6.4.3.1 Background Radiation Flashcards
1
Q
What is background radiation?
A
- low-level radiation
- around us all the time
2
Q
What does background radiation come from?
A
- natural sources such as rocks and cosmic rays from space
- man-made sources such as the fallout from nuclear weapons testing and nuclear accidents
3
Q
How may the level of background radiation and radiation dose be affected?
A
- by occupation
- by location
4
Q
How is radiation dose measured?
A
- sieverts (Sv)
5
Q
How many millisieverts are there in a sievert?
A
- 1000 (mSv)
