Re: unuseful dental x-ray

[MICHELE ROUNDS <MR.RB@worldnet.att.net>]

As for the "true risk", to me at this time, the universal
>curve of risk still looks sigmoid, with the region from about 0.1-0.2 Sv to
>1-3 Sv appearing to be fairly linear.  Period!
>

whatever the effect human exposure to low dose/low dose rate ionizing
radiation truly is, be it negative, positive, or neutral -- it's small --
especially in comparison to all the other known human cancer risks.  hank
reardon