ADAMOS Gamma Waste Drum Monitor

Automated Drum Monitoring System

ADAMOS is an automated segmented gamma scanner system, designed to scan and characterise drums filled with radioactive waste. Thanks to the full modularity architecture of the system, its layout can be defined selecting each component from the available options, to meet specific requirements.


ADAMOS stations are composed by the following main components:

  • Mechanical structure: rugged steel structure composed of modular conveyors sections, a measurement chamber and a switchboard
  • Detection equipment: moving and collimated detectors, either HPGe, large plastic or NaI(Tl) scintillators
  • Management software: user-friendly operator interface

All versions of ADAMOS share the following features:

Scanning procedure

The drum is moved by the conveyor to the measuring chamber, equipped with a rotating platform, while the detectors are moved to different heights to scan the total drum volume in sub-sections.

The system also features an automatic centring function, a horizontally movable detector frame and a set of collimators; the correct measurement setup is automatically selected and applied by the software based on the measurement type and the radioactivity level.

PLC and PC

All the actuations and safety devices of the system are locally managed by a PLC. The operator interacts with the PLC through the touch-screen panel installed on the switchboard, and manages the system work cycle through a PC. The software manages the workflow, sending commands to the PLC, which then performs the related macro operations. The system status is constantly monitored in order to detect failures or anomalous conditions.

Safety devices

ADAMOS system implements the “safety by design” principle to prevent any harm to operators and to the mechanical parts of the system. Typically, ADAMOS stations are equipped with perimeter protections and interlocks to prevent harm to the operator when the work cycle is running, and several emergency switches activated by potentially dangerous conditions (collision sensors, proximity sensors, emergency buttons, etc.).

Additional information

Main features:

Standard worldwide system for precise waste characterization
Versatile measurement geometry
Sub-sections scanning procedure to allow characterization of non-homogeneous matrices
Detector: HPGe, plastic scintillators, NaI(Tl)
Automatic drum centring and weighting
Drum size: up to 500 l and 2500 kg with a density up to 2 g/cm3
Local and remote operator interfaces
Software for specific activity measurement
Hot spot detection