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Positron emission tomography (PET) is a medical imaging technique for non-invasive detection of glucose metabolism in human organs, such as the brain, heart, and lungs. A positron-emitting molecule, generally Fluorodeoxyglucose-18 (18F-FDG), is injected and subsequently identified by coincident detection of two gamma photons released during the annihilation of an electron with the positron lost by...
A complete simulation environment, designed to aid the SPADnet network design and to perform scalability studies, is presented in this work. Two simulators, namely a coincidence network simulator and a data transfer simulator, designed to simulate two network channels, were optimized for speed and memory. Furthermore, these simulators were coupled with GATE in order to emulate a real PET system network...
Tomographic Gamma Scanners are tools for nondestructive assay and characterization of nuclear waste drums. In these scanners, a three dimensional image of the activity distribution of every radioisotope stored in the drum is obtained by performing a single-photon emission tomography. AR-TGS is a novel architecture of tomographic gamma scanners that combines an HPGe detector with six NaI(Tl) detectors...
This paper proposes an energy estimation technique utilizing only timing information from a Multi-channel Digital a SiPM (MD-SiPM) and presents a statistical analysis of the proposed approach for TOF PET applications with a LYSO scintillator. By utilizing only timing information for estimating energy of gamma photons, circuitry in the MD-SiPM is minimized so as to increase fill-factor and the dead...
Tomographic Gamma Scanners are novels tools for nondestructive assay and characterization of nuclear waste drums. In these scanners, a three dimensional image of the activity distribution of every radioisotope stored in the drum is obtained performing a single-photon emission tomography. AR-TGS is a novel architecture of tomographic gamma scanners that combines an HPGe detector with six NaI(Tl) detectors...
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