CE-DOPED SCINTILLATORS - LSO AND LUAP

Authors
LEMPICKI A GLODO J
Citation
A. Lempicki et J. Glodo, CE-DOPED SCINTILLATORS - LSO AND LUAP, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 416(2-3), 1998, pp. 333-344
Citations number
27
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
416
Issue
2-3
Year of publication
1998
Pages
333 - 344
Database
ISI
SICI code
0168-9002(1998)416:2-3<333:CS-LAL>2.0.ZU;2-D
Abstract
In this paper we compare the scintillator performance of the two of th e leading contenders for Positron Emission Tomography, both cerium dop ed: Lu2SiO5 (LSO) and LuAlO3 (LuAP). LSO crystals come in two categori es, characterized by high (H) or low (L) light output. Such a distinct ion is not found in LuAP, but its output is consistently lower than th at of LSO-H. Based on decays, thermoluminescent data and dependence of light output on temperature, we conclude that the principal reason fo r the superior properties of LSO-H is its virtual absence of shallow t raps. LuAP also suffers from an additional handicap in the form of a p arasitic absorption of unknown origin, which causes a light output dep endence on the thickness of the sample. (C) 1998 Elsevier Science B.V. All rights reserved.