Border Radiation Monitor

Maqsad: Border radiation monitors vehicles/people/cargo ko radioactive sources (gamma ± neutron) ke liye passive scan karte hain taake illicit radiological material pakda ja sake.

Types: Fixed portal monitors (lanes/gates), portable/ deployable portals, aur vehicle‑/covert‑mounted mobile detectors — har ek ka role entry‑screening ya drive‑by scanning hota hai.

Sensing tech: Gamma detectors (PVT, NaI(Tl), HPGe) aur neutron counters (He‑3 alternatives, Li‑6, 4He) ka mix istemal hota hai for sensitivity + isotope ID.

Data & forensics: Modern systems include data‑logging, GPS/time stamps and spectral ID so events can be mapped, exported to GIS and analysed later.

False alarms & NORM: Naturally Occurring Radioactive Materials (NORM) in cargo often trigger nuisance alarms — spectroscopic discrimination and smart algorithms reduce false positives.

Procurement & sustainment: Check sensitivity/specs, calibration schedule, maintenance/support, integration with C2/CBRN workflows and local regulations before buying.