Nuclear Fission


(a) Explain why, after a period of use, the fuel rods in a nuclear reactor become

(i) less effective for power production,

(ii) more dangerous.

(3 marks)

(b) Describe the stages in the handling and processing of spent fuel rods after they have been removed from a reactor, indicating how the active wastes are dealt with.

(5 marks)

(Total 8 marks)