Georadis GT-30
Field Gamma Ray Spectrometer
A field gamma-ray spectrometer for rapid determination of potassium, uranium and thorium concentrations.
The detection and measurement of ionizing radiation mainly intended for geology, but can be used in many other fields. Typical use of the GT-30 includes; Searching for contaminated materials and radiation anomalies in the field, Determination of the K, U, Th content in the field and measurements of drill cores.
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Key Features
● Easy to use, single button control.
● Digital LCD display
● Robust design (IP65)
● Light weight (2.0 to 2.4 kg)
● Low power consumption
● Powered by 4 x AA batteries
● Fast response, high sensitivity
● Acoustic signalization of the measured frequency
● Adjustable threshold acoustic signal
● Internal memory for data storage
● Automatic gain setup
● Audible indication of changes in frequency of recorded gamma particles provided by speaker located behind the rear cover of the unit/via USB headphones. -
Technical Specifications
• Detector: NaI(Tl) 2×2″ or BGO 2×2″, 103 ccm FWHM max. 7 % (BGO max. 11 %).
• Sensitiity: 160 cps (BGO 210) / MBq Cs137 / m 75 cps (BGO 75) / MBq Am241 / m, 270 cps (BGO 400) / MBq Co60 / m
Gamma energy range: 30 3 000 keV.
• Number of analyzator channels: 1024
• Display: graphic 128 x 64 dots, 28 x 60 mm automatic backlight.
• Accoustic indication: 20 x per second, automatically set background level, freqency variation according to the radiation intensity.
• PC connection: USB, Bluetooth.
• Data evaluation: pulses per second (cps); % K, ppm U and Th, Gy/h of natural radionuclides.
• Data recording: internal memory or PC.
• Data memory: up to 288 hours of samples or 14,000 analyzes of K, U, Th or 1768 spectra, respectively their combination according to the memory allocation.
• Power supply: 4 x AA, typically 8 hours of operation.
• Dimensions: 260 x 81 x 96 mm.
• Weight: 2.0 kg including batteries (GT32: 2.4 kg).
• Operating Temperature Range: 10 to 50 º C.
