Reference, Questions and Help => Nuke Q&A => Definitions => Topic started by: Rennhack on Nov 28, 2005, 08:11
Title: Terrestrial radiation
Post by: Rennhack on Nov 28, 2005, 08:11
The portion of the natural background radiation that is emitted by naturally occurring radioactive materials, such as uranium, thorium, and radon in the earth.