ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Cancer treatment plan. Screenshot of a radiotherapy treatment plan for targeting cancer in the maxillary sinus (antrum) using a linear accelerator. Linear accelerators are used in radiotherapy as a source of high-voltage X-rays, which can deliver a precisely targeted dose of radiation to treat some cancers. Here, the design is for four differently angled beams and the radiation dose is colour-coded from red (high) to blue (low).
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