Title :
2-inch size single crystal growth and scintillation properties of new scintillator; Ce:Gd3Al2Ga3O12
Author :
Kamada, Kei ; Yanagida, Takayuki ; Endo, Takanori ; Tsutumi, Kousuke ; Usuki, Yoshiyuki ; Nikl, Martin ; Fujimoto, Yutaka ; Yoshikawa, Akira
Author_Institution :
Mater. Res. Lab., Furukawa Co. Ltd., Tsukuba, Japan
Abstract :
In this report 2inch size Ce:Gd3Al2Ga3O12 (Ce:GAGG) single crystals were grown by the Czhocralski (Cz) method. Luminescence and scintillation properties were measured. In order to determine light yield the energy spectra were collected under 662 keV γ-ray excitation(137Cs source) were detected by a APD S8664-55(Hamamatsu). The light yield of CeGAGG sample was calibrated from 55Fe direct irradiation peak to APD. The light yield was around 46,000photon/MeV. Energy resolution was 4.9%@662keV by using 3×3×1mm size sample. The density of CeGAGG is theoretically 6.63 g/cm3. Further results will be reported in the presentation.
Keywords :
aluminium compounds; calibration; cerium; crystal growth from melt; gadolinium compounds; gallium compounds; gamma-ray effects; photoluminescence; solid scintillation detectors; APD S8664-55 detector; Czhocralski method; Gd3Al2Ga3O12:Ce; calibration; density; electron volt energy 662 keV; energy resolution; energy spectra; gamma-ray excitation; luminescence; scintillation property; single crystal growth; Energy resolution; Heating;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE
Conference_Location :
Valencia
Print_ISBN :
978-1-4673-0118-3
DOI :
10.1109/NSSMIC.2011.6154387
