Originally Posted by
kmersh
The Chief of Radiology at the Hospital where I work and with whom I have talked to a few times about the Body Scanners has said the only info he can point to is 1 article printed in the Journal of the American College of Radiology which said that based on the DATA (provided to them, not DATA that they collected themselves) on the Backscatter Technology (which I understand is no longer in use), it would take 1,000 scans before a human received the same dose of radiation as 1 chest x-ray.
Total dose is irrelevant. Getting into a 104 degree hot tub I have more "total dose" of heat entering my skin than pouring a cup on boiling water on myself. Yet the former is pleasantly relaxing and the latter can require hospitalization for third-degree burns. A chest x-ray delivers radiation fairly uniformly throughout a large volume of the body. The nudiscopes deliver it all to the skin, a much lesser volume. The effects of radiation are not linear.