Investigation of photostimulated-luminescence properties in Yb:BaCl2 and Yb:BaBr2 for imaging plate applications

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-07-18 DOI:10.1016/j.solidstatesciences.2025.108032

Shota Otake, Takumi Kato, Kensei Ichiba, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida

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Abstract

Optical and photostimulated-luminescence (PSL) properties of Yb:BaCl₂ and Yb:BaBr₂ translucent ceramics were evaluated for imaging plate applications. The samples were prepared by the spark plasma sintering method. A transmittance of the Yb:BaCl₂ and Yb:BaBr₂ samples at an emission wavelength (440 nm) was 30 and 44 %, respectively. In the photoluminescence and PSL spectra, the emission peak was observed at 440 nm due to the 5 d–4f transitions of Yb²⁺, and the decay time constants were approximately 60–70 μs. In PSL dose responses, the signals were detectable in the range of 0.1–1000 mGy for the Yb:BaCl₂ sample and 0.01–1000 mGy for the Yb:BaBr₂ sample. Regarding the spatial resolution of an X-ray image as an imaging plate, the Yb:BaCl₂ and Yb:BaBr₂ samples exhibited superior results to a commercial imaging plate (HR-BD, Fujifilm).

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Yb:BaCl2和Yb:BaBr2成像板光激发发光特性的研究

对Yb:BaCl2和Yb:BaBr2半透明陶瓷的光学和光激发发光（PSL）性能进行了评价。采用火花等离子烧结法制备了样品。Yb:BaCl2和Yb:BaBr2样品在440 nm发射波长处的透射率分别为30%和44%。在光致发光和PSL光谱中，由于Yb2+的5 d-4f跃迁，在440 nm处观察到发射峰，衰变时间常数约为60-70 μs。在PSL剂量响应中，Yb:BaCl2样品的信号在0.1-1000 mGy范围内，Yb:BaBr2样品的信号在0.01-1000 mGy范围内。关于x射线图像作为成像板的空间分辨率，Yb:BaCl2和Yb:BaBr2样品表现出优于商业成像板（HR-BD，富士胶片）的结果。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.