Radiotherapy and cancer cells
Radiotherapy and cancer cells
Radiotherapy uses high-energy ionising radiation to kill cancer cells or stop them dividing. High-energy gamma rays or X-rays are sufficiently penetrating to reach tumours deep inside the body.
Step-by-step lessons on Edexcel GCSE Physics 6.6 Medical uses of radioactivity (physics only). Each one builds up to exam-style questions. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.