Optical and scintillation properties of Ce-doped LuLiF4 with different Ce concentrations

被引：43

作者：

Yanagida, Takayuki ^{[1
]}

Fujimoto, Yutaka ^{[1
]}

Fukuda, Kentaro ^{[2
]}

Chani, Valery ^{[3
]}

机构：

[1] Kyushu Inst Technol, Wakamatsu Ku, Kitakyushu, Fukuoka 8080196, Japan

[2] Tokuyama Corp, Shibuya Ku, Tokyo 1508383, Japan

[3] Tohoku Univ, Sendai, Miyagi 9808577, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2013年 / 729卷

关键词：

Scintillator; LuLiF4; Ce3+; Gamma-rays; CRYSTAL-GROWTH; ONBOARD ASTRO-E2; SINGLE-CRYSTALS; EMISSION; LUTETIUM; YIELD; GAMMA; LIYF4;

D O I：

10.1016/j.nima.2013.07.010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The crystals of 0.1, 0.5, and 1 mol% Ce-doped LuLiF4 (Ce:LLF) grown by the micro-pulling down (mu-PD) method were examined for their optical and scintillation properties. Ce:LLF crystals had similar to 80% transparency at wavelengths longer than 300 nm. In photoluminescence spectra, they demonstrated intense emission peaks at 310 and 330 nm with the quantum yield of 60-90%. Ce3+ 5d-4f emission peaks were also detected at similar wavelengths of 310 and 330 nm in the radioluminescence spectra obtained under X-ray excitation. According to pulse height spectra recorded under gamma-ray irradiation, the absolute light yield of Ce 0.1, 0.5, and 1% were 3600 +/- 400, 3000 +/- 300, and 1700 +/- 200 ph/MeV, respectively. Decay time kinetics was also inspected using a pulse X-ray equipped streak camera system. The decay time components of Ce:LLF were similar to 70 ns and similar to 1 mu s for all the samples. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：58 / 63

页数：6

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