The GCS-SPEC-4GN drive-through radiation portal monitor is trusted worldwide to detect and identify radioactive nuclides. Its modular design allows GCS-SPEC-4GN to be configured with one or more radiation portal monitors to support high throughput security at border crossings, seaports, critical infrastructure, and high threat facilities.

FEATURES

  • Gamma and neutron sensitivity for superior detection

  • Spectroscopic detection provides exceptional nuclide identification

  • NORM discrimination minimizes nuisance alarms to less than 1%

  • Source location

  • Fully digital system design

  • Automatic system sensitivity monitoring

Physical Specifications

  • Operating Configuration: Drive-through monitor for vehicles, trucks, and cargo
  • Pillars: Left and right; 2 per side, stacked
  • Number of Gamma Detectors: 16 detectors; 8 per pillar
  • Gamma Detector Material: NaI(Tl) sodium iodide
  • Number of Neutron Detectors: 12 detectors; 3 per pillar
  • Neutron Detector Material: LiZnS-PMMA
  • Pillar External Dimensions: 80 in L x 40 in W x 17 in D (203 cm L x 102 cm W x 43 cm D)
  • Pillar Weight: 900 lbs (410 kg)

Performance Specifications

  • Gamma Radiation Detection: Meets ANSI N42.38
  • Special Nuclear Materials (SNM) Detection: Meets ANSI N42.38
  • Gamma False Alarm Rate: Less than 1 in 10,000 passages
  • Neutron False Alarm Rate: Less than 1 in 10,000 passages

Operation

  • Inspection Speed: 5 mph (8 km/h)
  • Ports: Ethernet, RS485, Serial

Environment / Safety

  • Temperature: -4 °F to 140 °F (-20 °C to 60 °C )
  • Humidity: 5 to 95% non-condensing
  • Environmental Protection: IP65