2019
First 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
2003
The Effects of Compensation for Scatter, Lead X-Rays, and High-Energy Contamination on Tumor Detectability and Activity Estimation in Ga-67 Imaging
Fakhri G, Kijewski M, Maksud P, Moore S. The Effects of Compensation for Scatter, Lead X-Rays, and High-Energy Contamination on Tumor Detectability and Activity Estimation in Ga-67 Imaging. IEEE Transactions On Nuclear Science 2003, 50: 439. DOI: 10.1109/tns.2003.812446.Peer-Reviewed Original ResearchLead X-raysHigh-energy contaminationPresence of scatteringOptimal energy windowSignal-to-noise ratioAnthropomorphic torso phantomHigh-energy photonsMonte Carlo programGa-67 imagingSpherical tumorCompton scatteringPhoton interactionsEnergy windowScattered photonsEnergy photonsPhotopeak windowTorso phantomActivity estimationHigh energyFactors affecting image qualityX-rayScatter correctionPhotopeakGa-67Photons