Development of Eu-doped Sr2MgSi2O7 single crystalline scintillators

被引：6

作者：

Igashira, Kenta ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Ogawa, Taiki ^{[1
]}

Kato, Takumi ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, 8916-5 Takayama, Nara 6300192, Japan

来源：

OPTICAL MATERIALS | 2020年 / 109卷

关键词：

Scintillator; Single crystal; Melilite; Europium; Floating zone method; Photoluminescence; PERSISTENT LUMINESCENCE; OPTICAL-PROPERTIES; PHOSPHORS; ENHANCEMENT; CZOCHRALSKI; CE;

D O I：

10.1016/j.optmat.2020.110270

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Undoped and Eu-doped Sr2MgSi2O7 single crystals were synthesized using the optical Floating Zone method, and the photoluminescence and scintillation properties were evaluated. A broad emission band at 470 nm is observed in the Eu-doped samples in photoluminescence and scintillation spectra. The decay curves demonstrate that it is due to the 5d-4f transition of Eu2+. The 2.0% and 5.0% Eu-doped samples show the highest scintillation light yield of 10,400 ph/MeV under gamma-rays irradiation from Co-57, and the best afterglow level of 50 ppm among the present samples, respectively.

引用

页数：6

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