Possibilities of Liquid Explosives Countermeasures at Airports

摘要

In this article the possibilities of liquid explosives revelation during routine checking of person and baggage are discussed. Both the containers filled with liquid explosives and assembled IEDs can be detected easily. There are a few possibilities to distinguish the kind of liquid by common x-ray system at checkpoints. Apart from some particle detectors the explosive and flammable liquids can also be sniffed out by dogs. The more stringent regulations relating to liquids in the cabin baggage and people profiling is just another possibility. There is a requirement for more reliable detection methods based on dielectric and spectral measurements (glass and plastic containers), thermal characteristics (metal containers) and smaller and cheaper devices based on neutron activation of gamma radiation (especially metalized plastic or metalized paper).