TY - JOUR
T1 - Scintillation properties of Ce doped Gd 2Lu 1(Ga,Al) 5O 12 single crystal grown by the micro-pulling-down method
AU - Kamada, Kei
AU - Yanagida, Takayuki
AU - Pejchal, Jan
AU - Nikl, Martin
AU - Endo, Takanori
AU - Tsutsumi, Kousuke
AU - Usuki, Yoshiyuki
AU - Fujimoto, Yutaka
AU - Fukabori, Akihiro
AU - Yoshikawa, Akira
N1 - Funding Information:
This work was mainly supported by JST Sentan and partially by a Grant in Aid for Young Scientists (B)-15686001 , (A)-23686135 , and Challenging Exploratory Research - 23656584 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT) . Partial financial support from Czech AV M100100910 and GACR 202/08/0893 projects is also gratefully acknowledged.
PY - 2012/8/1
Y1 - 2012/8/1
N2 - Ce:Gd 2Lu 1(Ga,Al) 5O 12 single crystals were grown by the micro-pulling down (μ-PD) method. All grown crystals were yellow and transparent with 3.0 mm in diameter, 15-30 mm in length. Neither visible inclusions nor cracks were observed. Luminescence and scintillation properties were measured. The substitution at the Al 3+ sites by Ga 3+ and at the Lu 3+ sites by Gd 3+ in garnet structure has been studied. In these crystals, Ce 3+ 4f-5d emission is observed with 500-530 nm wavelength. The decay accelerates with increasing Ga and Ce concentration. Ce1%: Gd 2Lu 1Ga 3Al 2O 12 shows the highest emission intensity. The light yield of Ce:Gd 2Lu 1Ga 3Al 2O 12 sample with 3 mmφ×1 mm size was around 22,000 photon/MeV using calibration from 55Fe direct irradiation peak to APD. Scintillation decay time was around 50 ns. The theoretical density is 6.88 g/cm 3.
AB - Ce:Gd 2Lu 1(Ga,Al) 5O 12 single crystals were grown by the micro-pulling down (μ-PD) method. All grown crystals were yellow and transparent with 3.0 mm in diameter, 15-30 mm in length. Neither visible inclusions nor cracks were observed. Luminescence and scintillation properties were measured. The substitution at the Al 3+ sites by Ga 3+ and at the Lu 3+ sites by Gd 3+ in garnet structure has been studied. In these crystals, Ce 3+ 4f-5d emission is observed with 500-530 nm wavelength. The decay accelerates with increasing Ga and Ce concentration. Ce1%: Gd 2Lu 1Ga 3Al 2O 12 shows the highest emission intensity. The light yield of Ce:Gd 2Lu 1Ga 3Al 2O 12 sample with 3 mmφ×1 mm size was around 22,000 photon/MeV using calibration from 55Fe direct irradiation peak to APD. Scintillation decay time was around 50 ns. The theoretical density is 6.88 g/cm 3.
KW - A2. Single crystal growth
KW - B1.Oxides
KW - B2. Scintillator materials
KW - B3. Scintillators
UR - http://www.scopus.com/inward/record.url?scp=84863313916&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863313916&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2011.11.057
DO - 10.1016/j.jcrysgro.2011.11.057
M3 - Article
AN - SCOPUS:84863313916
SN - 0022-0248
VL - 352
SP - 35
EP - 38
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1
ER -