Wala`au Dude

Walaau Dude aka HawaiiBoy

I ask Why? A lot!

  I'm a Former Chef, among other stuff, an #Arsenal FC fan, live in Kona, Hawaii and I play with technology all day.

 

 

 

Jason Bell on the TSA’s Claims Regarding the Safety of Backscatter Body Scanners

read -->Jason Bell on the TSA’s Claims Regarding the Safety of Backscatter Body Scanners

Molecular biologist Jason Bell:

According to the TSA safety documents, AIT uses an 50 keV source that emits a broad spectra (see adjacent graph from here). Essentially, this means that the X-ray source used in the Rapiscan system is the same as those used for mammograms and some dental X-rays, and uses BOTH ‘soft’ and ‘hard’ X-rays. Its very disturbing that the TSA has been misleading on this point. Here is the real catch: the softer the X-ray, the more its absorbed by the body, and the higher the biologically relevant dose! This means, that this radiation is potentially worse than an a higher energy medical chest X-ray.

(Via Ben Brooks.)


Daring Fireball by John Gruber November 28, 2010 1:27 PM

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