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. Luke´´s Med. Centre, Chicago, IL, USA
Abstract :
The authors investigate the effects of spatial resolution and relative orientation of detectors on the accuracy of the directional localization in two-detector Compton cameras. They 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, the authors 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; cameras; image resolution; modelling; radioisotope imaging; angular uncertainties due to geometry; detectors relative orientation; directional localization accuracy; medical diagnostic imaging; medical instrumentation; nuclear medicine; position uncertainty; spatial resolution; two-detector Compton cameras; Cameras; Electromagnetic wave absorption; Gamma ray detection; Gamma ray detectors; Gamma rays; Geometry; Position measurement; Scattering; Spatial resolution; Uncertainty;
Conference_Titel :
Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-5021-9
DOI :
10.1109/NSSMIC.1998.773836
