2019
Exploring light confinement in laser-processed LYSO:Ce for photon counting CT application
Bläckberg L, Sajedi S, Mandl S, Mohan A, Vittum B, Fakhri G, Sabet H. Exploring light confinement in laser-processed LYSO:Ce for photon counting CT application. Physics In Medicine And Biology 2019, 64: 095020. PMID: 30897557, PMCID: PMC7191943, DOI: 10.1088/1361-6560/ab1213.Peer-Reviewed Original ResearchConceptsLaser induced optical barriersPhoton counting detectorsLight collection efficiencyCrystal pixelsLYSO:Ce detectorsHigh dose efficiencyPixel arrayCounting detectorsDetector designDose efficiencyOptical barrierPd edgePhotodetector (PDRough interfaceIncreased cross-talkCE detectorCT applicationsDetectorLaser ablationPixel sizeConfinementSmooth ablationLYSOSpatial resolutionCollection efficiency
2018
Light Spread Manipulation in Scintillators Using Laser Induced Optical Barriers
Bläckberg L, Moebius M, Fakhri G, Mazur E, Sabet H. Light Spread Manipulation in Scintillators Using Laser Induced Optical Barriers. IEEE Transactions On Nuclear Science 2018, 65: 2208-2215. PMID: 30905974, PMCID: PMC6424510, DOI: 10.1109/tns.2018.2809570.Peer-Reviewed Original ResearchDepth of interactionOptical barrierLYSO:Ce detectorsDepth-of-interaction informationLYSO:CeHigh-resolution PET imagesRefractive indexResolution PET imagingScintillation lightScintillation detectorDetector edgesReadout configurationDetector typesMonolithic crystalsBarrier patternsCrystal bulkCE detectorScintillationDetectorLYSOLiOBPixel arrayPET imagingLaserLight transport simulation
2017
Simulation study of light transport in laser-processed LYSO:Ce detectors with single-side readout
Bläckberg L, Fakhri G, Sabet H. Simulation study of light transport in laser-processed LYSO:Ce detectors with single-side readout. Physics In Medicine And Biology 2017, 62: 8419-8440. PMID: 29047453, PMCID: PMC5736368, DOI: 10.1088/1361-6560/aa8dea.Peer-Reviewed Original ResearchConceptsDetector typesLYSO:Ce detectorsLYSO:Ce crystalsBarrier refractive indexScintillation light transportImproved energy resolutionRefractive indexLaser-processed crystalsCollection efficiencyLight transportPixel-like patternScintillation lightMPPC arraysEnergy resolutionPixel arrayDOI informationPulsed laser beamLight response functionLine profilesCe crystalsMonolithic crystalsBarrier patternsCrystal bulkTime resolutionCE detector
2016
Novel 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