Evaluation of Ce3+ and alkali metal ions Co-doped LiSrAlF6 crystalline scintillators |
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| Affiliation: | 1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. Kyushu Institute of Technology, Hibikino 2-4, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan;3. Institute of Physics, Academy of Sciences of The Czech Republic, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic;4. Tokuyama, Co. Ltd., Shibuya 3-chome, Shibuya-ku, Tokyo 150-8383, Japan;5. New Industry Creation Hatchery Center (NICHe), 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, PR China;2. National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Grirem Advanced Materials Co., Ltd., Beijing 100088, PR China;1. College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;2. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China;1. Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan;2. Tokuyama Corp, 1-1 Mikage-cho, Shunan-shi, Yamaguchi 745-8648, Japan;3. Kyusyu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 808-0196, Japan;4. Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;1. Department of Nuclear Engineering and Management, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;2. Department of Bioengineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;3. Union Materials, Kitasoma, Ibaraki 300-1602, Japan;4. Leading Edge Algorithm, Kitakatsuragi, Nara 635-0822, Japan;1. Department of Physics, Jinggangshan University, Ji’an 343009, PR China;2. School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, PR China;3. State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China;4. Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne, France;1. Shenzhen Key Laboratory for Advanced Materials, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, PR China;2. Centre for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;3. Center for Composite Materials, Harbin Institute of Technology, Harbin 150080, PR China |
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| Abstract: | High scintillation efficiency of Eu-doped LiSrAlF6 (LiSAF) and LiCaAlF6 (LiCAF) codoped with alkali metal ions has been reported in our recent studies. Thus in this paper, we demonstrated the scintillation properties of 1% Ce-doped LiSAF crystals with 1% alkali metal ions co-doping to increase the light yield and understand the scintillation mechanism. The crystals showed intense emission band corresponding to the 5d-4f transition of Ce3+, and their light yields under thermal neutron excitation were higher than that of the Ce only doped crystal. Especially, the light yield of Ce–Na co-doped crystal exceeded about two times that of Ce only doped one. |
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