Mobile Spectroscopic Radiation Portal Monitor

A movable portal monitor for vehicles, vessels, aircraft or fixed entry points. Uses a large‑volume NaI(Tl) spectrometer with neutron capability to detect and identify sources at speed. Web‑based control, mapping/history, and full reach back streamline operations. Housing can be camouflaged to blend with the surroundings.

Why teams choose it

• Low false alarms: continuous spectroscopic analysis with automatic energy stabilisation; neutron channel rejects gamma cross‑sensitivity.
• Flexible power & comms: AC, vehicle DC, or battery; Ethernet/Wi‑Fi/optional 4G; built‑in GPS.
• Operator‑friendly UI with nuclide ID, spectrogram, dose, database, ANSI N42.42 export.

How it works

A high‑volume NaI(Tl) detector (≈ 102 × 102 × 406 mm crystal) acquires spectra while the system stabilises gain in real time; a neutron channel monitors 5–8 MeV gamma region for neutron interactions. Alarms/IDs and track logs are available on the web UI and for reach back.

Key specifications

• Size / mass: ≈ 998 × 247 × 247 mm, ≈ 40 kg
• Energy range / resolution: 30 keV–8 MeV; < 8 % @ 662 keV Spectrum: 2048 channels; > 250 kcps
• Power: 100–250 VAC, 9–36 V DC, or 12 V/20 Ah battery (optional 33 Ah)
• Comms: Ethernet, Wi‑Fi, optional 4G; built‑in GPS
• Ruggedness: IP65; –20 °C to +50 °C; ≤ 95 % RH (non‑cond.)
• Nuclide lists: designed to fulfil/exceed ANSI N42.34 (Medical/Industrial/SNM/NORM + user lists/ROIs).

Typical applications

Airport/rail security, customs and border control, event venues, industrial gates, orphan‑source location and covert monitoring.

FAQs

Can I run it covertly?

Yes, custom housings let the portal blend into its environment.

Remote operation?

Yes, web‑based control and reach back to experts.