Comparative study of optical and scintillation properties of YVO4, (Lu0.5Y0.5)VO4, and LuVO4 single crystals

被引：25
|
作者：
Fujimoto, Yutaka [1 ]
Yanagida, Takayuki [1 ]
Yokota, Yuui [1 ]
Chani, Valery [1 ]
Kochurikhin, Vladimir V. [3 ]
Yoshikawa, Akira [1 ,2 ]
机构：
[1] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, NICHe, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Inst Gen Phys, Moscow 119991, Russia
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 635卷 / 01期
关键词：
Single crystal; Scintillator; Vanadate; FLOATING-ZONE METHOD; LASER PROPERTIES; GROWTH; PHOSPHORS; ORTHOVANADATE; YB; ND; LUMINESCENCE; RE; TM;
D O I：
10.1016/j.nima.2011.01.044
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Optical and scintillation properties of YVO4, (Lu0.5Y0.5)VO4, and LuVO4 single crystals grown by the Czochralski (CZ) method with RF heating system are compared. All vanadate crystals show high transmittance (similar to 80%) in the 400-900 nm wavelength range. In both photo- and radio-luminescence spectra, intense peak around 400-500 nm, which was ascribed to the transition from triplet state of VO43-, was clearly observed. The main decay time component was about 38 mu s (YVO4), 18 mu s ((Lu0.5Y0.5)VO4), and 17 mu s (LuVO4) under 340 nm excitation. The scintillation light yields of YVO4. (Lu0.5Y0.5)VO4, and LuVO4 crystals (obtained from the Cs-137 excited pulse height spectra) were evaluated to be about 11,200, 10,700, and 10,300 ph/MeV, respectively. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：53 / 56
页数：4
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