Double-sided gamma-neutron model equipped with two gamma (6.6L each) and two neutron detectors.
The PoliGate™ Pedestrian GN2 is a double-sided gamma-neutron Radiation Portal Monitor (RPM) equipped with two 6.6L-gamma and one neutron detector and is a high-sensitive fixed system designed for permanent installation and monitoring of people or packages for the presence of radioactive materials.
The PoliGate™ Pedestrian series is an essential component of any facility that requires strict security measures, including government buildings, research facilities, and nuclear power plants. The compact and ergonomic design of the RPM makes it a convenient solution for use in various applications for screening people, luggage, and cargo.
Features
- IEC 62244:2019 compliance
- Control zone up to 1.5 x 2 (W x H)
- Wide gamma energy range from 20 keV to 3 MeV
- No stop of an object is required for the inspection
- Lead shielding for natural background rejection
- Ingress protection IP65
- Local and remote light and audible alarm annunciators
- Back-up battery providing at least 8 hours of operation
- Presence detection system (occupancy sensors)
- Adjustable sensitivity parameters for specific applications
- Optional video surveillance system
Applications
- Customs and border control
- Waste management sites
- Airports and seaports
- Public events security
- Nuclear power plants
- Police and security
- Industrial facilities
- Scrap processing
- Railway stations
Operation Principle
The PoliGate™ Pedestrian series may have one-pillar or two-pillar configurations depending on the site requirements and can be installed both indoors and outdoors.
This series of RPMs comply with the IEC 62244:2019 standard.
Equipped with highly sensitive scintillation detectors, the RPM can continuously detect and measure ionizing radiation in real-time. This means that as soon as radiation is present, the device swiftly captures and analyzes the data, providing immediate feedback.
The RPM is easy to operate and maintain, requires minimal training, and is supplied with user-friendly software that provides real-time data and alarms.
The connection to an operator computer or compatible external devices allows to effortlessly transmit the recorded radiation measurements for further analysis and monitoring. The real-time measurements are displayed in an easily readable format, ensuring a quick and accurate assessment of the radiation environment. This data transfer capability ensures that all measurements are logged and stored for comprehensive record-keeping and future reference.
The Pedestrian GN RPM models are equipped with a neutron channel based on a 3He free detector. Gamma and neutron detectors are both located in the same cabinet.
| Type of registered radiation | gamma, neutron |
| Detector | gamma: organic plastic scintillator (6600 cm3) neutron: 10B/ZnS(Ag) solid-state detector (3He-free) |
| Number of detection units | 2 gamma detector 2 neutron detector |
| Energy range | 20 keV to 3 MeV |
| Gamma radiation sensitivity | 145 cps per nSv/h (241Am) 35 cps per nSv/h (137Cs) 16 cps per nSv/h (60Co) |
| Neutron radiation sensitivity | 3700 n/s (252Cf) |
| Power | 85-264 V AC, 47-63 Hz; |
| Battery lifetime | 8 hours (backup power supply) |
| Alarms | visual, audible |
| PC communication | Ethernet (cable up to 100 m) |
| Ingress protection | IP65 |
| Weight | 130 kg (one gamma-neutron detector) 265 kg (total) |
| Operating temperature | −30 °C to 50 °C |
| Atmospheric pressure | 84 to 106.7 kPa |
| Humidity | up to 98 % at 40 °C, no moisture |
| Mean recovery time | 60 min |
| Mean service lifetime | 8 years |
| Mean time between failures | 10000 hours |
