TY - JOUR
T1 - Scintillation characteristics of Pr-doped Lu3Al5O12 single crystals
AU - Ogino, H.
AU - Yoshikawa, A.
AU - Nikl, M.
AU - Kamada, K.
AU - Fukuda, T.
N1 - Funding Information:
This work was partially supported by the Innovation Plaza Miyagi project from the Japan Science and Technology Agency (JST) and the Industrial Technology Research Grant Program in 03A26014a from the New Energy and Industrial Technology Development Organization (NEDO) as well as a Grant in Aid for Young Scientists (A), 15686001, 2003 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT). Partial support of the Czech MSMT, KONTAKT Grant 1P2004ME716 is also gratefully acknowledged.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - Pr-doped Lu3Al5O12 (Pr:LuAG) bulk single crystals were grown by Czochralski method. The crystals were seeded-grown in the 〈1 1 1〉 direction. Dimensions up to 100 mm in length and 1 in in diameter were achieved without cracking. Concentrations of Pr3+ in several parts of grown crystals were measured precisely and segregation coefficients of each crystal were determined. Scintillation light yield of each part of the crystals was measured and dependence on light yield on Pr concentration was determined. Optimum concentration of Pr was clarified and compared to the standard Bi4Ge3O12(BGO) sample; Pr optimum concentration was around 0.2-0.3% and light yield of Pr:LuAG was more than two times higher than BGO. Scintillation decay of Pr:LuAG was measured and a dominant decay time of about 20 ns was evaluated.
AB - Pr-doped Lu3Al5O12 (Pr:LuAG) bulk single crystals were grown by Czochralski method. The crystals were seeded-grown in the 〈1 1 1〉 direction. Dimensions up to 100 mm in length and 1 in in diameter were achieved without cracking. Concentrations of Pr3+ in several parts of grown crystals were measured precisely and segregation coefficients of each crystal were determined. Scintillation light yield of each part of the crystals was measured and dependence on light yield on Pr concentration was determined. Optimum concentration of Pr was clarified and compared to the standard Bi4Ge3O12(BGO) sample; Pr optimum concentration was around 0.2-0.3% and light yield of Pr:LuAG was more than two times higher than BGO. Scintillation decay of Pr:LuAG was measured and a dominant decay time of about 20 ns was evaluated.
KW - A1. Characterization
KW - A2. Growth from melt
KW - B1. Oxides
KW - B2. Scintillator materials
KW - B3. Scintillators
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U2 - 10.1016/j.jcrysgro.2006.04.021
DO - 10.1016/j.jcrysgro.2006.04.021
M3 - Article
AN - SCOPUS:33745983310
SN - 0022-0248
VL - 292
SP - 239
EP - 242
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 2
ER -