One-Sided Pedestrian Gamma Portal

Walk-through screening, fixed-site assurance

The PoliGate™ Pedestrian G1 is a one-sided gamma radiation portal monitor for Australian government sites, nuclear facilities, research centres, transport hubs, and high-risk industrial plants. A single 11 L plastic scintillator detector, lead shielding, and smart occupancy sensing provide continuous walk-through screening of people, bags, and small packages at up to 5 km/h.

Paired with an Ethernet-connected operator workstation as your “companion app”, G1 supports an end-to-end workflow from installation and tuning through to alarm review, export, and long-term audit.

Why Teams Choose PoliGate™ Pedestrian G1?

• Compact lane coverage: One-sided pillar supports 1.0 × 2.0 m or 1.5 × 2.0 m walk-through openings at 5 km/h, ideal for doors and corridors.
• High sensitivity, low clutter: 11 L PVT detector with lead shielding and tuned thresholds keeps MDAs in the tens of kBq range while holding false alarms below 1 in 1,000 passages.
• Keep people moving: No-stop design at walking speed reduces bottlenecks at staff entrances, crew lanes, and controlled facilities.
• Rugged for real sites: IP65 enclosure, −30 to 50 °C operating range, and up to 98 % RH at 40 °C suit both indoor lobbies and exposed external entries.
• Power resilience & central control: Wide-range AC input, >8 h internal 12 V battery, and Ethernet-linked software align with existing control-room and security workflows.

What’s in the Kit?

PoliGate™ Pedestrian G1 detection pillar, electronics/control cabinet with integrated 12 V backup battery, local light and sound alarms, occupancy sensors, mains power cabling, Ethernet interface, operator workstation software licence, installation hardware, and user documentation.

Schedule a PoliGate™ Pedestrian G1 design review with our RPM specialists and map the system against your entry points, threat model, and standards.

PoliGate™ Pedestrian G1 Key Specs

• Type: One-sided pedestrian gamma radiation portal monitor.
• Detector: Plastic scintillator (PVT), ~11 L gamma detector with lead shielding.
• Radiation: Gamma; energy range 20 keV – 3 MeV.
• Control zones & speed:
  • 1.0 m (W) × 2.0 m (H) at 5 km/h
  • 1.5 m (W) × 2.0 m (H) at 5 km/h
• Typical MDAs (5 km/h, 1.0 × 2.0 m, background <0.1 µSv/h):
  • ²⁴¹Am ~400 kBq; ¹³⁷Cs ~80 kBq; ²³⁸U ~470 g; ²³⁵U ~30 g; ²³⁹Pu ~0.8 g.
• Typical MDAs (5 km/h, 1.5 × 2.0 m):
  • ²⁴¹Am ~700 kBq; ¹³⁷Cs ~130 kBq; ²³⁸U ~815 g; ²³⁵U ~50 g; ²³⁹Pu ~1.4 g.
• Gamma sensitivity: ≈241 cps per nSv/h (²⁴¹Am); 57 cps per nSv/h (¹³⁷Cs); 27 cps per nSv/h (⁶⁰Co).
• False alarm rate: <1/1000 passages (under stated conditions).
• Power: 85–264 V AC, 47–63 Hz; internal 12 V rechargeable battery providing >8 h backup.
• Comms: Ethernet from control cabinet to operator PC / site network.
• Environmental: IP65; −30 to 50 °C; 84–106.7 kPa; up to 98 % RH at 40 °C (non-condensing).
• Dimensions/weight: Approx. 2090 × 465 × 250 mm (H × L × W); ~120–125 kg.

Frequently Asked Questions

What radiation does PoliGate™ Pedestrian G1 detect?

G1 is specified as a gamma RPM. It detects increased gamma fields from industrial, medical, and nuclear materials. Neutron-performance requirements are typically met by GN-series pedestrian models.

How rugged is the G1 for entrances exposed to weather or dust?

The pillar is IP65-rated and designed for −30 to 50 °C operation with high humidity tolerance, so it can be installed at sheltered outdoor gates, plant entries, and high-traffic industrial doors.

What’s the “companion app” for operators?

PoliGate™ Pedestrian G1 connects over Ethernet to a Windows®-based operator workstation. The software shows live count-rate and alarm status, logs events, and supports exporting data for investigations and reporting.

What exactly is included when we order G1?

A typical system includes the detection pillar, control cabinet with backup battery, local audible/visual alarms, occupancy sensors, power and network hardware, and the operator software licence. Mounting details and any video integration are sized to your site.

Compliance note: Specifications, MDAs, and standards references are based on manufacturer documentation and may change without notice. Agencies remain responsible for confirming local regulatory acceptance, site licensing, and export-control obligations before procurement, installation, or cross-border transfer.