Influence of RE Doping on the Scintillation Properties of LSO Crystals

Author

Qin, Laishun ; Ren, Guohao ; Lu, Sheng ; Ding, Dongzhou ; Li, Huanying

Author_Institution

Coll. of Mater. Sci. & Eng., China Jiliang Univ., Hangzhou

Volume

55

Issue

3

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

1216

Lastpage

1220

Abstract

Rare Earth (RE) such as Y, La, Sc and Gd ions doped Ce:Lu₂SiO₅ (LSO) crystals, were grown by Czochralski method. The concentrations of these RE ions in LSO crystals were measured, and their segregation coefficients were calculated according to the concentrations. La³⁺ was found to be helpful to increase the segregation coefficients of Ce³⁺ in LSO crystals. Transmission, UV and X-ray excited emission spectra, and UV light emission decay curves of RE-doped LSO crystals were tested at room temperature. No significant difference in emission spectra and decay time can be identified among these RE-doped LSO crystals. Doping with La³⁺ may improve the energy resolution and photoelectron yield of LSO crystals.

Keywords

X-ray emission spectra; cerium; crystal growth from melt; doping profiles; gadolinium; lanthanum; light transmission; luminescence; lutetium compounds; scandium; scintillation; segregation; ultraviolet spectra; yttrium; Czochralski method; Lu₂SiO₅:Ce³⁺; Lu₂SiO₅:Gd³⁺; Lu₂SiO₅:La³⁺; Lu₂SiO₅:Sc³⁺; Lu₂SiO₅:Y³⁺; RE doping; RE ion concentrations; UV light emission decay curves; UV spectra; X-ray excited emission spectra; energy resolution; luminescent spectra; optical transmission spectra; photoelectron yield; scintillation properties; segregation coefficients; Atomic measurements; Ceramics; Crystalline materials; Doping; Earth; Photonic crystals; Plasma measurements; Powders; Temperature; Testing; LSO; RE doping; scintillation properties;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2008.915686

Filename

4545200