X-rays cause ionisation so high doses will kill living cells. They can therfore be used to treat cancers just like gamma radiation.
X-rays have to be carefully focused at the right dosage to kill cancer cells without damaging too many normal cells
To treat Cancer:
1) X-rays are focused on the tumour using a wide beam
2) This beam is rotated round the patient with the tumour at the centre
3) This minimises the exposure of normal cells to radiation and so reduces the chances of damaging the rest of the body.
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