Fabrication, optical and scintillation properties of transparent YAG:Ce ceramics

被引：47

作者：

Osipov, V. V. ^{[1
]}

Ishchenko, A. V. ^{[2
]}

Shitov, V. A. ^{[1
]}

Maksimov, R. N. ^{[1
,2
]}

Lukyashin, K. E. ^{[1
]}

Platonov, V. V. ^{[1
]}

Orlov, A. N. ^{[1
]}

Osipov, S. N. ^{[2
]}

Yagodin, V. V. ^{[2
]}

Viktorov, L. V. ^{[2
]}

Shulgin, B. V. ^{[2
]}

机构：

[1] RAS, Inst Electrophys UrB, Ekaterinburg 620016, Russia

[2] Ural Fed Univ, Ekaterinburg 620002, Russia

来源：

OPTICAL MATERIALS | 2017年 / 71卷

关键词：

Transparent ceramics; Scintillator; Laser ablation; Nanopowder; Yttrium aluminium garnet; Cerium; SINGLE-CRYSTAL; LUMINESCENCE; NANOPOWDERS; DETECTORS; PHOSPHOR;

D O I：

10.1016/j.optmat.2016.05.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly transparent YAG:Ce ceramics (transmission of 72-82% for 2-mm-thick samples in 550-900 nm wavelength range) were fabricated by solid-state reactive sintering using a mixture of Ce2xY2-2xO3 (x = 0.001, 0.01, 0.03, and 0.05) and Al2O3 nanopowders synthesized by laser ablation with an additional round of pre-calcining before compaction. The synthesized YAG:Ce ceramic materials showed intense luminescence with a maximum at 525-545 nm. The measured absolute light yields of the synthesized YAG:Ce ceramics were 18-21 photon/MeV for 1-5 at.% Ce and 5 photon/MeV for 0.1 at.% Ce. The energy resolutions of the fabricated thin ceramic samples (2 mm) under 662 keV gamma ray were measured to be 10-15%. The decay curves of scintillations consisted of two components with the decay times depending on the Ce3+ concentration. The sample doped with 5 at.% of Ce exhibited the main fast component with 26 ns decay time. The measured data was compared to that of YAG:Ce and well-known CsI:T1 single crystal scintillators. The influence of dopant concentration on the optical, luminescence and scintillation properties was discussed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：98 / 102

页数：5

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