Screening for security: millimeter-wave scanner identifies non-metallic weapons

Aug 30, 2005

If you're looking for concealed weapons these days, you need more than x-ray machines and metal detectors. You want something that also will identify non-metallic weapons, or any other threatening object that may be concealed under clothing.

Researchers at Pacific Northwest National Laboratory have developed an innovative screening technology that uses harmless, ultrahigh-frequency radio waves to penetrate clothing and can quickly identify plastic explosives and other types of weapons.

The active millimeter-wave technology rapidly scans people and sends reflected signals into a high-speed image processing computer which produces a high-resolution 3-D image.

The scanning technology is rapid, produce an image in less than three seconds. It can be used in a variety of public areas, such as airports, court houses, federal buildings, prisons, embassies, schools, sporting events, mass transit systems and nuclear sites to minimize delays and the indignity of physical searches that are often necessary to resolve ambiguous alarms.

Explore further: Modeling the ripples of health care information

add to favorites email to friend print save as pdf

Related Stories

India turns to nuclear as energy crisis deepens

Sep 28, 2014

India's new prime minister is turning to nuclear energy to ease a power crisis made worse by the cancellation of hundreds of coal mining permits, but he faces scepticism both at home and abroad.

Recommended for you

ENIAC panels go on display at Oklahoma museum

1 hour ago

We keep up with history of events through the calendar, marking special days: Amelia Earhart's birthday, the collapse of the Berlin Wall; the assassination of JFK. Another path is through narrative. An eye-catcher ...

BlackBerry courts iPhone users with cash

12 hours ago

Canadian smartphone maker BlackBerry is wooing Apple customers with a cash offer for trade-ins of iPhones for its new square-screened, keyboard-equipped Passport.

HP earnings show continued struggle

13 hours ago

Venerable tech giant Hewlett-Packard has been struggling for three years to turn its business around. Its latest earnings show it still has more work ahead.

UN moves to strengthen digital privacy (Update)

13 hours ago

The United Nations on Tuesday adopted a resolution on protecting digital privacy that for the first time urged governments to offer redress to citizens targeted by mass surveillance.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.