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 amplitudeVoltage
2019
Performance evaluation of the 5‐Ring GE Discovery MI PET/CT system using the national electrical manufacturers association NU 2‐2012 Standard
Pan T, Einstein S, Kappadath S, Grogg K, Gomez C, Alessio A, Hunter W, Fakhri G, Kinahan P, Mawlawi O. Performance evaluation of the 5‐Ring GE Discovery MI PET/CT system using the national electrical manufacturers association NU 2‐2012 Standard. Medical Physics 2019, 46: 3025-3033. PMID: 31069816, PMCID: PMC7251507, DOI: 10.1002/mp.13576.Peer-Reviewed Original ResearchConceptsAxial field-of-viewPeak noise-equivalent count rateNoise-equivalent count rateField of viewCount ratePET performanceNational Electrical Manufacturers Association NU-2Transaxial field of viewPET/CT systemTime resolutionMean energy resolutionConventional photomultiplier tubesCount rate performanceImage quality phantomSpatial resolution measurementsFiltered back projection algorithmImage qualityEnergy resolutionAcquisition timeNU 2Count lossDetector designPhotomultiplier tubeMean energyPET/MR systemsFirst results developing time-of-flight proton radiography for proton therapy applications
Worstell W, Adams B, Aviles M, Bond J, Cascio E, Cremer T, Fakhri G, Ertley C, Foley M, Grogg K, Hamel C, Lu H, Lyashenko A, Minot M, Paganetti H, Popecki M, Stochaj M. First results developing time-of-flight proton radiography for proton therapy applications. Progress In Biomedical Optics And Imaging 2019, 10948: 109480g-109480g-9. DOI: 10.1117/12.2511804.Peer-Reviewed Original ResearchSub-relativisticMicro-channel plate photomultiplier tubeTime-of-flight telescopeTime resolutionProton therapy applicationsProton therapy treatmentsProton Therapy CenterResidual energy measurementProton beam testsBeam testMillimeter-scale spatial resolutionProton bunchesMonoenergetic protonsPlastic scintillatorPhoton detectorsProton radiographyImaging detectorMCP-PMTPhotomultiplier tubeBunch structureWaveform digitizerIndividual protonsMicrochannel plateHigh energyPhotodetection mode
2013
State of the Art in Cardiac Hybrid Technology: PET/MR
Nappi C, El Fakhri G. State of the Art in Cardiac Hybrid Technology: PET/MR. Current Cardiovascular Imaging Reports 2013, 6: 338-345. PMID: 24073295, PMCID: PMC3780420, DOI: 10.1007/s12410-013-9213-5.Peer-Reviewed Original ResearchMagnetic resonance imagingPositron emission tomographyAbsence of ionizing radiationPositron emission tomography systemLimitations of PET/MRISensitivity of positron emission tomographyRespiratory motionPhotomultiplier tubeClinical cardiac applicationsSoft tissue contrastPET-CTDetection chainPositron emission tomography dataCardiac morphologyCardiac PET/MRIClinical promisePET/MRIEmission tomographySimultaneous PET/MRIImaging modalitiesPET imagingResonance imagingClinical settingDynamic PET imagesTissue contrast