A neutron goes into a bar and asks the bartender: How much for a beer? The bartender replies: For you, no charge.
Two atoms are walking down the street and they run in to each other. One says to the other: Are you all right? - No, I lost an electron! - Are you sure? - Yeah, I'm positive!
The Army Radiation Safety Program
ONLINE RADIATION SAFETY TRAINING
Generic Radiation Safety SOP
Notice of Postings
VDR-2 RADIOACTIVE CHECK SOURCE