Portable Gamma-Ray Spectrometer

Portable Gamma-Ray Spectrometer, the GS-512i is a 512-channel gamma-ray spectrometer. Specifically for field use within the mining sector for mineral exploration projects, aiding in the location of potential ore deposits. Utilising gamma spectrometry, the instrument works by measuring the concentrations of naturally occurring isotopes. K,  U, Th, and total activities in uranium equivalent concentration [ppm Ueq]. Further, the spectrometer also allows you to setup, up to four ROI’s (Region Of Interest). This further allows you to measure pulse counts in user-defined channels or energy ranges. Additionally, it has a built-in FLASH memory for storing up to 7,500 complete spectra and is equipped with a pile-up rejector for the detection of double peaks. Which enables a higher quality of the measuring spectrum at high pulse rates and performs spectrum stabilization.

In addition, a built-in wireless Bluetooth technology enables communication with an external device using such as a computer or a GPS. Further, it can also be remotely controlled in this way using the ‘SgDataGS’ PC application. As standard, the GS-512i comes with the GSP-3 probe containing a 3-inch NaI(Tl) scintillation crystal.

The Portable Gamma-Ray Spectrometer is ideal for site use. The instrument is portable and robust, held within a watertight fitting, and comes in a shockproof carry case. Using six LR6 AA batteries with a charger for its power source. However, it can connect to an external power supply allowing use from mobile, laboratory, and stationary installations.

Specifications:

• Amplifier: Semi-gaussian pulse shaping, 1 μs time constant with pole-zero cancellation, DC restoration, digitally controlled gain +/- 25 %
• Analogue/digital converter (ADC): Successive Approximation ADC, 16Bit, 1.33MSPS, conversion time 0.8 μs
• Channel width: 5 mV, input voltage range: 50 mV to 2.5 V
• Differential non-linearity: max. 1 % in the range 50 mV to 2.5 V
• Integral non-linearity: max. 0.3 % in the range 50 mV to 2.5 V
• Zero drift: 2 mV/10 °C
• Maximum input count rate: 50 000 counts per second with a peak displacement, due to zero shift, inferior to 1 %
• Channel Analyser: The 512 channels, max. (232 – 1) counts per channel live time mode of collection set in the range 5 s to 23:59:59
• Digital Spectrum Stabiliser: Range of reference peak setting is 40 – 500 channels, the control range is ± 25 %, stabilization sensitivity 0.5 %
• Internal data memory: Memory for up to 7500 complete spectra
• Interface: USB 2.0 or Bluetooth for data transfer and remote control, Bluetooth can be used to connect to Bluetooth GPS
• Keyboard: 20 push-buttons membrane-type, dust resistant, water-tight, weather-proof
• Display: Graphical LCD 240 x 128 dots
• Audio indication: 1 kHz buzzer
• Internal supply power: 6 alkaline battery LR6 AA 1.5 V or 6 accumulators type HiMH 1.2 V
• External supply power: 8 – 15 V/400 mA
• Dimensions: 228 x 83 x 110 mm
• Probe dimension: ø 120 x 410 mm
• Weight: 1.5 kg with batteries