SGR represents a handheld, ruggedized and simply operated instrument for field and industrial use. This unit is equipped with an acoustic output (pitch response). These features are completed with water tightness and resistance against mechanical shocks. The unit is supplied from standard, exchangeable, single use or rechargeable C cells.


SGR covers two basic ranges of measurements:

  • quick and selective searching for radioactive sources with fast response, acoustic signalization and histogram of 64 measured values
  • radiometric measurements (dose rate) with the support of point and continuous measurements


The dose rate measurement is based on evaluation of pulses collected in the energy ranges from 50 keV or 400 keV to 3000 keV according to recommendation of IAEA (International Atomic Energy Agency).




Manufactured by Geotomographie GmbH

Technical Details

Generated wave types: SV
Signal frequencies: Up to 500 Hz (depending on geology and borehole distance)
Operational depth: Up to 100 m
Source length: 1015 mm
Source weight: 6 kg
Cable weight per metre: 377 g
Borehole diameter: 75-100 mm (or larger if spacers are used)
Clamping system: Infatable bladder
Depth indicator: Cable marking every 2 m
Connector: To impulse generator IPG800 or IPG5000
Storage: On drum
Switch box: Switch between two vertical shot directions

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