Waste Assay Monitor HERCULES

DESCRIPTION

The WAM measuring facility 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.

Description

Application

The WAM measuring facility is intended for the measurement and the determination of nuclear waste 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 materials with an average density up to 2500 kg/m3 located in the standard drums with a volume of about 0.2 m3 are measured.

Features

The WAM (Waste Assay Monitor) is a complex measuring system which is intended for the monitoring of radioactive waste in standard 200-litre drums. WAM involves the following systems:

  • Monitor – a fixed segmented gamma-spectrometric monitor for the determination of activities of selected radionuclides in the individual drum segments with vertical motion and collimator
  • Transfer system is used for moving the measuring part from/to the drum measured
  • Dose rate monitor, direction-dependent, measures the dose rate of the segment in the defined distance from the drum
  • Dose rate monitor measures the background dose rate
  • Rotary table, control and power supply switchboards

COMPLETE SET

  • Waste assay monitor
  • Spare parts set
  • Tool kit for maintenance and calibration
  • Assembly instructions
  • Operating instructions
  • WAS Control Application

SPECIFICATION

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.