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Wide range gamma probe for dose rate and dose measurement.
PoliProbe G1 smart probe is equipped with an energy-compensated Geiger-Mueller tube for extended measurement of the ambient dose equivalent and ambient dose equivalent rate.
The probe is designed for integration with external processing units to either add radiation monitoring capabilities to third-party systems or extend the detection range of built-in gamma detectors. Probe readings can be monitored in real time via an external processing through RS-485 connection or a PC through USB.
Features
- Compliance with essential requirements of IEC 60846-1:2009
- Ambient dose equivalent rate up to 10 Sv/h
- Ambient dose equivalent up to 10 Sv
- Operating temperature from –20 °С to 50 °С
- Audible and visual alarms
- USB communication with PC
Applications
- Third‑party system integration
- HAZMAT and CBRNe teams
- Steel and recycling industry
- Waste management sites
- Counter-terrorism teams
- Homeland security
- Area monitoring
- First responders
- Special forces
Operation principle
PoliProbe® G1 Smart Probe continuously measures the ambient dose equivalent rate and accumulated dose using its built‑in energy‑compensated Geiger‑Mueller counter. The instrument’s microcontroller processes the incoming signals, applies advanced statistical algorithms for stable results, and rapidly adapts to changes in radiation intensity. Audible and visual alarms are activated when preset dose or dose‑rate thresholds are exceeded, ensuring timely notification to the user.
The probe does not contain an internal power source and operates only when connected to an external power supply. Data and control signals are exchanged via USB (connection to a PC with PoliProbe G1 Monitor User Software) or RS‑485 (connection to Polimaster’s PoliPack BRD or other external processing units).
The robust IP65‑rated enclosure and wide operating temperature range ensure reliable performance in harsh environmental conditions, making PoliProbe G1 suitable for both fixed and portable monitoring systems in civil defense, industrial safety, and scientific applications.
Detector | Geiger-Mueller tube |
Dose rate measurement range | 1 µSv/h to 10 Sv/h |
Dose rate linearity | -15 % to +22 % |
Accuracy (Ref. 137Cs) | ±6 % at 300 µSv/h |
Dose measurement range | 10 µSv to 10 Sv |
Variation of relative response of dose | -15 % to +22 % |
Variation of relative response of dose due to dose rate variation | -13 % to +18 % |
Accuracy (Ref. 137Cs) | ±6 % at 300 µSv |
Energy range | 30 keV to 3 MeV (protective cap must be removed for measurements <48 keV) |
Combined energy and angular response (Ref. 137Cs) | −29 % to +67 % (48 keV to 1.25 MeV; 0° to ±45°) |
Alarms | visual (LED) and audible |
Communication | USB, RS-485 |
Power supply | 3.6 – 16 VDC |
Ingress protection | IP65 |
Dimensions | 162 mm × ø 40 mm |
Weight | 110 g |
Operating temperature | –20 °С to 65 °С |
Atmospheric pressure | 70 to 106.7 kPa |
Humidity | up to 95 % at 35 °С |
