AURAS 3000


AURAS 3000 is a highly automated system for measuring a variety of sample sizes and forms (bags, boxes, drums, and B25 containers), with densities in the range 100 kg/m3 to 2000 kg/m3.

The system is equipped with up to four electro-cooled HPGe detectors. 

The container is first positioned by crane or forklift onto the heavy-duty scanning platform. The operator starts the scan through the user interface, and select the container type to be scanned from a set table. This results in an adjustment of the detector position under computer control as required by the counting geometry. Bookkeeping data such as container description is entered at this stage.

The scan starts and the heavy-duty conveyor moves the container through the measurement area at the centre of the HPGe detectors, stopping to acquire counts from predetermined sub-sections of the containers. 

At the end of the measurement process, the system provides the following results:

  • Spectra from each detector/position combination, saved and analysed individually using the ORTEC ISOTOPIC waste assay software
  • Activity value of the container calculated by each detector (individual)
  • Activity value of the container calculated by all detectors (average)
  • “Hot spots” identification and analysis
  • Individual (of each detector) and averaged MDA values

Detection limits as low as 0.0037 Bq/g (137Cs) are generally achievable in a 40-minute count for low density materials. 

Additional Info

  • Main features:
    • Free Release Assay of large waste containers up to 3 m3
    • On-line weighting to 3000 kg (1 kg resolution)
    • Full Quantitative Assay of all detectable gamma emitters, with non-gamma emitter estimates by correlated scaling factors
    • Up to four large area HPGe detectors
    • Individual and averaged activity and MDA reporting
    • Automated computer control
    • Extensive Safety Protection
    • MDA (137Cs): down to 0.0037 Bq/g (40 min)