On Fri, 7 Aug 2015 19:41:52 -0500
Leon lcb11211@swbelldotnet wrote:

You might google x-ray.

haha
ultrasound would be much safer

i did view a video recently where a guy got a used luggage scanner
he does electronics videos and is from the u.k.

he got it working and you are right that would work for wood and would
take a nice sized log

takes up a lot of space though