This is an automated segmented gamma scanning system, designed to characterise drums filled with radioactive waste. The system layout can be defined from the available options to meet specific requirements. ADAMOS stations are composed of: - Mechanical structure: rugged steel frame with roll-gang conveyors Detection equipment: - moving and collimated detectors, typically HPGe Management software: - user-friendly operator interface. During the automatic scanning procedure, the drum is moved to a rotating platform in the measuring chamber, to be centred and weighted. Then the detectors are vertically moved to intercept and scan the pre-set sub-sections of the total drum volume: a collimator set defines the detector field of view. The suitable measurement setup is automatically selected and applied by the software according the radioactivity level.