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Analysis of variations in contrast-detail experiments.
Three sources of variability in a contrast-detail (CD) experiment have been quantitated: within-observer variance, between-observer variance, and sample variance. It is concluded that (1) it is moreExpand
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Validation of GATE Monte Carlo simulations of the GE Advance/Discovery LS PET scanners.
The recently developed GATE (GEANT4 application for tomographic emission) Monte Carlo package, designed to simulate positron emission tomography (PET) and single photon emission computed tomographyExpand
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Sensitivity Improvement of Time-of-Flight (ToF) PET Detector Through Recovery of Compton Scattered Annihilation Photons
In PET detector designs, the scintillator material can be partitioned such that a block of crystals share timing/energy readout electronics. A fraction of the incident 511 keV photons produceExpand
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Sensitivity improvement of time-of-flight (ToF)-PET detector through recovery of Compton scattered annihilation photons
In PET detector designs, the scintillator material can be partitioned such that a block of crystals share timing/energy readout electronics. A fraction of the incident 511 keY photons produceExpand
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Time-of-flight PET-MR detector development with silicon photomultiplier
Silicon photomultiplier technology based on Geigermode avalanche in p-n junction has made unforeseen progress for the last 5-6 years. With its high gain and high photon detection efficiency, it hasExpand
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Relative dose efficiencies of antiscatter grids and air gaps in pediatric radiography.
The relative dose efficiencies (RDE) of various antiscatter grids and air gaps were determined for conditions simulating those found in pediatric radiography, using phantoms representing a newbornExpand
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Dose efficiency of screen-film systems used in pediatric radiography.
Twenty-one screen-film systems were examined using contrast-detail-dose methods in order to determine which were most dose-efficient for use in pediatric radiography. With a given screen, doseExpand
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Dead-time correction for an orbiting rod normalization in a cylindrical PET system
Orbiting rod source coincidence acquisitions may exhibit a significant amount of dead-time, depending on the system geometry and the rod source activity. This dead-time is a function of the relativeExpand
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Design of a Data Acquisition System to reduce count rate losses in a PET scanner
TLDR
Dual Integration provides a significant improvement to the count rate capability of a PET Detector, at the cost of a very small increase in the number events which have misassigned crystal ID’s. Expand
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