Title :
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
fDate :
6/1/2008 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2008.915686
