Evaluation of scintillation properties of Mg4(Ta,Nb)2O9 single crystals

被引：20

作者：

Hayashi, Taisei ^{[1
]}

Ichiba, Kensei ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Watanabe, Kenichi ^{[2
]}

Kato, Takumi ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

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

[2] Kyushu Univ, Grad Sch Engn, 744 Motooka,Nishi ku, Fukuoka, Fukuoka 8190395, Japan

来源：

JOURNAL OF LUMINESCENCE | 2023年 / 255卷

基金：

日本学术振兴会;

关键词：

Scintillator; Photoluminescence; Scintillation detector; Charge transfer; Floating zone method; LUMINESCENCE; MG4TA2O9; PERFORMANCE; NEUTRON;

D O I：

10.1016/j.jlumin.2022.119614

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mg-4(Ta,Nb)(2)O-9 single crystals were synthesized by the floating zone method, and the photoluminescence and scintillation properties were evaluated. Under X-ray irradiation, Mg4Ta2O9 single crystal showed an emission peak at 350 nm, while Nb-contained ones showed an emission peak at 400 nm. The decay curves were approximated by one exponential decay function, which indicated the decay time in mu s order. Among the samples, Mg4Ta1.5Nb0.5O9 showed the highest light yield of 22,000 ph/MeV and the lowest afterglow levels of similar to 10 ppm.

引用

页数：5

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