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 The GRS-10 and GRS-16 systems are intelligent, self calibrating Gamma Ray spectrometers using NaI (Tl) large volume detector arrays. They are used for natural and man made radiation contamination detection. Simple serial (RS-232) communications protocol allows them to be connected to any PC compatible computer system. All dedicated electronics modules are housed within the detector container. By virtue of application software any personal computer may be transformed into a sophisticated Gamma spectrum analyzer.
The GRS-10 or GRS-16 series of gamma spectrometers are widely used in geological and geophysical exploration and mapping as well as in environmental and nuclear surveillance.
Individual, independent, detector processing provides real time gain and linearity correction. PEI's ongoing research to improve the system stabilization algorithms make these spectrometer systems fully automated and self stabilizing on natural radioactive elements. This eliminates the requirement for regular, time consuming, and frequent system checking and re-calibration by the user. Furthermore it provides excellent accuracy and reliability of the gamma measurements.
Specially developed software algorithms provide results in absolute units of contamination and dosage automatically corrected from acquisition altitude to ground level equivalents. Individual crystal detector signal processing provides an accurate control over each contributing sensor providing the user with the best possible spectra alignment for the complete system. New design techniques for the peak detection electronics almost completely eliminate 'pulse pile up' and 'Dead Time' effects.
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exhibits very low noise characteristics and excellent linearity. The technology is based on a high speed sampling analog to digital converter transmitting collected measured values into a large logic array circuit.
