Wednesday, September 11, 2013

Simple compact laser system could detect presence of explosives

Simple compact laser system could detect presence of explosives: A simple, compact system could bring laser technology to the task of bomb detection at security checkpoints, researchers at Michigan State University say.
University scientists report they've developed a laser that can detect micro traces of explosive chemicals on clothing and luggage.
"Since this method uses a single beam and requires no bulky spectrometers, it is quite practical and could scan many people and their belongings quickly," MSU chemistry Professor Marcos Dantus said. "Not only does it detect the explosive material, but it also provides an image of the chemical's exact location, even if it's merely a minute trace on a zipper."
The low-energy laser is safe to use on luggage as well as passengers, he said, and is not affected by the color or surface of clothes or luggage.