2021
Investigation of a Model-Based Time-Over-Threshold Technique for Phoswich Crystal Discrimination
Bouziri H, Pepin C, Koua K, Benhouria M, Paulin C, Ouyang J, Normandin M, Pratte J, Fakhri G, Lecomte R, Fontaine R. Investigation of a Model-Based Time-Over-Threshold Technique for Phoswich Crystal Discrimination. IEEE Transactions On Radiation And Plasma Medical Sciences 2021, 6: 393-403. PMID: 35372739, PMCID: PMC8974315, DOI: 10.1109/trpms.2021.3077412.Peer-Reviewed Original ResearchPulse shape discriminationCrystal identificationPhoswich detectorEnergy windowTime-over-threshold techniqueBroad energy windowCR-RC shaperCharge sensitive preamplifierFree running analogPhoswich assembliesLYSO scintillatorSensitive preamplifierCrystal discriminationAPD arraysShape discriminationEvent energyElectronic readoutTime of occurenceDecay timeLGSODetectorIncreasing pixelizationLYSODetection front endCrystal
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
2016
Scintillator-Based Photon Counting Detector: Is it Feasible?
Bläckberg L, Moebius M, Moghadam N, Uzun-Ozsahin D, Mazur E, Fakhri G, Sabet H. Scintillator-Based Photon Counting Detector: Is it Feasible? 2016, 1-5. DOI: 10.1109/nssmic.2016.8069382.Peer-Reviewed Original ResearchLaser induced optical barriersPhoton counting detectorsScintillator arrayOptical barrierBarrier refractive indexRefractive indexApplication Specific Integrated CircuitFast decay timeHigh light outputBuilt-in photodiodeScintillation lightLYSO crystalsCounting detectorsScintillator pixelsEnergy windowAtomic numberScintillationDecay timeLight outputLaserDetectorTransparent crystalsCrystalIntegrated circuitsLaser cutting techniqueNovel laser‐processed CsI:Tl detector for SPECT
Sabet H, Bläckberg L, Uzun-Ozsahin D, El-Fakhri G. Novel laser‐processed CsI:Tl detector for SPECT. Medical Physics 2016, 43: 2630-2638. PMID: 27147372, PMCID: PMC5148208, DOI: 10.1118/1.4947294.Peer-Reviewed Original ResearchConceptsOptical barrierPeak-to-valley (P/VCsI:Tl crystalsCrystal bulkMultipixel photon counterPixel-like patternScintillation lightEnergy resolutionKeV gammasPixelated scintillatorScintillator samplesPhoton counterTL detectorsTl crystalsFabricated detectorScintillationCrystal thicknessSpatial resolutionPixel arrayDetectorBarrier patternsFabricated arraysCSICrystalBulk