Title :
Comparison of LSO, LGSO and MLS scintillators
Author :
Pepin, Catherine M. ; Bérard, Philippe ; Lecomte, Roger
Author_Institution :
Dept. of Nucl. Medicine & Radiobiol., Sherbrooke Univ., Que., Canada
Abstract :
The luminescence and nuclear spectroscopic properties of recent LSO, LGSO and MLS scintillators were investigated and compared to those of older LSO and LGSO crystals. UV-excited luminescent spectra outline important similarities between these scintillators. The two distinct luminescence mechanisms previously identified in LSO appear to be present in all crystals. The relative light yield and energy resolution were assessed using an avalanche photodiode (APD) readout. The energy resolution of all scintillators is found to be affected by an important systematic contribution that seriously limits the crystal resolution, irrespective of the light yield.
Keywords :
avalanche photodiodes; lutetium compounds; magnesium compounds; photoluminescence; position sensitive particle detectors; solid scintillation detectors; ultraviolet spectra; LGSO scintillator; LSO scintillator; Lu2SiO5; LuGeSiO; MLS scintillator; UV-excited luminescent spectra; avalanche photodiode readout; crystal resolution; energy resolution; luminescence; nuclear spectroscopic properties; relative light yield; Avalanche photodiodes; Biomedical imaging; Energy resolution; Luminescence; Multilevel systems; Nuclear medicine; Photonic crystals; Spectroscopy; Statistics; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008424
