TY - GEN
T1 - 2-inch size crystal growth of Ce:Gd3Al2Ga 3O12 with various Ce concentration and their scintillation properties
AU - Kamada, Kei
AU - Prusa, Petr
AU - Nikl, Martin
AU - Piemonte, Claudio
AU - Tarolli, Alessandro
AU - Yanagida, Takayuki
AU - Endo, Takanori
AU - Tsutumi, Kousuke
AU - Yoshikawa, Akira
PY - 2012/12/1
Y1 - 2012/12/1
N2 - 2 inch size Ce0.2, 1%, 2.5% and 3% doped Gd3(Ga,Al) 5O12 (GAGG) single crystals were grown by the Cz method. Luminescence and scintillation properties were measured. Light yield change along the growth direction and effects of Ce concentration on scintillation properties in Ce:GAGG were studied. Ce3+ 5d-4f emission within 520-530nm was observed in the Ce:GAGG crystals. The Ce1%:GAGG sample with 5×5×5mm size showed the highest light yield of 62000 photon/MeV. The energy resolution was 4.7%@662keV. With increasing solidification fraction, the LY were decreased. It is proposed that the increase of Ga concentration along the growth direction is the main cause of the decrease of LY. The scintillation decay times were accelerated with increasing Ce concentration in the Ce:GAGG crystals. The scintillation decay times were 92.0ns, 79.1ns and 68.3ns in the Ce1, 2 and 3% GAGG, respectively. Ce0.2% sample showed scintillation decay time of 61.9ns (49%) with slower decay component of 595ns(51%).
AB - 2 inch size Ce0.2, 1%, 2.5% and 3% doped Gd3(Ga,Al) 5O12 (GAGG) single crystals were grown by the Cz method. Luminescence and scintillation properties were measured. Light yield change along the growth direction and effects of Ce concentration on scintillation properties in Ce:GAGG were studied. Ce3+ 5d-4f emission within 520-530nm was observed in the Ce:GAGG crystals. The Ce1%:GAGG sample with 5×5×5mm size showed the highest light yield of 62000 photon/MeV. The energy resolution was 4.7%@662keV. With increasing solidification fraction, the LY were decreased. It is proposed that the increase of Ga concentration along the growth direction is the main cause of the decrease of LY. The scintillation decay times were accelerated with increasing Ce concentration in the Ce:GAGG crystals. The scintillation decay times were 92.0ns, 79.1ns and 68.3ns in the Ce1, 2 and 3% GAGG, respectively. Ce0.2% sample showed scintillation decay time of 61.9ns (49%) with slower decay component of 595ns(51%).
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U2 - 10.1109/NSSMIC.2012.6551401
DO - 10.1109/NSSMIC.2012.6551401
M3 - Conference contribution
AN - SCOPUS:84881582853
SN - 9781467320306
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 1698
EP - 1701
BT - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
T2 - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Y2 - 29 October 2012 through 3 November 2012
ER -