2022
Optimization of Design Parameters of Flat Panel Limited Angle TOF-PET Scanner: a Simulation Study
Orehar M, Dolenec R, Fakhri G, Gascón D, Gola A, Korpar S, Križan P, Razdevšek G, Pestotnik R. Optimization of Design Parameters of Flat Panel Limited Angle TOF-PET Scanner: a Simulation Study. 2022, 00: 1-4. DOI: 10.1109/nss/mic44845.2022.10399330.Peer-Reviewed Original ResearchImage quality phantomFlat-panel detectorGATE softwareRing scannerPanel detectorDetection chainState-of-the-artNEMA standardsOpen geometryImage reconstructionReconstructed imagesPositron emission tomographyState-of-the-art scannersScannerPhantomDetectorPhotodetectorsElectronNEMAMaterial costGatePositron
2021
Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications
Worstell W, Sajedi S, Bläckberg L, Feng Y, Aviles M, Butler S, Ertley C, Cremer T, Foley M, Foley C, Hamel C, Lyashenko A, Minot M, Popecki M, Rivera T, Stochaj M, Fakhri G, Sabet H. Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications. IEEE Transactions On Radiation And Plasma Medical Sciences 2021, 5: 651-661. DOI: 10.1109/trpms.2021.3065890.Peer-Reviewed Original ResearchTransit time spreadSingle-photon levelLaser pulse intensityPhotomultiplier tubeSubpicosecond laserElectronic noisePulse intensityPET applicationsLAPPDLaser excitationOptical filtersTime spreadResponse functionPulsePulse timePhotocathodeSpe valuesEntry faceLaserVoltage controlTime responsePhotodetectorsExcitationPeak amplitudeVoltageA layered single-side readout depth of interaction time-of-flight-PET detector
Bläckberg L, Sajedi S, Fakhri G, Sabet H. A layered single-side readout depth of interaction time-of-flight-PET detector. Physics In Medicine And Biology 2021, 66: 045025. PMID: 33570050, PMCID: PMC8130834, DOI: 10.1088/1361-6560/abd592.Peer-Reviewed Original ResearchConceptsDepth of interactionMulti-pixel photon counterDepth-of-interaction determinationDepth-of-interaction informationTime resolutionTime resolution valuesReduced crystal thicknessNon-DOI detectorsOptical photonsScintillator arrayPET detectorsPhoton counterCrystal pixelsReadout schemeCrystal arrayCrystal thicknessTransport simulationsDetectorPhotodetector arrayReadoutPixel sizePhotodetectorsResolution valuesFirst layerSignal amplitude
2019
New Detector Designs for High Resolution Brain PET
Bläckberg L, Sajedi S, Fakhri G, Sabet H. New Detector Designs for High Resolution Brain PET. 2019, 00: 1-5. DOI: 10.1109/nss/mic42101.2019.9059785.Peer-Reviewed Original ResearchLaser induced optical barriersLYSO:Ce crystalsScintillation light spreadIntrinsic resolutionDetector designCe crystalsOptical barrierBrain positron emission tomographyScintillationCrystal thicknessPhotodetector elementsTransverse resolutionDetectorPositron emission tomographyPhotodetectorsImproved positionLYSOCrystalReadoutResolutionLaserDependenceEmission tomography
2017
Simulation Study of Partially Laser-Processed LYSO:Ce with Single-Side Readout
Bläckberg L, Fakhri G, Sabet H. Simulation Study of Partially Laser-Processed LYSO:Ce with Single-Side Readout. 2017, 00: 1-4. DOI: 10.1109/nssmic.2017.8532855.Peer-Reviewed Original Research