Smiths Detection's IONSCAN 500DT (pictured) and Multi-Mode Threat Detectors (MMTD) are being used to check hand luggage for traces of explosives immediately before passengers board flights heading to the United States. The detectors, one desktop and the other hand-held, provide particle and vapor analysis by using Ion Mobility Spectrometry (IMS) technology, detecting both explosives and narcotics from a single sample. Rugged design and portability enable the systems to be moved easily to different boarding areas.