Nuclear Radiation Flashcards
1
Q
Why do some atomic nuclei give out radiation
A
Some atomic nuclei are unstable and give out radiation in order to become stable
2
Q
What is dependant on why the nucleus is unstable and is a random process
A
The type of radiation emitted
3
Q
What is the activity of a radioactive source the same as
A
The rate at which it decays
4
Q
What is one Becquerel equivelant to
A
One decay a second
5
Q
What is the count rate
A
The no. Of decays recorded each second by a detector
6
Q
How many counts a second is one becquerel
A
One
7
Q
What are the three main types of nuclear radiation
A
Alpha gamma and beta
8
Q
Which type of nuclear radiation has strong ionising power
A
Alpha
9
Q
Which type of nuclear radiation has reasonable ionising power
A
Beta
10
Q
Which type of nuclear radiation has poor ionising power
A
Gamma
