Single Crystal Growth, Optical Properties and Neutron Response of Ce3+ Doped LiCaAlF6

被引：75
|
作者：
Yoshikawa, Akira [1 ,2 ]
Yanagida, Takayuki [1 ,2 ]
Yokota, Yuui [1 ,2 ]
Kawaguchi, Noriaki [3 ]
Ishizu, Sumito [3 ]
Fukuda, Kentaro [3 ]
Suyama, Toshihisa [3 ]
Kim, Kyoung Jin [1 ,2 ]
Pejchal, Jan [1 ,2 ,4 ]
Nikl, Martin [4 ]
Watanabe, Kenichi [5 ]
Miyake, Masayasu [6 ]
Baba, Mamoru [6 ]
Kamada, Kei [1 ,2 ]
机构：
[1] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, New Ind Creat Hatchery Ctr NICHe, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Tokuyama Corp, Shibuya Ku, Tokyo 1508383, Japan
[4] Inst Phys AS CR, Prague 16253, Czech Republic
[5] Nagoya Univ, Dept Quantum Engn, Nagoya, Aichi 4648603, Japan
[6] Tohoku Univ, Ctr Cyclotron & Radioisotope, Aoba Ku, Sendai, Miyagi 9808578, Japan
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2009年 / 56卷 / 06期
关键词：
Crystal growth; scintillators; PULLING-DOWN METHOD; RARE-EARTH; SCINTILLATORS;
D O I：
10.1109/TNS.2009.2033115
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ce2% : (LiCaAlF6)-Li-6 ((6)LiCAF) single crystal (nominal composition) with 2 mm in diameter and 50 mm in length was grown by the micro-pulling-down method. Emission from the perturbed Ce3+ centers was observed in an alpha-ray excited radioluminescence. The neutron response was compared with Li-glass (GS20, Saint-Gobain) using Cf-252. The scintillation decay time of Ce2% : (6)LiCAF is 38 nsec, which is twice as short as that of GS20. Using Hamamatsu photomultiplier H7416 the photoelectron yield about a half of that of GS20 has been measured for the Ce : (6)LiCAF single crystal. Considering the light yield of GS20 (6000 phot/neutron) and the spectral correction due to the different emission peak position in both materials, the light yield of Ce : (6)LiCAF single crystal is estimated about 4200 phot/neutron.
引用
收藏
页码：3796 / 3799
页数：4
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