Portable gamma camera, comprising: a containment body; - a measuring structure comprising a scintillation structure housed inside the containment body and designed to receive radiation; - a collimator made of a material with a high atomic number, associated with the measuring structure for absorbing a lateral radiation directed towards the measuring structure and having an angle of incidence greater than a predetermined value; - a display, positioned on the containment body; - an electronic controller unit, operating between the measuring structure and the display for generating on the display images representing the radiation intercepted by the measuring structure; characterised in that the electronic controller unit comprises: - at least one optoelectronic converter; - an electronic system designed for reading, amplifying and integrating output signals from the at least one optoelectronic converters; - a resistive network connected to the electronic system and able to determine the load barycentre and the energy associated with the radiation which strikes the scintillation structure; - a system for analogue/digital conversion and sampling of the signals using PIC devices equipped with ADC/DAC, the conversion and sampling system being designed to receive from the resistive network a signal identifying the load barycentre and the energy associated with the radiation which strikes the scintillation structure and being designed to integrate the signal for determining the amplitude and generating a respective output signal; - a PIC or ARM type microcontroller system, connected to the conversion and sampling system for receiving the output signal and converting it into an image which can be displayed on the display; wherein the electronic system, the resistive network, the analogue/digital conversion system and the microcontroller system are positioned sequentially between the optoelectronic converter and the display. a containment body; - a measuring structure comprising a scintillation structure housed inside the containment body and designed to receive radiation; - a collimator made of a material with a high atomic number, associated with the measuring structure for absorbing a lateral radiation directed towards the measuring structure and having an angle of incidence greater than a predetermined value; - a display, positioned on the containment body; - an electronic controller unit, operating between the measuring structure and the display for generating on the display images representing the radiation intercepted by the measuring structure; characterised in that the electronic controller unit comprises: - at least one optoelectronic converter; - an electronic system designed for reading, amplifying and integrating output signals from the at least one optoelectronic converters; - a resistive network connected to the electronic system and able to determine the load barycentre and the energy associated with the radiation which strikes the scintillation structure; - a system for analogue/digital conversion and sampling of the signals using PIC devices equipped with ADC/DAC, the conversion and sampling system being designed to receive from the resistive network a signal identifying the load barycentre and the energy associated with the radiation which strikes the scintillation structure and being designed to integrate the signal for determining the amplitude and generating a respective output signal; - a PIC or ARM type microcontroller system, connected to the conversion and sampling system for receiving the output signal and converting it into an image which can be displayed on the display; - a measuring structure comprising a scintillation structure housed inside the containment body and designed to receive radiation; - a collimator made of a material with a high atomic number, associated with the measuring structure for absorbing a lateral radiation directed towards the measuring structure and having an angle of incidence greater than a predetermined value; - a display, positioned on the containment body; - an electronic controller unit, operating between the measuring structure and the display for generating on the display images representing the radiation intercepted by the measuring structure; - at least one optoelectronic converter; - an electronic system designed for reading, amplifying and integrating output signals from the at least one optoelectronic converters; - a resistive network connected to the electronic system and able to determine the load barycentre and the energy associated with the radiation which strikes the scintillation structure; - a system for analogue/digital conversion and sampling of the signals using PIC devices equipped with ADC/DAC, the conversion and sampling system being designed to receive from the resistive network a signal identifying the load barycentre and the energy associated with the radiation which strikes the scintillation structure and being designed to integrate the signal for determining the amplitude and generating a respective output signal; - a PIC or ARM type microcontroller system, connected to the conversion and sampling system for receiving the output signal and converting it into an image which can be displayed on the display;