Wilhelm Conrad Roentgen discovered the X-Ray in 1895. Since then, the treatment has been used to successfully treat cancer patients. The process uses small amounts of very high-energy radiation to destroy the cancerous cells, making them unable to reproduce. However, the x-rays themselves do not cause the damage, the x-rays react with the water and other compounds in the cell and make free radicals and peroxides, which then react with the DNA. In addition to getting rid of the cancer, radiation therapy can also be used to alleviate a cancer patient's pain. There
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