It is the low level radiation that is around us at all times.
1 of 7
Where does background radiation come from?
Naturally occurring unstable isotopes=air, food, building materials and rocks. From space=cosmic rays. Human activity=fallout from nuclear explosions or nuclear waste (this is a very small percentage though).
2 of 7
What is radiation dose measured in?
Sieverts (Sv) or millisieverts (mSv).
3 of 7
What is irrradiation?
It is exposure to background radiation.
4 of 7
What is contamination in terms of radiation?
It is when radioactive particles get onto objects.
5 of 7
What are the most dangerous sources of radiation?
Beta and gamma rays as they can penetrate the skin whereas alpha can't.
6 of 7
What is the major concern of working with alpha sources?
Contamination.
7 of 7
Other cards in this set
Card 2
Front
Where does background radiation come from?
Back
Naturally occurring unstable isotopes=air, food, building materials and rocks. From space=cosmic rays. Human activity=fallout from nuclear explosions or nuclear waste (this is a very small percentage though).
Comments
No comments have yet been made