Evaluation of cerium doped lutetium oxyorthosilicate (LSO) scintillation crystal for PET

A new scintillation crystal, cerium-doped lutetium oxyorthosilicate (LSO) was recently discovered. In this study we directly compared the detection characteristics relevant to PET applications of small crystals of LSO (2 X 2 X 10 mm) with those of BGO. The energy resolution at 511 keV was 12% FWHM f...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on nuclear science 1993, Vol.40 (4), p.1045-1047
Main Authors: DAGHIGHIAN, F, SHENDEROV, P, PENTLOW, K. S, GRAHAM, M. C, ESHAGHIAN, B, MELCHER, C. L, SCHWEITZER, J. S
Format: Article
Language:English
Subjects:
550601 - Medicine- Unsealed Radionuclides in Diagnostics
ACCURACY
Biological and medical sciences
COMPARATIVE EVALUATIONS
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
EVALUATION
Investigative techniques, diagnostic techniques (general aspects)
MEASURING INSTRUMENTS
Medical sciences
Miscellaneous. Technology
PERFORMANCE TESTING
POSITRON COMPUTED TOMOGRAPHY
RADIATION DETECTORS
RADIOLOGY AND NUCLEAR MEDICINE
Radionuclide investigations
RESOLUTION
SCINTILLATION COUNTERS
TESTING
TOMOGRAPHY
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new scintillation crystal, cerium-doped lutetium oxyorthosilicate (LSO) was recently discovered. In this study we directly compared the detection characteristics relevant to PET applications of small crystals of LSO (2 X 2 X 10 mm) with those of BGO. The energy resolution at 511 keV was 12% FWHM for LSO and 2 to 3 times wider for BGO. The coincidence timing of two opposing crystals, using a position sensitive PMT (Hamamatsu R2486), were 1.4 ns FWHM for LSO and more than 3 times higher for BGO. Using a fast PMT (Hamamatsu R3177) coincidence timing for LSO yielded 0.46 ns FWHM. These crystals are being used to simulate a small scale PET scanner and to investigate its imaging performance.
ISSN:0018-9499
1558-1578
DOI:10.1109/23.256710