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4 papers
Surface Direct Conversion of 511 keV Gamma Rays in Large-Area Laminated Multichannel-Plate Electron Multipliers
Kepler Domurat-Sousa, Cameron Poe, Henry J. Frisch +3
We have used the TOPAS simulation framework to model the direct conversion of 511 keV gamma rays to electrons in a micro-channel plate (MCP) constructed from thin laminae of a heav…
Low-Dose TOF-PET Based on Surface Electron Production in Dielectric Laminar MCPs
Kepler Domurat-Sousa, Cameron Poe, Henry J. Frisch +3
We present simulations of whole-body low-dose time-of-flight positron emission tomography (TOF-PET) based on the direct surface production [1] by 511 keV gamma rays of energetic el…
Methods for Simulating TOF-PET in TOPAS Using a Low-Z Medium
Kepler Domurat-Sousa, Cameron Poe
We have used the TOPAS Geant4-based package to create a parametric simulation of a new TOF-PET scanner design based on a low atomic number scintillator. TOPAS was extended to provi…
Simulation of a Compton-based detector for low-dose high-resolution time-of-flight positron emission tomography
Kepler Domurat-Sousa, Cameron M. Poe, Maya S. McDaniel +7
Two major challenges in time-of-flight positron emission tomography (TOF-PET) are low spatial resolution and high radioactive dose to the patient, both of which result from limitat…