Title :
A preliminary evaluation of a positron camera system using weighted decoding of individual crystals
Author :
Holte, S. ; Eriksson, L. ; Larsson, J.E. ; Ericson, T. ; Stjernberg, H. ; Hansen, P. ; Bohm, Chr ; Kesselberg, M. ; Rota, E. ; Herzog, H. ; Feinendegen, L.
Author_Institution :
Dept. of Neuroradiol. & Clinical Neurophysiol., Karolinska Hospital/Inst., Stockholm, Sweden
Abstract :
The whole-body positron camera PC4096-15WB is based on a detection unit with 16 scintillating crystals mounted on two dual photomultiplier tubes. The design ideas are specified and a system description is given. Preliminary test results including spatial resolution, sensitivity to true and random coincidences, scatter correction, and count-rate linearity are presented.<>
Keywords :
biomedical equipment; computerised tomography; radioisotope scanning and imaging; coincidences; count-rate linearity; dual photomultiplier tubes; individual crystals; positron camera system; scatter correction; scintillating crystals; sensitivity; spatial resolution; weighted decoding; whole-body positron camera PC4096-15WB; Cameras; Crystals; Decoding; Detectors; Hardware; Magnetic shielding; Photomultipliers; Positrons; Scattering; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
