Overview
Enviro Testers’s vehicle radiation portal monitoring system for drive through is designed to provide automatic, real time, and online detection of radioactive materials in vehicles or trains passing through monitoring channels. The system uses high sensitivity gamma ray detectors to identify traces of radioactive materials, automatically trigger over limit radiation alarms, store detection data, and support networked operation with higher level management platforms for remote monitoring across vehicle and container inspection points.
Features
- Flexible configuration solution for vehicle radiation monitoring
- Ingress Protection: IP65
- Capable of recognizing naturally occurring radioactive material (NORM)
Technical Specifications
| Detection Configuration | Configuration 1: Two or four sets of plastic scintillators with double low noise photomultipliers, each scintillator with a sensitive volume of approximately 1,831 cubic inches (30 L), with 0.12 to 0.31 in (3 to 8 mm) lead shielding on five sides.
Configuration 2: Four or eight sets of NaI (Tl) scintillators with low noise photomultipliers, each scintillator with a sensitive volume of approximately 122 cubic inches (2 L), with 0.12 to 0.39 in (3 to 10 mm) lead shielding on five sides |
| Detection of γ and X rays | Energy range: 50 keV to 3 MeV |
| Sensitivity | Under 0.2 μSv/h background, an added 0.1 μSv/h triggers an alarm within 1 s |
| Detection Probability | ≥ 99.9% (confidence coefficient: 95%) |
| False Alarm Rate | ≤ 0.1% |
| Coverage of Detection | Height: 0.33 ft to 14.76 ft (0.1 m to 4.5 m)
Width: up to 16.4 ft (5 m) |
| Signal Processing Unit | 32-bit embedded ARM9 processor with on-site system status and information query |
| Standard Passing Speed | 4.35 mph to 9.32 mph (7 km/h to 15 km/h) |
| Alarm | Sound and light alarms with differentiation between radiation alarm and over speed alarm, adjustable thresholds, and remote management connectivity |
| Operating Temperature | -22°F to 122°F (-30°C to +50°C) |
| Weight | Approximately 331 lb to 441 lb (150 kg to 200 kg) per detector |
