With regard to the NASA source that wound up in the trash, it would appear the the junk yard radaition detector defies the laws of nature, or, perhaps those folks at the Marshall Space Flight Center have some sort of new device for x-raying equipment.
"Denbo said some metals that have been recently X-rayed can
also set off the detectors."
Kjell Johansen
Wisconsin Electric Power Company
kjell.johansen@wepco.com