2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515) · 2003 · 11 citations · 4 references
Positron Emission TomographyUpgraded ElectronicsLso Pet ScannerEngineeringMeasurementCalibrationPet-mriPeak NecSame ScannerComputer EngineeringEducationSystems EngineeringPerformance ComparisonDetection TechnologyInstrumentationTdc Step ResolutionRadiology
Performance of an existing LSO PET scanner was compared to that of the same scanner with upgraded electronics. TDC step resolution decreased to 500 ps while background corrected system energy resolution increased to 18.89%. This allowed a lowering of the coincidence time window to 4.5 ns and an increase in the system LLD to 400 keV. Electronics dead time was reduced to 136 ns. Singles rates from each DEA were increased 100%. An almost 100% increase in NEC was achieved due to the increased electronics performance. The peak NEC was greater than 93,000.
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