Title :
Scintillation characteristics of (Gd1-x,Cex)2Si2O7 (x = 0.025 − 0.25 ) single crystals fabricated by floating zone method
Author :
Kawamura, S. ; Kaneko, J.H. ; Higuchi, M. ; Haruna, J. ; Saeki, S. ; Fujita, F. ; Homma, A. ; Nishiyama, S. ; Ueda, S. ; Kurashige, K. ; Ishibashi, H. ; Furusaka, M.
Author_Institution :
Hokkaido Univ., Sapporo
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
Cerium-doped gadolinium pyrosilicate single crystals Ce : Gd2Si2O7 with various Ce concentrations of 2.5-25 mol% were fabricated using floating zone method. Their scintillation performances were investigated under irradiation of gamma rays of 137Cs. The Ce concentration dependence of scintillation characteristics and high- performance scintillation characteristics were obtained: 3-5 times greater light output than BGO single crystals, rapid decay, and good energy resolutions of 5.1-8.4%. X-ray diffraction patterns of Ce : Gd2Si2O7 also showed Ce concentration dependence of the crystal structure of Ce : Gd2Si2O7.
Keywords :
X-ray diffraction; cerium; crystal structure; gadolinium compounds; gamma-ray effects; scintillation; scintillation counters; zone melting; 137Cs; BGO single crystals; GdCeSi2O7; X-ray diffraction patterns; cerium-doped gadolinium pyrosilicate single crystals; crystal structure; energy resolutions; floating zone method; gamma ray irradiation; scintillation characteristics; Atmosphere; Crystalline materials; Crystals; Energy resolution; Gamma rays; Luminescence; Mortar; Powders; Shafts; X-ray diffraction;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4437254
