Modular high spatial resolution scintigraphic device with multiple independent photomultipliers and with extensible visualisation area

Abstract

A scintigraphic device, comprising a collimator, a scintillation crystal structure, a plurality of photomultipliers, electronic circuits for the determination of the position co-ordinates (XY) and energy of the event and their amplification for their subsequent transfer to an electronic processor, wherein photomultipliers ( ) are positioned mutually adjacent, each provided with its own independent electronic circuits ( ), and a circuit ( ) for interrogating the respective synchronism signals drawn from the respective electronic circuits ( ) determines the signal indicating the photomultiplier ( ) that detected the event and enables only a corresponding analogue switch ( ) to transfer the signals carrying the position co-ordinates of the event from the enabled electronic components ( ) to an analog to digital converter (A/D).