The WAM measuring system is intended for the measurement and the determination of activities, activity concentrations, total activities and total activity concentrations of the selected radionuclides which emit gamma radiation in a range from 100 to 1500 keV. Total activities are the sum of activities of individual radionuclides; and total activity concentrations are the sum of all activity concentrations of individual radionuclides. Solids and the subjects with an average density up to 2500 kg/m3 located in the standard drums with a volume of about 0.2 m3 are measured.
| Parameter | Value |
|---|---|
| Power supply | 220 V +22/-33 V, 50 Hz., 2 kW, Maximum power interruption up to 20 ms. TN-S power supply system |
| Communication interface | X2X, CAN, RS-485 |
| Protection from external influence | IP 54 |
| Material density | up to 2500 kg/m3 |
| Material volume | up to 0.2 m3 |
| Material weight | up to 700 kg (Maximum drum weight) |
| Drum measured | Type I – average of 600 mm, height of 860 mm, wall thickness from 1.4 to 1.5 mm Type II - average of 598 mm, height of 805 mm, wall thickness of 4 mm |
| Dimensions | LxBxH 2500x700x2200 |
| Weight | 1700 kg |
| Detector | |
| Detector | semiconductor HPGe, efficiency of 30% * |
| Energy range | 100 to 1500 keV (resolution >2 keV at 1332 keV) |
| Measuring range | from minimum detectable activity of 3.7 kBq (for background of 300 nSv/hr, for 60Co in 0.2 m3 drum with an average material density of 300 kg/m3 and measuring time of 30 min.) up to: 1 GBq |
| Radionuclides measured | Cs-134, Cs-137, Co-60, Mn-54, Fe-59, Nb-95, Zn-65, Zr-95, Co-58, Cr-51, Ce-144, Hf-181 and Ru-103 ** |
| Measurement precision | ± 20 % (for the uniform activity distribution and the density in the volume measured) maximum 50 % for the material density of 1000 kg/m3 in the drum |
| * Other Detection Unit efficiency can be used. | |
| ** Nuclide list can be changed accordingly. |
