The FREE-AND 16 spectrometric station is a robust and handy system designed to perform spectrometric analysis of waste materials, where the fine spectroscopy provided by HPGe-based systems is not needed.

The FREE-AND 16 main components are:

  • 16 NaI(Tl) 3”x3” scintillator detectors coupled to MCAs
  • Lead shielding for each detector, which also defines the scintillator field of view (collimation)
  • Mechanical support structure for detectors
  • Weighting platform
  • Control PC with user-friendly software

The detectors are distributed in two arrays of 4 units for each side. Each detector is provided with a lead shielding, which acts as a collimator: this way each scintillator “sees” a defined portion of the container volume. The system can achieve an MDA of 0.04 Bq/g (15 minutes measurement, 300 kg of material, 1 g/cm3 density).

The mechanical support structure is made of stainless steel, which can well resist to the weight of the equipment and to accidental bumps.

The weighting platform has a maximum payload of 6000 kg. Containers of different type and dimensions can be placed on the platform, up to a maximum of 100x100x200 cm (WxHxD).

The operator interacts with FREE-AND 16 through a sophisticated yet easy-to-use software. To perform the measurement, the operator selects the proper geometry from a previously defined database, then sets the measurement time; the procedure automatically starts when the container is placed upon the weighting platform. Measurement reports are provided at the end of each scan.

Additional Info

  • Main features:
    • Efficient alternative to HPGe-based systems
    • Versatile structure
    • Sub-sections mesurements to allow characterization of big containers
    • Robust mechanical structure with weighting platform
    • Detectors: 16 NaI(Tl) scintillators 3”x3” with MCA
    • Lead shielding/collimator for each detector
    • Max container dimensions: 100x100x200 cm
    • Geometries database and release limits calculation
    • Data archive and measurement reports
    • MDA (Cs-137): down to 0.04 Bq/g (15 min)