TY - JOUR
T1 - Shaped single crystal growth and scintillation properties of Bi:Gd 3Ga 5O 12
AU - Novoselov, A.
AU - Yoshikawa, A.
AU - Nikl, M.
AU - Solovieva, N.
AU - Fukuda, T.
N1 - Funding Information:
This work was partially supported by the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid for Young Scientists (A), 15686001, 2003 (AY). Partial support of Czech Research Project K1010104 is gratefully acknowledged.
PY - 2005/1/21
Y1 - 2005/1/21
N2 - Shaped single crystals of Bi:Gd 3Ga 5O 12 (Bi=0.102, 0.126 and 0.141%) were grown by the modified micro-pulling-down method. Strong evaporation of Bi during single crystal growth leading to lower concentration in the obtained crystals was detected. Measured optical absorption spectra show an absorption band round 290 nm ascribed to the lowest energy 6s 2→6s6p transition of Bi 3+. In the radioluminescence spectra in the region of 440-560 nm an emission composed of two bands and depending on Bi concentration was found and completed by the decay kinetics measurements. Unsuitability of Bi-doping in the Gd 3Ga 5O 12 host to get energy transfer from Gd 3+ towards Bi 3+ centers was concluded.
AB - Shaped single crystals of Bi:Gd 3Ga 5O 12 (Bi=0.102, 0.126 and 0.141%) were grown by the modified micro-pulling-down method. Strong evaporation of Bi during single crystal growth leading to lower concentration in the obtained crystals was detected. Measured optical absorption spectra show an absorption band round 290 nm ascribed to the lowest energy 6s 2→6s6p transition of Bi 3+. In the radioluminescence spectra in the region of 440-560 nm an emission composed of two bands and depending on Bi concentration was found and completed by the decay kinetics measurements. Unsuitability of Bi-doping in the Gd 3Ga 5O 12 host to get energy transfer from Gd 3+ towards Bi 3+ centers was concluded.
KW - Bi3
KW - Garnet
KW - Luminiscent properties
KW - Shaped single crystal growth
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U2 - 10.1016/j.nima.2004.08.019
DO - 10.1016/j.nima.2004.08.019
M3 - Article
AN - SCOPUS:11344286207
VL - 537
SP - 247
EP - 250
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1-2 SPEC. ISS.
ER -