TY - JOUR
T1 - Growth and scintillation properties of Pr-doped Lu3Al 5O12 crystals
AU - Ogino, Hiraku
AU - Yoshikawa, Akira
AU - Nikl, Martin
AU - Krasnikov, Aleksei
AU - Kamada, Kei
AU - Fukuda, Tsuguo
N1 - Funding Information:
This work was partially supported by Innovation plaza Miyagi project from Japan Science and Technology agency (JST) and the Industrial Technology Research Grant Program in 03A26014a from New Energy and Industrial Technology Development Organization (NEDO) of Japan. Partial support of the Czech MSMT, KONTAKT grant 1P2004ME716 and Estonian Science Foundation Grant No. 6548 is also gratefully acknowledged.
PY - 2006/1/25
Y1 - 2006/1/25
N2 - Pr-doped Lu3Al5O12 (Pr:LuAG) single crystals were grown by the micro-pulling-down (μ-PD) method and Czochralski (Cz) method. The crystals were seeded-grown in the 〈1 1 1〉 direction. Dimensions up to 30 mm in length and 5 mm in diameter by μ-PD and up to 100 mm in length and 22 mm in diameter by Cz method were achieved. Concentration of Pr3+ in Cz-grown Pr:LuAG was measured. Radioluminescence spectra and photoluminescence decay of Pr:LuAG were investigated and compared to Pr-doped Y3Al5O12 (Pr:YAG) single crystals. Pr:LuAG crystals show better temperature stability of radioluminescence intensity and decay time compared to Pr:YAG, and luminescence was not quenched even at room temperature (RT). Scintillation light yield of Cz-grown Pr:LuAG was measured and compared to the standard BGO sample. Light yield of Pr:LuAG was more than two times higher than BGO and the relationship between Pr3+ concentration and light yield was clarified.
AB - Pr-doped Lu3Al5O12 (Pr:LuAG) single crystals were grown by the micro-pulling-down (μ-PD) method and Czochralski (Cz) method. The crystals were seeded-grown in the 〈1 1 1〉 direction. Dimensions up to 30 mm in length and 5 mm in diameter by μ-PD and up to 100 mm in length and 22 mm in diameter by Cz method were achieved. Concentration of Pr3+ in Cz-grown Pr:LuAG was measured. Radioluminescence spectra and photoluminescence decay of Pr:LuAG were investigated and compared to Pr-doped Y3Al5O12 (Pr:YAG) single crystals. Pr:LuAG crystals show better temperature stability of radioluminescence intensity and decay time compared to Pr:YAG, and luminescence was not quenched even at room temperature (RT). Scintillation light yield of Cz-grown Pr:LuAG was measured and compared to the standard BGO sample. Light yield of Pr:LuAG was more than two times higher than BGO and the relationship between Pr3+ concentration and light yield was clarified.
KW - A1. Characterization
KW - A2. Growth from melt
KW - B1. Oxides
KW - B2. Scintillator materials
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U2 - 10.1016/j.jcrysgro.2005.11.023
DO - 10.1016/j.jcrysgro.2005.11.023
M3 - Article
AN - SCOPUS:30344476694
VL - 287
SP - 335
EP - 338
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
IS - 2
ER -