Handheld terahertz wand to unmask terrorists 09:30 12 July 04 Exclusive from New Scientist The next generation of security screening systems will be based on so-called terahertz technology that can see weapons and explosives hidden under people's clothes. But using terahertz radiation to produce X-ray-like images of passengers is likely to be unacceptable for routine use, as it will allow security staff to see the people they are scanning as if they were naked. The answer, according to a company called TeraView in Cambridge, UK, is to use the terahertz radiation in a different way. Instead of producing images, it...
