Backscatters

Get ready for electronic portals known as backscatters, expected to be tested at a handful of airports this year, that use X-ray imaging technology to allow a screener to scan a body. ❋ Unknown (2005)

Reader reaction to the backscatters has ranged from ❋ Unknown (2010)

To me, the obvious question is: Given that the two types of machines are both deemed effective by the T.S.A., why doesn't the agency just abandon backscatters and use the millimeter wave machines, which don't pose radiation issues? ❋ Unknown (2010)

But for now, the agency is committed to the backscatters and millimeter wave machines. ❋ Unknown (2010)

This reflective tape then backscatters the laser energy to a receiver that converts it to a jitter-free signal, suitable for a measurement or recording system. ❋ Unknown (2010)

Alamos National Laboratory in New Mexico has shown that terahertz photons (high-frequency energy particles that can pass through clothing and body tissue) emitted by backscatters can unzip double-stranded DNA, creating bubbles in the double strand that could significantly interfere with its replication. ❋ Unknown (2010)

"The West has worked out an interim code for security check where only suspicious fliers are asked to go through backscatters. ❋ Unknown (2010)

But over a long period, the radiation from backscatters for those who travel regularly can go up significantly, "he says. ❋ Unknown (2010)