Title :
Angular uncertainties due to geometry and spatial resolution in Compton cameras
Author :
Ordonez, Caesar E. ; Chang, Wei ; Bolozdynya, Alexander
Author_Institution :
Rush-Presbyterian St. Lukes Med. Center, Chicago, IL, USA
fDate :
8/1/1999 12:00:00 AM
Abstract :
In this paper, we investigate the effects of spatial resolution and relative orientation of detectors on the accuracy of the directional localization in two-detector Compton cameras. We derive a general expression that relates the angular uncertainty to spatial resolution and geometry. Appropriate expressions for specific configurations are obtained as special cases of the general expression. Finally, we present a simple formula for estimating the position uncertainty of Compton cameras in terms of relative spatial resolution and distances
Keywords :
Compton effect; biomedical equipment; radioisotope imaging; semiconductor counters; solid scintillation detectors; Compton cone axis; absorption detector component; angular uncertainty; detector geometry effect; directional localization accuracy; mismatched resolution; position uncertainty; relative orientation of detectors; spatial resolution; two-detector Compton cameras; Cameras; Gamma ray detection; Gamma ray detectors; Gamma rays; Genetic expression; Geometry; Position measurement; Scattering; Spatial resolution; Uncertainty;
Journal_Title :
Nuclear Science, IEEE Transactions on
