Half Life Flashcards
1
Q
What are the two types of background radiation?
A
Natural + Artificial
2
Q
Where does natural radiation come from?
A
Plants, living organisms, rocks and soil
3
Q
Where does artificial radiation come from?
A
Nuclear waste, nuclear fall out and medical uses
4
Q
What do X-Rays emit?
A
Gamma rays
5
Q
Why is sterilising in radiation important?
A
Used to kill harmful microorganisms in food + medicine
6
Q
An example of thickness control would be…
A
Beta - goes through paper
Gamma - goes through aluminium
7
Q
Why is radiotherapy important?
A
Kills cancer cells more than healthy living cells
8
Q
Fire alarms contain _____ particles.
A
alpha
9
Q
Tracers are used for doing what?
A
Finding substances
10
Q
The two types of tracers are called?
A
Medical + Industrial
