Title :
Optical and scintillation properties of CeCl3 and Ce doped LaBr3 single crystals grown by modified micro-pulling-down method
Author :
Yokota, Y. ; Yoshikawa, A. ; Yanagida, T. ; Kawaguchi, N. ; Fukuda, K. ; Totsuka, D.
Author_Institution :
Inst. of Multidiscipl. Res. for Adv. Mater., Tohoku Univ., Sendai, Japan
fDate :
Oct. 30 2010-Nov. 6 2010
Abstract :
We developed a modified micro-pulling-down (μ-PD) method for crystal growth of halide materials with hygroscopic nature. By the modified μ-PD method, CeCl3 and Ce doped LaBr3 [Ce: LaBr3] single crystals were grown and the crystals indicated high transparency. In the photoluminescence measurements, emissions of Ce3+ ion 5d-4f transition were observed in the both crystals of CeCl3 and Ce: LaBr3. Emission peak originated from 5d-4f transition of Ce3+ ion were observed around 430 nm by radiation from X-ray. In the decay curve of Ce:LaBr3 single crystal with radiation of γ-ray from 137Cs source, decay time was about 36 ns.
Keywords :
X-ray detection; cerium; cerium compounds; crystal growth from melt; gamma-ray detection; lanthanum; lanthanum compounds; photoluminescence; radioactive sources; solid scintillation detectors; transparency; 5d-4f transition; 137Cs source; Ce:LaBr3; CeCl3; X-ray radiation; crystal growth; decay curve; decay time; gamma-ray radiation; halide materials; modified micropulling-down method; optical properties; photoluminescence measurements; scintillation properties;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-9106-3
DOI :
10.1109/NSSMIC.2010.5874049
