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

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

1615

Lastpage

1618

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5874049

Filename

5874049