Angular uncertainties due to geometry and spatial resolution in Compton cameras

Angular uncertainties due to geometry and spatial resolution in Compton cameras

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 e...

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Veröffentlicht in:IEEE Transactions on Nuclear Science 1999-08, Vol.46 (4), p.1142-1147
Hauptverfasser: Ordonez, C.E., Wei Chang, Bolozdynya, A.
Format: Artikel
Sprache:eng
Schlagworte:
ACCURACY
Cameras
DATA COVARIANCES
Detectors
Estimating
GAMMA CAMERAS
Gamma ray detection
Gamma ray detectors
Gamma rays
Genetic expression
Geometry
INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS
Localization
Orientation
Position (location)
Position measurement
SCATTERING
SPATIAL RESOLUTION
Uncertainty
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Beschreibung
Zusammenfassung: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.
ISSN:0018-9499
1558-1578
DOI:10.1109/23.790848