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Model PGIS-2 -Portable Gamma-Ray Spectrometer
The instrument is designed for portable and mobile spectrometry surveys in a variety of environments. The PGIS-2 is based on advanced microprocessor and mobile technologies, consists of a detector unit, integrated with GPS, and a data logger unit (PEICore) based on state-of-the-art portable devices, such as a smart-phone, a tablet or a notebook. The PGIS-2 embedded AGRS advanced gamma-ray spectrometer is widely used in geological and geophysical exploration and mapping, as well as in environmental and nuclear surveillance.
Individual and independent detector processing provides real time gain and linearity correction. The AGRS is fully automated and self-stabilizing on natural radioactive elements. This eliminates the requirement for regular and time consuming system checks and recalibration and assures accurate and reliable gamma-ray measurements.
When operating in real time (collecting data) the gain, linearity and offset of detector is mathematically corrected for each measurement.
The system is auto calibrated by natural photo peaks.
The detector can be equipped with a NaI(Tl) crystal of various volumes ranging from 0.347 liter up to 4 liters.
The user interface and data acquisition system is based on the Android OS (DAQ, PEICore) .
Acquired data is automatically synchronized with GPS time and location, spectrum can be displayed in real-time in a waterfall/counts per second mode. Data channels: ROI windows, cps; K, U, Th concentrations/activities, dose rate etc. can be displayed in the chart view. Real time ground navigation allows the operator to follow a survey grid or way-points on a displayed map that can be prepared as a calibrated image (using PEIConvert) or automatically loaded from the internet (using Open Street Maps)