Advances in the scintillation performance of LSO:Ce single crystals

Author

Melcher, Charles L. ; Spurrier, Merry A. ; Eriksson, Lars ; Eriksson, Marita ; Schmand, Matthias ; Givens, Greg ; Terry, Rick ; Homant, Tim ; Nutt, Ronald

Author_Institution

CTI Adv. Crystal & Detector Technol., Rockford, TN, USA

Volume

50

Issue

4

fYear

2003

Firstpage

762

Lastpage

766

Abstract

We investigated the scintillation characteristics of 2186 LSO crystals that were cut from over 400 crystal boules. We measured the light output and energy resolution of all crystals and also measured the decay times of a broad sampling of the crystals. We observed a significant reduction in the variation of both light output and decay time in this population of crystals compared to the results previously published in 1998. The reduced variation in scintillation properties may be attributed to better control of the populations of the two Ce scintillation centers in LSO, as well as better control of the effect of quenching centers and the effects of Ce segregation during crystal growth.

Keywords

cerium; crystal growth; lutetium compounds; segregation; solid scintillation detectors; Lu₂SiO₅; crystal boules; crystal growth; decay times; energy resolution; quenching centers; scintillation performance; segregation; single crystals; Atmosphere; Crystals; Detectors; Energy measurement; Energy resolution; Furnaces; Impurities; Nitrogen; Raw materials; Technological innovation;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2003.814585

Filename

1221869