Used to service those cancer treatment machines that used cobalt 60.The cobalt was stored is what is called a 'Pig'.. a 3 ft x 4-5 ft solid block of Lead
The basic story was that if the rod (which holds the cobalt) started moving out of the Pig (you do this to change the cobalt).. you run like shyt and don't stop. :icon_eek:
Guaranteed DEAD if you get uncontrolled exposure .. ;)