AT6104DM, AT6104DM1 Spectrometers

Multifunction immersion spectrometers to monitor radiation levels in fresh and sea water, as well as in bottom sediments. Measurement at depths up to 500 m without prior sampling and sample preparation.


  • Monitoring radioactive contamination of water and bed deposits at depths up to 500 meters with data GPS-mapping
  • Monitoring of industrial radioactivity in water bodies: seas, rivers, lakes, ponds and wells
  • Radioecological monitoring of water bodies in Atomic Power Station and waste repository areas
  • Operational monitoring of radioactive hazardous objects hoisting


Spectrometer unit in a temperature-and-shock-resistant watertight container from stainless steel detects gamma-radiation of monitored radionuclides.

Spectrometric data from detecting unit is sent via special cable to a PC and is displayed on its screen.

Instrumental spectra processing algorithms in PC Software are used for displaying of radioisotope composition data or certain radionuclide volume activity. Ambient gamma radiation dose equivalent rate value in inspection point is determined by instrument spectrum analysis with “spectrum-dose” operational function.




  • Measurebility of radiation parameters for objects at depths over 500 metres
  • Smart probe in sealed container
  • Measurement results can be viewed as index maps of monitored radionuclide concentration allocation or gamma-radiation dose rate
  • Instant detection of near background dose rate level increase
  • Built-in gyro transmitter
  • Bundled spool with current feedthrough for cable
  • Automatic LED stabilisation and measurement path temperature compensation
  • Setting up procedure and parameter check using check sample that contains KCl salt with naturally occurring radionuclide 40K
  • Expert mode for detailed instrument spectrum analysis with automatic sample radionuclide content identification
  • Records and stores in non-volatile memory up to 140,000 measured instrument spectra with subsequent reading option
  • Measurement data can be transmitted to PC for further detailed processing in dedicated software "GARM"


"AT6104DM" Software, main operation modes


  • Detection device
  • Portable computer
  • Dedicated cable on a spool
  • Acoustic sounder
  • Software, etc.
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