CP6D Background Radiation Flashcards
1
Q
What is meant by background radiation
A
Radiation that is always present
Its in very small amounts so not harmful
2
Q
Give 4 sources of background radiation
A
Rocks
Cosmic rays from space
Nuclear weapon testing
Nuclear accidents
3
Q
How do you measure and detect background radiation
A
Photographic film
Geiger Muller tube
4
Q
How are Geiger Muller tubes used to measure radiation
A
When Geiger-Muller tubes absorbs radiation is produces a pulse. The frequency of the pulse depends how much radiat
