ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Cancer treatment plan. Screenshot of four different angles of a radiotherapy treatment plan for targeting colorectal cancer 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 radiation dose is colour-coded from red (high) to blue (low), and is superimposed on magnetic resonance imaging (MRI) scans of the affected area.
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