近红外区掺钕CaHfO3单晶闪烁体的研制

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Pub Date : 2025-03-01 Epub Date: 2025-02-02 DOI:10.1016/j.optmat.2025.116767

Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida

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引用次数: 0

摘要

采用浮区法制备了Nd:CaHfO3单晶，并对其光学性能和闪烁性能进行了评价。在800 nm激发下，1.0% Nd:CaHfO3的量子产率最高，达到91.1%。由于Nd3+在可见光和近红外区的4f-4f跃迁，x射线诱导闪烁光谱显示出多个发射峰。余辉值在1400 ~ 2300 ppm范围内，优于以往稀土掺杂CaHfO3单晶的余辉值。所有Nd:CaHfO3样品在0.005 ~ 51 Gy/h范围内呈比例关系，其中2.0 % Nd:CaHfO3样品的比例关系最高。

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Development of Nd-doped CaHfO3 single crystal scintillator emitting near-infrared region

Nd:CaHfO₃ single crystals were prepared using the floating zone method, and their optical and scintillation properties were evaluated. The 1.0 % Nd:CaHfO₃ sample showed the highest quantum yield of 91.1 % under excitation at 800 nm among the samples. The X-ray-induced scintillation spectra showed multiple emission peaks due to the 4f–4f transitions of Nd³⁺ in the visible and near-infrared regions. The afterglow values were within the range of 1400–2300 ppm and better than those of the previous study about rare-earth-doped CaHfO₃ single crystals. All the Nd:CaHfO₃ samples showed a proportional relationship in the 0.005–51 Gy/h, and the 2.0 % Nd:CaHfO₃ sample showed the highest proportionality among the samples.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.