Question
WJEC Unit 2 Physics — Higher tier
In external radiotherapy, a gamma beam from cobalt-60 is rotated around the patient so it always targets the tumour.
(a) Explain why the beam is rotated rather than kept stationary. (2 marks) (b) Suggest one further safety measure used during the treatment. (1 mark)
3 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.