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Write down three things that x-rays and gamma rays have in common. (3 marks)



Gamma ray sources can be used as tracers to look inside the human body.


a) Why is gamma radiation (rather than alpha or beta radiation) used in tracers?

(2 marks)

b) What is used to detect the gamma rays?

c) Why must exposure to gamma rays be strictly controlled?

Total (8 marks)

Press when finished