A gamma vector camera detects and determines the energy and the direction
of an incident gamma ray. The gamma vector camera includes a detector
that produces scintillation light upon interaction with the incident
gamma ray. A sensor records the locations and the intensities of the
scintillation light produced in the detector. A processor determines the
energy and the direction of the incident gamma ray based on the locations
and the intensities of the scintillation light recorded by the sensor.