Airborne Radiometrics Acquisition


Data Acquisition & Instrumentation

Our acquisition instrumentation is the AGRS System. The AGRS System consists of four independently-processed detectors for a total of 16.8 liters of downward –looking NaI crystals. The 512 channel processors provide high-resolution and excellent signal to noise ratios throughout the gamma ray spectrum.  We offer airborne radiometric surveys utilizing both helicopters and fixed-wing aircraft. Pico Envirotec’s Advanced Geophysical Information System enables our operators to monitor individual detector performance in real time. The 512-channel resolution of the AGRS along with the use of Geosoft Praga 4 processing software allows for removal of radon effects through  214 Pb photopeaks  and eliminates the need for an upward-looking crystal.

Radiometrics real-time monitoring

Primary Processing

Raw data is low resolution and shows banding effects due to daily differences in temperature, humidity, radon, and soil moisture. Our primary processing methods include removal of radon and cosmic background, correcting for temperature and humidity, and normalizing to Thorium. Our Advanced Processing techniques include isolating the Potassium, Uranium, and Thorium (KUTh) channels from the Total Count spectrum. The result is a much higher-resolution image than the standard Total Count Map. This data is then used to generate individual Potassium, Uranium and Thorium Concentrations.

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