Patent ID: 8354651

Claim:
An imaging system comprising: an external radiation source, wherein said external radiation source comprises a positron emitter, said external radiation source producing pairs of substantially simultaneous radiation emissions, each pair of substantially simultaneous radiation emissions comprising a picturization emission and a verification emission emitted at an emission angle; a plurality of picturization sensors capable of detecting said picturization emissions; at least one verification sensor capable of detecting said verification emissions; an object stage, wherein said object stage is arranged such that a picturization emission can pass through an object supported on said object stage before being detected by one of said plurality of picturization sensors; and a coincidence system in communication with said plurality of picturization sensors and said at least one verification sensor, said coincidence system classifying each detected picturization emission that is part of a pair of radiation emissions detected within a predefined time window, as direct radiation if the pair of radiation emissions have a coincident relationship that meets a predefined condition, and as scattered radiation otherwise.