Available Models and Technologies
Entry Scan, developed by General Electric, and Ionscan Sentinel II, developed by Smiths Detection, use ion mobility spectrometry (IMS) technology and can detect explosives such as RDX, PETN, TNT, and Nitroglycerin. It can also detect controlled substances such as cocaine, heroin, PCP, methamphetamine, and Ecstasy.
The Guardian, developed by Syagen Technology with preconcentration technology licensed from Sandia National Laboratories, is physically similar but internally different. The Guardian uses mass spectrometry (MS) technology, which can detect 16 explosive compounds with 10-100x more sensitivity than IMS, resolve multiple compounds at the same time, and perform shoe bomb detection without removing shoes. The collection technology licensed from Sandia Laboratories is also significantly different than those used in Entry Scan and the Sentinel II. Syagen offers a narcotics screening portal as a separate product.
Read more about this topic: Explosives Trace-detection Portal Machine
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