Effect of the time characteristics of the Compton camera on its performance

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dc.contributor.authorUche, Chibueze Zimuzo
dc.contributor.authorRound, W. Howell
dc.contributor.authorCree, Michael J.
dc.date.accessioned2011-10-04T20:45:15Z
dc.date.available2011-10-04T20:45:15Z
dc.date.issued2011
dc.description.abstractPurpose: The effect of the time characteristics of the Compton camera data acquisition (DAQ) system on the camera’s performance has been studied. Methods: The GEANT4 simulation software was used to simulate radiation transport and interactions with matter. Further investigations were carried out by utilizing straightforward approximations to estimate the charge collection times and their relationship to finding coincident events, setting thresholds to reject noise, and the resultant impacts on the Compton camera performance. Results: The results show that the time characteristics of the Compton camera DAQ account for about 17% and 13% reduction in detection efficiency at 140.5 keV and 511 keV, respectively, but made no significant difference on the Compton camera resolution. Conclusions: Findings suggest that the detection efficiency of the Compton camera has been overestimated by previous investigators who did not predict count rate losses under clinical conditions.en_NZ
dc.format.mimetypeapplication/pdf
dc.identifier.citationUche, C.Z., Round, W.H. & Cree, M.J. (2011). Effect of the time characteristics of the Compton camera on its performance. Paper presented at the Engineering and Physical Sciences in Medicine and the Australian Biomedical Engineering Conference, Darwin, Australia, August 14-18, 2011.en_NZ
dc.identifier.doi10.1007/s13246-011-0098-9en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5802
dc.language.isoen
dc.publisherSpringeren_NZ
dc.relation.isPartOfAustralasian Physical and Engineering Sciences in Medicineen_NZ
dc.relation.urihttp://www.epsmabec2011.org/abstract/112.aspen_NZ
dc.rights© 2011 The Authorsen_NZ
dc.titleEffect of the time characteristics of the Compton camera on its performanceen_NZ
dc.typeConference Contributionen_NZ
pubs.begin-page27en_NZ
pubs.elements-id36552
pubs.end-page27en_NZ
pubs.issue4en_NZ
pubs.volume34en_NZ
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