The device, which is expected to begin trials some time in the next 18 months, was recently unveiled by the International Air Transport Association. The idea is to give passengers the chance to speed through security, cutting down on the amount of time spent partially disrobing and then recombobulating.
The travelers would enter the fastest tunnel, which would only use x-ray, metal and liquid detectors.
The second group, "normal travelers," would get a shoe scan and pass through an explosive trace detector.
The final group, those who raise some sort of red flag with security, will be funneled off to go through the full-body scanner.
Model scanners have been installed at Singapore airport and within few years, such scanners will be installed at all major airports.
Your skin breast tissues get the brunt of the low energy back-scatter X-rays shielding the internal organs making the "effective" dose appear so small. Back-scatter dose to skin, testicle, breast about 1/20 to 1/50 of a chest x-ray, "total recall" transmission x-ray dose about 1/2 to 4 chest x-rays.
ReplyDeletehttp://www.rockyflatsgear.com/Airport-Back-scatter-Scanner-Dose-Explained.html
http://www.rockyflatsgear.com/How-penetrating-are-airport-back-scatter-x-rays.html
http://www.rockyflatsgear.com/County-Jails-Deploy-Airport-Whole-Body-Scanners.html