British company ThruVision has developed a new camera, the T5000, that can detect weapons, drugs or explosives hidden under people's clothes from up to 25 meters away in what could be a breakthrough for the security industry. The camera uses "passive imaging technology" to identify objects by the natural electromagnetic rays -- known as Terahertz or T-rays -- that they emit. The technology works on the basis that all people and objects emit low levels of electromagnetic radiation. Terahertz rays lie somewhere between infrared and microwaves on the electromagnetic spectrum and travel through clouds and walls.
The high-powered camera can detect hidden objects from up to 80 feet away and is effective even when people are moving. It does not reveal physical body details and the screening is harmless, the company says. "Acts of terrorism have shaken the world in recent years and security precautions have been tightened globally," said Clive Beattie, the chief executive of ThruVision. "The ability to see both metallic and non-metallic items on people out to 25 meters is certainly a key capability that will enhance any comprehensive security system."
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