Development of Tm-doped CaHfO3 single-crystal-scintillators for application to integrated-type detectors

被引:4
作者
Endo, Yusuke [1 ]
Ichiba, Kensei [1 ]
Nakauchi, Daisuke [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构
[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, Ikoma, Nara 6300192, Japan
关键词
scintillator; radiation detector; scintillation detector; ionizing radiation; EFFECTIVE IONIC-RADII; PHOTOLUMINESCENCE; EMISSION; PHOSPHORS; SR;
D O I
10.35848/1347-4065/ad4e81
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photoluminescence and scintillation properties of Tm:CaHfO3 single crystals were investigated. From the results of photoluminescence properties, all the Tm:CaHfO3 samples showed emission bands due to the 4f-4f transitions of Tm3+, and the 1.0% Tm:CaHfO3 sample showed the highest quantum yield among all the samples upon excitation at 360 nm. The afterglow levels at 20 ms after X-ray irradiation for 2 ms were approximately 12 000 ppm. Pulse height spectra using Cs-137 as gamma-ray source revealed the 1.0% Tm:CaHfO3 sample showed the highest light yield of 1250 photons MeV-1 among all the samples. (c) 2024 The Japan Society of Applied Physics.
引用
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页数:5
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