Tb³⁺‐doped 25Na₂O‐23CaO‐6P₂O₅‐44B₂O₃‐2ZrO₂ glass was fabricated by conventional melt‐quenching technique. Glass‐ceramics containing NaCaPO₄ crystals were then obtained by heating the as‐prepared glasses. Their optical and luminescence properties were studied by FT‐IR spectroscopy, photoluminescence (PL), absorption spectra, thermoluminescence (TL), and optically stimulated luminescence in continuous wave modality (CW‐OSL). The glasses were composed of [PO₄], [BO₃], and [BO₄] basic structural units. The PL excitation and emission spectra exhibited Tb³⁺‐related transitions, as well as the strongest excitation and emission wavelengths at 370 and 454 nm, respectively. We further investigated the CW‐OSL properties as a function of dopant concentration and time elapsed after irradiation (signal fading). Results indicated that the CW‐OSL intensity reached a maximum when the Tb₄O₇ concentration was 0.25 mol%. The fading of the OSL signal showed that the OSL signal of Tb³⁺‐doped NaCaPO₄ glass‐ceramics was approximately 65% in 8 days, after which the intensity remained stable. The TL glow curves had a broad peak feature peaking at 180 ± 5ºC. The samples also exhibited good signal reusability and a broad linear dose‐response range (0.03‐1000 Gy). The excellent luminescent and dosimetric properties of these Tb³⁺‐doped NaCaPO₄ glass‐ceramics indicated their potential applications in radiation dosimetry.

中文翻译：

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掺Tb3 +的NaCaPO4玻璃陶瓷的制备，光学性质及其在辐射探测中的应用

铽³⁺掺杂25Na ₂ O形23CaO-6P ₂ ö ₅ -44B ₂ ö ₃ -2ZrO ₂玻璃是由常规的熔融淬火技术制造。然后通过加热制备的玻璃获得含有NaCaPO ₄晶体的玻璃陶瓷。通过FT-IR光谱，光致发光（PL），吸收光谱，热致发光（TL）和连续波模态（CW-OSL）的光激发发光，研究了它们的光学和发光特性。玻璃由[PO ₄ ]，[BO ₃ ]和[BO ₄ ]基本结构单元组成。PL激发和发射光谱显示出Tb³⁺相关的跃迁，以及分别在370和454 nm处最强的激发和发射波长。我们进一步研究了CW-OSL特性与掺杂浓度和辐照后经过的时间（信号衰减）的关系。结果表明，当Tb ₄ O ₇浓度为0.25 mol％时，CW-OSL强度达到最大值。OSL信号的衰落表明Tb ³⁺掺杂的NaCaPO ₄的OSL信号玻璃陶瓷在8天内约为65％，此后强度保持稳定。TL辉光曲线在180±5ºC​​处具有宽峰特征。样品还表现出良好的信号可重用性和宽的线性剂量反应范围（0.03至1000 Gy）。这些掺Tb ^3+的NaCaPO ₄玻璃陶瓷具有出色的发光和剂量特性，表明它们在辐射剂量法中的潜在应用。