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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Physical Security Technologies at Hitachi
verfasst von : Minoru Sakairi
Erschienen in: Computational Forensics
Verlag: Springer Berlin Heidelberg
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Physical security has become one of the most important issues worldwide due to the spreading global use of explosives and illicit drugs. Under this social background, we started developing real-time monitoring technologies based on mass spectrometry for physical security applications. In these technologies, a sample gas is continuously introduced into an ion source and analyzed by a mass spectrometer. We can detect various kinds of organic compounds by analyzing the mass number of observed ions. This technology has been applied to monitor polychlorinated biphenyls and to detect explosives, illicit drugs and chemical weapons. In addition, we developed a small mass spectrometer that can detect human breath. This simple method is useful for preventing drunk driving by installing its device just behind a steering wheel.