Crystal growth and scintillation properties of Eu:BaAL2O4 crystals

被引：6

作者：

Nakauchi, Daisuke ^{[1
]}

Okada, Go ^{[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] Kanazawa Inst Technol, Dept Appl Chem, 7-1 Ohgigaoka, Nonoichi, Ishikawa 9218501, Japan

来源：

RADIATION MEASUREMENTS | 2020年 / 135卷

关键词：

S; cin; tillator; Dosimetry; Photoluminescence; Afterglow; Crystal growth; EXCITED OPTICAL LUMINESCENCE; PHOSPHOR CRYSTALS; SRAL2O4; ALUMINATE; BAAL2O4; EU2+;

D O I：

10.1016/j.radmeas.2020.106365

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A series of Eu-doped BaAL(2)O(4) crystals with different doping concentrations were grown by the floating zone technique, and the photoluminescence (PL) and scintillation properties were investigated. The samples exhibit PL and scintillation having a broad emission feature peaking around 500 nm, regardless of the concentration. From the spectral and decay time features, we confirm that the origin of the emission is the 5d-4f transitions of Eu2+. Determined by the pulse height analyses under Cs-137 gamma-ray irradiation, the scintillation light yields of the 0.1, 0.3, 1 and 3% Eu:BaAL(2)O(4) crystals are 19,000, 22,000, 23,000 and 28,000 photons/MeV, respectively.

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页数：4

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