1.
IEEE Trans Med Imaging
; 23(4): 525-9, 2004 Apr.
Article
in English
| MEDLINE
| ID: mdl-15084078
ABSTRACT
It is argued that positron annihilation into three photons, although quite rare, could still be used as a new imaging modality of positron emission tomography. The information gained when the three decay photons are detected is significantly higher than in the case of 511 keV two-gamma annihilation. The performance of three-gamma imaging in terms of the required detector properties, spatial resolution and counting rates is discussed. A simple proof-of-principle experiment confirms the feasibility of the new imaging method.