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

Volume

46

Issue

4

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

1142

Lastpage

1147

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.790848

Filename

790848