Radio-photoluminescence phenomenon in Ag-doped Cs2O-CaO-Al2O3-P2O5 glasses

被引：1
|
作者：
Nishikawa, Akihiro [1 ]
Shiratori, Daiki [1 ]
Kato, Takumi [1 ]
Nakauchi, Daisuke [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2023年 / 62卷 / 04期
关键词：
radiation measurement; ionizing radiation; dosimeter; radio-photoluminescence; RADIOPHOTOLUMINESCENCE PROPERTIES; STIMULATED LUMINESCENCE; STORAGE PHOSPHOR; BAFBR-EU2+; SILVER; CERAMICS; CENTERS;
D O I：
10.35848/1347-4065/acc372
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, Ag2O-Cs2O-CaO-Al2O3-P2O5 glasses with different Ag concentrations (0, 0.1, 0.3, 1.0, and 3.0 mol.%) were made by the melt-quenching method. The photoluminescence (PL) properties, the radio-photoluminescence (RPL) phenomenon, and the spatial resolution of X-ray imaging based on RPL were studied to aim for the X-ray imaging application. The RPL phenomenon was observed as an appearance of a new PL emission at around 620 nm after X-ray irradiation. According to the shape of the PL spectrum and lifetime (13.1-16.7 ns), the luminescence was confirmed to be due to Ag2+. In addition, the 3.0% Ag-doped sample had the highest emission intensity of Ag2+. From the X-ray imaging resolution test, the 3.0% Ag-doped sample showed a spatial resolution of at least 10.0 LP mm(-1). (c) 2023 The Japan Society of Applied Physics
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页数：7
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