Double-Sided Gamma Portal Monitor

Two-sided gamma screening, small-site friendly

The PoliGate™ Light G2 is a double-sided, gamma-only radiation portal monitor for Australian ports, borders, scrap and waste sites, and critical infrastructure. Two 8.8 L plastic scintillator pillars with lead shielding deliver high-sensitivity vehicle and pedestrian screening without forcing traffic to stop.

Modular hardware (frame or wall mounting, optional video, flexible lane widths) and an Ethernet-connected operator “companion app” on PC support an end-to-end workflow from commissioning and tuning through to alarm review, evidence capture, and long-term reporting.

Why Teams Choose PoliGate™ Light G2?

• Full-lane coverage: Two opposing 8.8 L scintillator blocks and control zones up to 6 m × 2 m at 8 km/h give wide-lane screening without complex civil works.
• High sensitivity, low false alarms: Lead shielding, tuned algorithms, and <1/1000 false-alarm rate at background <0.1 µSv/h support security without clogging the lane.
• Keep traffic moving: Rated for drive-through and walk-through operation with no stop required at 5–8 km/h, ideal for busy gates and portals.
• Robust for outdoor sites: IP55 enclosures, −30 to 50 °C operating range, and up to 98 % RH at 40 °C suit Australian climates from coastal ports to inland yards.
• Power resilience: Wide-range AC supply plus >8 h internal 12 V backup battery keeps monitoring online through local power issues and changeovers.

What’s in the Kit?

Two PoliGate™ Light G2 gamma detection blocks, electronics/control cabinet with integrated 12 V backup battery, local light and sound alarm hardware, occupancy sensors, mounting frame/fixtures (or wall-mount kit, project-dependent), mains power connection hardware, Ethernet interface, operator software licence, installation guide, and user manual.

Engage our RPM specialists to engineer a PoliGate™ Light G2 layout matched to your lane geometry, traffic profile, and radiation standards.

PoliGate™ Light G2 Key Specs

Type: Double-sided, gamma-only radiation portal monitor (RPM).

Detectors: Organic plastic scintillators, 8.8 L per block, with integrated lead shielding.

Radiation: Gamma only, 20 keV – 3 MeV.

Control zones:

3 m (W) × 2 m (H) at 5 km/h

Up to 6 m (W) × 2 m (H) at 8 km/h

Typical MDAs (5 km/h, 3 m × 2 m):

²⁴¹Am ~820 kBq; ¹³⁷Cs ~140 kBq; ⁶⁰Co ~70 kBq; ¹³³Ba ~36 kBq; ²³⁸U ~810 g; ²³⁵U ~48 g; ²³⁹Pu ~1.7 g.

Typical MDAs (8 km/h, 6 m × 2 m):

²⁴¹Am ~3000 kBq; ¹³⁷Cs ~430 kBq; ⁶⁰Co ~220 kBq; ²³⁸U ~2530 g; ²³⁹Pu ~5.4 g.

False alarm rate: <1/1000 passages (background <0.1 µSv/h). ● Power: 90–260 V AC, 50/60 Hz (wide-range); internal 12 V rechargeable battery (>8 h backup).

Comms: Ethernet to operator PC / control room.

Environmental: IP55; −30 to 50 °C; 88–106.7 kPa; up to 98 % RH at 40 °C.

Dimensions (per block): ~1074 × 324 × 127 mm (H × L × W).

Weight (per block): ~66 kg.

Frequently Asked Questions

What radiation does PoliGate™ Light G2 detect?

G2 is a gamma-only RPM. It detects elevated gamma levels from industrial, medical, and nuclear materials; neutron-sensitive portals are available in other Polimaster families.

How rugged is PoliGate™ Light G2 for yards and ports?

Each pillar is IP55-rated, operates from −30 to 50 °C, and tolerates up to 98 % humidity. The design and lead shielding support continuous duty in exposed, dusty, and wet industrial environments.

What serves as the “companion app” for operators?

A Windows®-based operator workstation connects over Ethernet to the G2 cabinet. The software provides real-time count-rate and alarm displays, event logging and integration options, and can be paired with site video systems for visual confirmation.

What exactly comes with the system?

A standard G2 delivery includes two detector pillars, the electronics cabinet with backup battery, local light/sound alarms, occupancy sensors, power and network hardware, and operator software. Mounting frames and video integration are configured per project.

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