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                                         AIRBORNE GAMMA RAY SPECTROMETER AGRS

  1. Functions: Multichannel gamma spectrometer designed on aircraft (helicopters or fix-wings) to measure gamma spectrum for geological investigation and mineral exploration.
  2. Manufactured by: Pico envirotec – canada
  3. Year of production: 2016
  4. Webiste:

– Channels: 256 / 512/1024 or 2048

– Energy detection  range: 20 keV to 3 MeV

– Data handling: Individual detector  processing and calibration

– Differential nonlinearity: 30ppm

– Gain stabilization: Automatic multi-peak on natural radioisotopes

– Dynamic input range: 250000 cps per detector

– Baseline restoration: Digital (IPBR) Individual Pulse Baseline Restoration. The baseline  is established for each individual pulse for maximum pulse height accuracy

– Pulse shaping: Digital Pulse Shaping

– Sampling rate: 0.1 – 10 sec user defined

– Power: 9 to 40 VDC, 15W

– Detector power: 3W per detector

– Operating temperature: -20°C up to +50°C

– Calibration:  Automatic using natural background radiation.

– Expandability/Scalability: Up to 20 sensor (4 AGRS units) chained

– System stabilization: Cold start-up  – less than 40 sec on the ground

– Verification/Calibration: No radioactive sources required

– GPS connectivity: Time and position synchronization

– Detectors:

Four 4 Liter downward-looking, NaI(Tl) crystals

Two 4 Liter upward-looking,NaI(Tl) crystals

Weight ~115kg

  1. Some project used this equipment by Geophysical Division.

 Component project “Magnetic – gamma spectrum and gravity airborne survey  in the Northwest region” under the Project “General investigation of minerals and completing geological maps at scale 1:50,000 in the Northwest region for planning and sustainable development socio-economic”.

                                                                                                                                          Source: Geophysical Division./.


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