Abstract: Scintillation camera inlcuding a scintillator crystal, a light guide, a set of p photodetectors, p acquisition channels (60), and a computer (100) intended to deliver the coordinates x.sub.j and y.sub.j of a scintillation j and the energy E.sub.j which is associated with this event j. This camera is characterized in that there is provided, between the output of the p acquisition channels and the input of the computer, a transfer control stage (200) including: (a) p subtractors (180) receiving on a first input the corresponding output of the p acquisition channels (60) and on a second common input a so-called slaved threshold evaluated by a threshold computer (170), (b) an additional acquisition channel (160) supplying to the threshold computer the digital energy signal E.sub.mj, (c) at the output of the additional acquisition channel and of the p substractors, (p+1) transfer control circuit (190), the (p+1).sup.

Abstract: A scintillation camera, comprises the structure of a scintillation crystal (10), a collimator (20), a light guide (30), an array (50) of p photodetectors, p acquisition channels (60), and a processor (100) for supplying the coordinates x.sub.j and y.sub.j of a scintillation j and its associated energy E.sub.j, and further comprises structure characterized in that:(A) the p acquisition channels apply p digital signals to the input of the processor;(B) the processor (100) itself comprises:(a) a bus for transferring the p digital signals;(b) a digital summing stage (200);(c) a scintillation processing stage; and(C) a detection, sequencing and storage stage (400) which receives a signal which corresponds to the sum of the p output signals of the photodetectors, is provided in order to supply the various clock signals and the correction coefficients for the scintillation processing stage.