Tb3+ doped Na2O-CaO-Al2O3-B2O3 scintillating glass: calibration material for luminescence spectrometers and X-ray imaging application

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-09-09 DOI:10.1016/j.radphyschem.2025.113302

N. Jarucha , Y. Ruangtaweep , P. Meejitpaisan , H.J. Kim , P. Boontueng , C. Kobdaj , N. Ritjoho , T. Sanghangthum , D. Valiev , S. Stepanov , P. Pakawanit , C. Phoovasawat , N. Intachai , S. Kothan , P.H. Minh , P.V. Duong , A. Nishikawa , T. Kunikata , T. Kato , T. Yanagida , J. Kaewkhao

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引用次数: 0

Abstract

This study reports the synthesis and detailed characterization of Tb³⁺ doped sodium aluminum calcium borate (TbACNB) glasses, developed via melt-quenching, with the aim of establishing reliable luminescent calibration standards and X-ray imaging scintillators. A systematic investigation of photoluminescence, radioluminescence, proton-induced luminescence, and cathodoluminescence confirms a dominant and stable green emission centered at 546 nm, corresponding to the ⁵D₄→⁷F₅ transition of Tb³⁺ ions. Among all tested concentrations, the 6 mol% Tb₂O₃ doped glass exhibits the highest photoluminescence quantum yield of 25.67 %, optimal decay lifetime, and consistent emission peak positions across all excitation methods, indicating structural and spectral stability. Proton and X-ray irradiation studies demonstrate linear dose response behavior and high spatial resolution up to 10 lp/mm, validating the glass applicability for high-resolution X-ray imaging. The glass retains uniform luminescence and color stability, with CIE coordinates at (0.31, 0.60), confirming its potential as a fluorescence calibration reference. The novelty of this work lies in demonstrating multi-stimulus luminescence consistency, dose dependent response, and X-ray imaging, positioning 6TbACNB as a dual purpose material for optical calibration and X-ray imaging systems.

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Tb3+掺杂na20 - cao - al2o3 - b2o3闪烁玻璃：用于发光光谱仪和x射线成像的校准材料

本研究报道了Tb3+掺杂硼酸钠铝钙（TbACNB）玻璃的合成和详细表征，该玻璃采用熔融淬火法制备，目的是建立可靠的发光校准标准和x射线成像闪烁体。通过对光致发光、辐射致发光、质子致发光和阴极致发光的系统研究，证实了以546 nm为中心的稳定绿色发光，与Tb3+离子的5D4→7F5跃迁相对应。在所有测试浓度中，6 mol% Tb2O3掺杂玻璃的光致发光量子产率最高，达到25.67%，衰变寿命最佳，并且在所有激发方法中都具有一致的发射峰位置，表明结构和光谱稳定性。质子和x射线辐照研究证明了线性剂量响应行为和高达10 lp/mm的高空间分辨率，验证了玻璃在高分辨率x射线成像中的适用性。玻璃保持均匀的发光和颜色稳定性，CIE坐标为（0.31,0.60），确认其作为荧光校准参考的潜力。这项工作的新颖之处在于证明了多刺激发光一致性，剂量依赖性响应和x射线成像，将6TbACNB定位为光学校准和x射线成像系统的双重用途材料。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.