What is the primary function of Radiation Portal Monitors?

The primary function of Radiation Portal Monitors is to detect illicit sources through passive radiation detection. These monitors are designed to identify radioactive materials that may be hidden among cargo, passengers, or vehicles as they pass through specified checkpoints. By utilizing sensitive detection equipment, these monitors can passively sense radiation without requiring active interrogation of the source, allowing them to effectively identify potential threats.

Radiation Portal Monitors play a crucial role in security protocols, especially in ports and borders, helping to prevent unauthorized transport of nuclear or radiological materials. Their ability to detect radiation passively is what differentiates them from active scanning devices, leading to timely alerts when a potential threat is encountered.

Understanding this function is vital for ensuring safety and security in areas susceptible to smuggling or other illicit activities involving radioactive materials.