Half Life Flashcards
1
Q
What is the name and measurement and symbol of radiation?
A
Activity, becquerels (Bq)
1 Bq=1 decay per second
2
Q
How can you measure count rate and when a count registered?
A
Connect a GM tube to a ratemeter, when ionising radiation enters the tube
3
Q
What is half life?
A
The time it takes for the number of nuclei in a sample of the isotope to halve
4
Q
What does a shorter half life mean?
A
Greater activity and count rate
