is 2.054 ms for 2Eu:7.5Gd glass. The highest energy transfer efficiency was 2 mol % of Eu2O3 concentrations (ηET = 70 %). The CIE chromaticity coordinates of the glasses are placed in the reddish-orange area (0.65, 0.35). The spatial resolution of X-ray imaging study was 10 lp/mm. These results suggest that 3 mol % of Eu2O3 doped silicoborate glass is capable of being a scintillator applied in the X-ray imaging system. © 2023 Elsevier GmbH

引用

共 34 条

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